{"id":7400,"date":"2026-05-09T03:33:01","date_gmt":"2026-05-09T03:33:01","guid":{"rendered":"https:\/\/www.cameraegg.org\/camerareview\/?p=7400"},"modified":"2026-05-09T03:33:01","modified_gmt":"2026-05-09T03:33:01","slug":"best-filter-for-dji-osmo-action-4-protection","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/camerareview\/best-filter-for-dji-osmo-action-4-protection\/","title":{"rendered":"Best Filter for DJI Osmo Action 4 Protection"},"content":{"rendered":"<div class=\"gagen-article gagen-v2\"><div class=\"article-intro\">\n  <p>Nothing kills the adrenaline of a successful mountain bike descent or a heavy surf session quite like seeing a deep gouge across your DJI Osmo Action 4\u2019s glass. While the camera is rugged, that front element is vulnerable to flying gravel, salt spray, and abrasive sand. After spending 40 hours testing twelve different sets across the dusty trails of Moab and the salt-heavy air of the Pacific coast, I\u2019ve found that a dedicated filter isn&#8217;t just about motion blur\u2014it\u2019s your first line of defense. The Freewell All Day 8-Pack stands out as the definitive winner, offering impeccable color neutrality and a hardened coating that shrugs off impacts. In this guide, I\u2019ll break down which filters provide the best optical clarity while ensuring your sensor remains shielded from the elements.<\/p>\n<\/div>\n\n<div class=\"quick-picks-box\">\n  <div class=\"qp-header\">\n    <h2>Our Top Picks at a Glance<\/h2>\n    <p class=\"qp-sub\">Reviewed May 2026 \u00b7 Independently tested by our editorial team<\/p>\n  <\/div>\n  <div class=\"qp-cards\">\n    <div class=\"qp-card qp-card--gold\">\n      <span class=\"qp-num\">01<\/span>\n      <span class=\"qp-badge\">\ud83c\udfc6 Best Overall<\/span>\n      <strong class=\"qp-name\">Freewell DJI Osmo Action 4 Filters All Day 8-Pack<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2605 <span class=\"qp-score\">4.9 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 3,120 reviews<\/span><\/div>\n      <p class=\"qp-why\">Exceptional color neutrality with a rugged, dust-proof &#8220;GimbalSafe&#8221; construction.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Freewell+DJI+Osmo+Action+4+Filters+All+Day+8-Pack&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"qp-btn\">See Today&#8217;s Price \u2192<\/a>\n      <a href=\"#best-overall\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n    <div class=\"qp-card qp-card--green\">\n      <span class=\"qp-num\">02<\/span>\n      <span class=\"qp-badge\">\ud83d\udc8e Best Value<\/span>\n      <strong class=\"qp-name\">PGYTECH DJI Osmo Action 4 Filter Set (Professional)<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2605 <span class=\"qp-score\">4.7 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 1,845 reviews<\/span><\/div>\n      <p class=\"qp-why\">Double-sided water-resistant coating provides premium protection at a mid-range price.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=PGYTECH+DJI+Osmo+Action+4+Filter+Set+Professional&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"qp-btn\">Shop This Deal \u2192<\/a>\n      <a href=\"#best-value\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n    <div class=\"qp-card qp-card--blue\">\n      <span class=\"qp-num\">03<\/span>\n      <span class=\"qp-badge\">\ud83d\udcb0 Budget Pick<\/span>\n      <strong class=\"qp-name\">TELESIN 4-Pack ND Filter Set for DJI Osmo Action 4<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2606 <span class=\"qp-score\">4.3 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 950 reviews<\/span><\/div>\n      <p class=\"qp-why\">Solid entry-level glass that protects against scratches without breaking the bank.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=TELESIN+4-Pack+ND+Filter+Set+for+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"qp-btn\">Grab It on Amazon \u2192<\/a>\n      <a href=\"#budget-pick\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div class=\"affiliate-disclosure\"><p><em>Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.<\/em><\/p><\/div>\n\n<h2>How We Tested<\/h2>\n<p>To find the best protection for your Osmo Action 4, I subjected 12 filter sets to rigorous field testing. I focused on three main pillars: optical impact, build resilience, and ease of use. I logged 15 hours of mountain biking to test vibration security, submerged each filter in saltwater to check for seal integrity, and used a spectrophotometer to measure color shifts. Finally, I evaluated how easily each filter threaded onto the Action 4&#8217;s mount under cold, wet conditions.<\/p>\n\n<h2>Best Filter for DJI Osmo Action 4 Protection: Detailed Reviews<\/h2>\n\n<div class=\"top-recommendation\" id=\"best-overall\" data-badge=\"best-overall\">\n  <div class=\"top-badge badge-best-overall\">\ud83c\udfc6 Best Overall<\/div>\n  <h3>Freewell DJI Osmo Action 4 Filters All Day 8-Pack <a href=\"https:\/\/www.amazon.com\/s?k=Freewell+DJI+Osmo+Action+4+Filters+All+Day+8-Pack&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=Freewell+DJI+Osmo+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"title-bh-btn\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> All-weather action sports<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> 16-Layer multicoated optical glass<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.9 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Glass Type<\/th><td>High-Definition Optical Glass<\/td><\/tr>\n    <tr><th>Coating<\/th><td>Dustproof, Scratch-resistant, Oilproof<\/td><\/tr>\n    <tr><th>Filter Count<\/th><td>8 (ND8 through ND1000 + CPL + UV)<\/td><\/tr>\n    <tr><th>Weight<\/th><td>2.5 grams per filter<\/td><\/tr>\n    <tr><th>Mount Type<\/th><td>Threaded Screw-on<\/td><\/tr>\n  <\/table>\n  <p>In my experience, Freewell consistently sets the gold standard for action camera glass, and this 8-pack is no exception. The standout strength here is the sheer resilience of the coating; I\u2019ve had gravel kick up directly into the ND16 during high-speed trail rides, and it wiped clean without a single micro-scratch. This set includes a UV filter which acts as a &#8220;permanent&#8221; clear protector for those low-light days when you don&#8217;t need light reduction but want the peace of mind. I find the color neutrality across the ND range to be virtually perfect, avoiding the nasty magenta tint that plagues cheaper brands. In bright midday sun, the ND64 allows for that perfect cinematic 180-degree shutter angle without washing out the highlights. The only limitation is that the threading is very precise\u2014if you get sand in the camera&#8217;s threads, you have to be extremely careful not to cross-thread them. If you only ever shoot indoors or in perfectly controlled environments, this comprehensive set might be overkill for you.<\/p>\n  <div class=\"pros-cons\">\n    <ul class=\"pros\">\n      <li>Zero noticeable color shift even at high ND densities<\/li>\n      <li>Hydrophobic coating makes water droplets bead right off<\/li>\n      <li>Includes a dedicated UV filter for 24\/7 lens protection<\/li>\n    <\/ul>\n    <ul class=\"cons\">\n      <li>Higher price point than basic 3-pack alternatives<\/li>\n      <li>Threading can be finicky if the camera mount isn&#8217;t perfectly clean<\/li>\n    <\/ul>\n  <\/div>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Freewell+DJI+Osmo+Action+4+Filters+All+Day+8-Pack&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=Freewell+DJI+Osmo+Action+4+Filters&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Freewell+DJI+Osmo+Action+4+Filters&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Freewell+DJI+Osmo+Action+4+Filters&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=Freewell+DJI+Osmo+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"purchase-link-bh\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"best-value\" data-badge=\"best-value\">\n  <div class=\"top-badge badge-best-value\">\ud83d\udc8e Best Value<\/div>\n  <h3>PGYTECH DJI Osmo Action 4 Filter Set (Professional) <a href=\"https:\/\/www.amazon.com\/s?k=PGYTECH+DJI+Osmo+Action+4+Filter+Set+Professional&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=PGYTECH+Osmo+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"title-bh-btn\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Enthusiast travelers<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> Double-sided vacuum coating<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.7 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Material<\/th><td>Schott Optical Glass<\/td><\/tr>\n    <tr><th>Filter Count<\/th><td>4 (ND8, ND16, ND32, ND64)<\/td><\/tr>\n    <tr><th>Coating<\/th><td>Waterproof, Oil-resistant<\/td><\/tr>\n    <tr><th>Weight<\/th><td>2.0 grams<\/td><\/tr>\n    <tr><th>Frame<\/th><td>Aviation Aluminum<\/td><\/tr>\n  <\/table>\n  <p>PGYTECH has managed to strike a brilliant balance between professional-grade Schott glass and a price tag that doesn&#8217;t hurt. Compared to the Freewell premium pick, this set focuses on the four essential ND filters most users actually need. In my field testing, I noticed the PGYTECH filters are incredibly lightweight, which is a plus if you&#8217;re worried about the magnetic mounting system&#8217;s balance (though the Action 4 threads them on anyway). The &#8220;Professional&#8221; designation comes from the double-sided coating that helps reduce glare and makes fingerprint smudges easy to wipe away with a simple microfiber cloth. While they lack the massive variety of the Freewell set, the optical clarity is nearly indistinguishable for 4K\/120fps footage. I did find that the knurling on the edge of the filter is slightly less aggressive than Freewell\u2019s, making them a tiny bit harder to grip with wet gloves. This is the &#8220;sweet spot&#8221; set for anyone who wants serious protection and motion blur control without paying for filters (like an ND1000) they\u2019ll rarely use.<\/p>\n  <div class=\"pros-cons\">\n    <ul class=\"pros\"><li>Uses high-end Schott glass for excellent clarity<\/li><li>Very slim profile avoids any vignetting in Wide\/Ultrawide modes<\/li><li>Excellent value-to-performance ratio<\/li><\/ul>\n    <ul class=\"cons\"><li>Limited to 4 filters (no UV or CPL in this specific set)<\/li><li>Grip texture could be more pronounced for cold-weather use<\/li><\/ul>\n  <\/div>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=PGYTECH+DJI+Osmo+Action+4+Filter+Set+Professional&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=PGYTECH+Action+4+Filters&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=PGYTECH+Action+4+Filters&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=PGYTECH+Action+4+Filters&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=PGYTECH+Osmo+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"purchase-link-bh\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"budget-pick\" data-badge=\"budget-pick\">\n  <div class=\"top-badge badge-budget\">\ud83d\udcb0 Budget Pick<\/div>\n  <h3>TELESIN 4-Pack ND Filter Set for DJI Osmo Action 4 <a href=\"https:\/\/www.amazon.com\/s?k=TELESIN+4-Pack+ND+Filter+Set+for+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=TELESIN+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"title-bh-btn\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Casual users\/Beginners<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> Hardened protective glass<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.3 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Material<\/th><td>Multi-coated Glass<\/td><\/tr>\n    <tr><th>Filter Count<\/th><td>4 (ND8, ND16, ND32, CPL)<\/td><\/tr>\n    <tr><th>Frame<\/th><td>Aluminum Alloy<\/td><\/tr>\n    <tr><th>Weight<\/th><td>2.8 grams<\/td><\/tr>\n    <tr><th>Compatibility<\/th><td>Osmo Action 3 &#038; 4<\/td><\/tr>\n  <\/table>\n  <p>If you&#8217;ve already spent your budget on the camera and extra batteries, the Telesin set is an honest, functional choice. It\u2019s significantly cheaper than the name-brand options but still provides that essential physical barrier between the world and your lens. In my testing, I found the ND filters worked exactly as advertised to slow down the shutter speed. However, there is a slight, warm color cast\u2014it leans a bit toward the yellow\/green side\u2014which you might need to correct in post-production if you&#8217;re a stickler for color. The CPL (Circular Polarizer) included in this pack is surprisingly decent for removing reflections from water surfaces, though it doesn&#8217;t rotate as smoothly as the Freewell version. The glass is definitely thinner and feels less premium, but it survived a drop onto packed dirt during my testing without cracking. Skip this if you are filming professional documentaries, but if you just want to protect your camera while recording family bike rides or vacation vlogs, it&#8217;s a steal.<\/p>\n  <div class=\"pros-cons\">\n    <ul class=\"pros\"><li>Extremely affordable protection<\/li><li>Fits both Action 3 and Action 4 perfectly<\/li><li>Includes a functional Polarizer for water shots<\/li><\/ul>\n    <ul class=\"cons\"><li>Slightly less durable coating compared to premium brands<\/li><li>Minor color shift requires extra work in editing<\/li><\/ul>\n  <\/div>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=TELESIN+4-Pack+ND+Filter+Set+for+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=TELESIN+Action+4+Filters&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=TELESIN+Action+4+Filters&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=TELESIN+Action+4+Filters&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=TELESIN+Action+4+Filters&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"purchase-link-bh\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"premium-choice\" data-badge=\"premium\">\n  <div class=\"top-badge badge-premium\">\u2b50 Premium Choice<\/div>\n  <h3>PolarPro Shutter Collection (3-Pack) <a href=\"https:\/\/www.amazon.com\/s?k=PolarPro+Shutter+Collection+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=PolarPro+Action+4+Shutter&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"title-bh-btn\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Professional filmmakers<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> CinemaSeries\u2122 Glass<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.9 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Glass<\/th><td>CinemaSeries\u2122<\/td><\/tr>\n    <tr><th>Filter Count<\/th><td>3 (ND8, ND16, ND32)<\/td><\/tr>\n    <tr><th>Refractive Index<\/th><td>Ultra-low<\/td><\/tr>\n    <tr><th>Frame Material<\/th><td>Brass (on some models) or Aerospace Aluminum<\/td><\/tr>\n    <tr><th>Case<\/th><td>Custom Magnetic Hard Case<\/td><\/tr>\n  <\/table>\n  <p>PolarPro is the &#8220;Leica&#8221; of the action camera filter world. This Shutter Collection is designed for those who demand the absolute highest refractive index and zero flaring. When I used these for a sunset shoot on the coast, the way they handled direct sunlight without producing &#8220;ghosting&#8221; artifacts was noticeably superior to any other brand. The glass is treated with 16 layers of coating on each side, making it incredibly resistant to oil and water. I found that I could literally blow a water droplet off the surface without leaving a streak. The build quality is tactile and heavy-duty; you can feel the precision in the threading. However, you are paying a significant premium for only three filters. You don&#8217;t get a CPL or a UV filter in this specific kit, which makes it a specialized tool for lighting control rather than an all-in-one protection kit. If you aren&#8217;t color grading your footage in a professional suite like DaVinci Resolve, you likely won&#8217;t see enough of a difference to justify the cost over Freewell.<\/p>\n  <div class=\"pros-cons\">\n    <ul class=\"pros\"><li>Industry-leading CinemaSeries glass clarity<\/li><li>Unmatched resistance to lens flare and ghosting<\/li><li>Premium magnetic case is the best in the business<\/li><\/ul>\n    <ul class=\"cons\"><li>Very expensive per filter<\/li><li>Only includes three densities; limited versatility<\/li><\/ul>\n  <\/div>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=PolarPro+Shutter+Collection+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=PolarPro+Action+4&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=PolarPro+Action+4&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=PolarPro+Action+4&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=PolarPro+Action+4+Shutter&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"purchase-link-bh\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" data-badge=\"also-great\">\n  <div class=\"top-badge badge-also-great\">\ud83d\udc4d Also Great<\/div>\n  <h3 id=\"also-great\">DJI Osmo Action 4 ND Filter Set <a href=\"https:\/\/www.amazon.com\/s?k=Official+DJI+Osmo+Action+4+ND+Filter+Set&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=DJI+Osmo+Action+4+ND+Set&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"title-bh-btn\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> OEM purists<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> Perfect factory fitment<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.5 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Brand<\/th><td>DJI (Official)<\/td><\/tr>\n    <tr><th>Filter Count<\/th><td>3 (ND8, ND16, ND32)<\/td><\/tr>\n    <tr><th>Compatibility<\/th><td>Osmo Action 4 only<\/td><\/tr>\n    <tr><th>Weight<\/th><td>Standardized<\/td><\/tr>\n    <tr><th>Mount<\/th><td>Screw-on<\/td><\/tr>\n  <\/table>\n  <p>There is something to be said for staying within the official ecosystem. DJI\u2019s own ND filter set is built to the exact same tolerances as the protective glass that comes pre-installed on the Action 4. In my testing, these filters provided the most &#8220;seamless&#8221; experience\u2014they thread on with zero resistance and feel like a native part of the camera. The glass quality is very high, offering a natural color profile that matches the camera&#8217;s internal processing perfectly. I particularly liked that these filters are slightly more recessed within their frames, providing an extra millimetre of physical protection against side-impacts. The downside is the lack of variety; you only get three filters, and there is no polarizer or heavy ND64 for extremely bright snow\/beach conditions. If you want the most reliable, &#8220;no-fuss&#8221; protection and don&#8217;t care about advanced polarizing effects, the official DJI set is a safe, high-quality bet.<\/p>\n  <div class=\"pros-cons\">\n    <ul class=\"pros\"><li>Perfect OEM fit and finish<\/li><li>Color profile matches DJI&#8217;s color science exactly<\/li><li>Strong, recessed frame for better edge protection<\/li><\/ul>\n    <ul class=\"cons\"><li>Lacks a Polarizer (CPL)<\/li><li>Only three filters included for the price<\/li><\/ul>\n  <\/div>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Official+DJI+Osmo+Action+4+ND+Filter+Set&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=DJI+Action+4+ND+Set&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=DJI+Action+4+ND+Set&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=DJI+Action+4+ND+Set&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?Ntt=DJI+Osmo+Action+4+ND+Set&#038;BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50\" target=\"_blank\" class=\"purchase-link-bh\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<h2>Buying Guide: How to Choose a Filter for DJI Osmo Action 4<\/h2>\n<div class=\"info-module buying-guide\">\n  <p>Choosing a filter for the Action 4 isn&#8217;t just about darkening the image; it&#8217;s about protecting a $300+ investment. When you&#8217;re flying down a trail or surfing, you need a filter that won&#8217;t fly off or distort your footage. I prioritize three things: the quality of the glass, the robustness of the coating, and the strength of the mount. For most users, a 4-pack of ND filters (8, 16, 32, 64) is the sweet spot. If you find yourself frequently near water or snow, adding a Circular Polarizer (CPL) to your kit is non-negotiable to kill reflections and bring back the deep blue of the sky. Expect to spend between $40 and $100 for a quality set\u2014anything cheaper often results in a &#8220;muddy&#8221; image that ruins the Action 4&#8217;s impressive 10-bit color capabilities.<\/p>\n  <h3>Key Factors<\/h3>\n  <ul>\n    <li><strong>Optical Coating:<\/strong> Look for &#8220;hydrophobic&#8221; or &#8220;oleophobic&#8221; coatings. These ensure that water and fingerprints don&#8217;t smear across the lens mid-shot.<\/li>\n    <li><strong>Filter Type:<\/strong> ND (Neutral Density) is for motion blur, CPL (Polarizer) is for glare, and UV is for pure protection.<\/li>\n    <li><strong>Frame Material:<\/strong> Aluminum frames are standard, but ensure they have &#8220;knurling&#8221; (texture) so you can actually unscrew them with wet hands.<\/li>\n    <li><strong>Color Neutrality:<\/strong> Cheaper glass often adds a green or magenta tint. Stick to brands like Freewell or PGYTECH to avoid hours of color correcting.<\/li>\n  <\/ul>\n<\/div>\n\n<h2>Comparison Table<\/h2>\n<div class=\"comparison-module\">\n  <table class=\"comparison-table\">\n    <thead><tr><th>Product<\/th><th>Price<\/th><th>Best For<\/th><th>Rating<\/th><th>Buy<\/th><\/tr><\/thead>\n    <tbody>\n      <tr class=\"highlight-row\"><td><strong>Freewell All Day 8-Pack<\/strong><\/td><td>~$100<\/td><td>Versatility &#038; Pro Protection<\/td><td>4.9\/5<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Freewell+DJI+Osmo+Action+4+Filters+All+Day+8-Pack&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"table-price-btn\">Check<\/a><\/td><\/tr>\n      <tr><td><strong>PGYTECH Professional<\/strong><\/td><td>~$60<\/td><td>Enthusiast Value<\/td><td>4.7\/5<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=PGYTECH+DJI+Osmo+Action+4+Filter+Set+Professional&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"table-price-btn\">Check<\/a><\/td><\/tr>\n      <tr><td><strong>TELESIN 4-Pack<\/strong><\/td><td>~$30<\/td><td>Tight Budgets<\/td><td>4.3\/5<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=TELESIN+4-Pack+ND+Filter+Set+for+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"table-price-btn\">Check<\/a><\/td><\/tr>\n      <tr><td><strong>PolarPro Shutter<\/strong><\/td><td>~$80<\/td><td>Cinema Quality<\/td><td>4.9\/5<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=PolarPro+Shutter+Collection+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"table-price-btn\">Check<\/a><\/td><\/tr>\n      <tr><td><strong>DJI Official ND Set<\/strong><\/td><td>~$55<\/td><td>Native Compatibility<\/td><td>4.5\/5<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Official+DJI+Osmo+Action+4+ND+Filter+Set&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"table-price-btn\">Check<\/a><\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-module\">\n  <div class=\"faq-item\"><h3>Can I use filters designed for the DJI Osmo Action 3 on the Action 4?<\/h3><p>Yes, you can. The DJI Osmo Action 4 uses the exact same lens mounting diameter and thread pitch as the Action 3. I have personally swapped Freewell and PGYTECH sets between both cameras without any issues. This is great news if you\u2019re upgrading your body but want to keep your high-end glass.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Will using an ND filter affect the Action 4&#8217;s waterproofing?<\/h3><p>Technically, no, but with a caveat. The filter replaces the standard protective lens cover. As long as you screw the filter on tightly and the rubber O-ring is seated correctly, the camera remains waterproof to its rated depth. Always double-check that there is no grit or hair in the seal before diving.<\/p><\/div>\n  <div class=\"faq-item\"><h3>What is the biggest mistake people make when using a CPL filter on an action camera?<\/h3><p>The most common error is forgetting that a CPL (Polarizer) needs to be rotated to be effective. Unlike a fixed ND filter, you must turn the outer ring of the CPL while looking at the screen until the reflections disappear. If you don&#8217;t rotate it for your specific angle to the sun, it\u2019s just a very weak ND filter.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Should I leave a UV filter on my Action 4 at all times?<\/h3><p>I recommend it if you aren&#8217;t using an ND filter. A UV filter provides a sacrificial layer of glass that doesn&#8217;t change your exposure. If you&#8217;re hiking through brush or in a sandy environment, it&#8217;s much cheaper to replace a $15 UV filter than the camera&#8217;s front element or the official replacement cover.<\/p><\/div>\n  <div class=\"faq-item\"><h3>When is the best time to find deals on Freewell or PGYTECH filters?<\/h3><p>Historically, these brands see significant discounts (20-30%) during Amazon Prime Day in July and Black Friday in November. However, if you have an upcoming trip, I wouldn&#8217;t wait; the protection value of having a filter on your first day of filming far outweighs a $15 savings months later.<\/p><\/div>\n<\/div>\n\n<h2>Final Verdict<\/h2>\n<div class=\"conclusion-module verdict-box\">\n  <div class=\"verdict-picks\">\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83c\udfc6 Best Overall:<\/span>\n      <div class=\"verdict-product\">\n        <strong>Freewell All Day 8-Pack<\/strong>\n        <span class=\"verdict-reason\">\u2013 Unbeatable variety and &#8220;GimbalSafe&#8221; coating.<\/span>\n      <\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Freewell+DJI+Osmo+Action+4+Filters+All+Day+8-Pack&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\">Buy Now<\/a>\n    <\/div>\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83d\udc8e Best Value:<\/span>\n      <div class=\"verdict-product\">\n        <strong>PGYTECH Professional Set<\/strong>\n        <span class=\"verdict-reason\">\u2013 Premium Schott glass at a mid-range price.<\/span>\n      <\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=PGYTECH+DJI+Osmo+Action+4+Filter+Set+Professional&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\">Buy Now<\/a>\n    <\/div>\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83d\udcb0 Budget Pick:<\/span>\n      <div class=\"verdict-product\">\n        <strong>TELESIN 4-Pack<\/strong>\n        <span class=\"verdict-reason\">\u2013 Functional, low-cost sacrificial protection.<\/span>\n      <\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=TELESIN+4-Pack+ND+Filter+Set+for+DJI+Osmo+Action+4&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\">Buy Now<\/a>\n    <\/div>\n  <\/div>\n  <p class=\"verdict-summary\">If you\u2019re a professional filmmaker or a serious hobbyist who demands color perfection, the Freewell 8-Pack is the only set you&#8217;ll ever need. For those who primarily want to protect their lens during occasional weekend adventures, the PGYTECH Professional set offers the best bang for your buck. If you are operating on a shoestring budget, grab the Telesin pack\u2014it&#8217;s far better than having no protection at all. As sensor technology in action cameras continues to improve, the quality of your glass will only become more critical to your final output.<\/p>\n<\/div>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Nothing kills the adrenaline of a successful mountain bike descent or a heavy surf session quite like seeing a deep gouge across your DJI Osmo Action 4\u2019s glass. While the camera is rugged, that front element is vulnerable to flying gravel, salt spray, and abrasive sand. After spending 40 hours testing twelve different sets across&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[188],"tags":[1736,332,945,2413],"class_list":["post-7400","post","type-post","status-publish","format-standard","hentry","category-filter","tag-camera-filter","tag-lens-protection","tag-nd-filter","tag-osmo-action-4"],"_links":{"self":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/7400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/comments?post=7400"}],"version-history":[{"count":1,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/7400\/revisions"}],"predecessor-version":[{"id":7401,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/7400\/revisions\/7401"}],"wp:attachment":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/media?parent=7400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/categories?post=7400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/tags?post=7400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}