{"id":9829,"date":"2026-09-13T07:48:45","date_gmt":"2026-09-13T07:48:45","guid":{"rendered":"https:\/\/www.cameraegg.org\/camerareview\/best-lens-for-om-system-pen\/"},"modified":"2026-09-16T08:36:57","modified_gmt":"2026-09-16T08:36:57","slug":"best-lens-for-om-system-pen","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/camerareview\/best-lens-for-om-system-pen\/","title":{"rendered":"Best Lens for OM SYSTEM PEN"},"content":{"rendered":"<div class=\"gagen-article gagen-v2\">\n<div class=\"article-intro\">\n<p>The $1,099 OM SYSTEM PEN kit already includes the new sealed 14-42mm F3.5-5.6 III. The first extra lens that keeps the 393 g rangefinder pocketable \u2014 and keeps the body\u2019s IPX1 honest \u2014 is the M.Zuiko Digital 17mm F1.8 II.<\/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 September 2026 \u00b7 OM SYSTEM PEN \u00b7 393 g \u00b7 IPX1 body \u00b7 kit 14-42 III 125 g \/ 46 mm \u00b7 Live ND ND2\u2013ND16 already in the CP button<\/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\">M.Zuiko 17mm F1.8 II<\/strong>\n  <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2605 <span class=\"qp-score\">4.8 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n  <p class=\"qp-why\">34mm-equiv, 112 g, 46 mm, IPX1. The sealed street prime that matches this PEN.<\/p>\n  <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/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\">M.Zuiko 25mm F1.8 II<\/strong>\n  <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2606 <span class=\"qp-score\">4.6 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n  <p class=\"qp-why\">50mm-equiv, 156 g, 46 mm, IPX1. Same seal family, $100 less than the 17mm II.<\/p>\n  <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/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\">M.Zuiko 45mm F1.8<\/strong>\n  <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2606 <span class=\"qp-score\">4.4 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n  <p class=\"qp-why\">90mm-equiv, 116 g, 37 mm. Not weatherproof. The cheap portrait prime.<\/p>\n  <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+45mm+F1.8&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/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>This page contains affiliate links. A purchase through those links may earn Cameraegg a commission at no extra cost to you.<\/em><\/p><\/div>\n\n<div class=\"info-module buying-guide\" id=\"who-should-buy\">\n  <h3>Who should buy what<\/h3>\n  <ul>\n  <li><strong>Sealed street \/ travel on a rangefinder PEN:<\/strong> <a href=\"#best-overall\">17mm F1.8 II<\/a>. 34mm-equiv, 112 g, same 46 mm filter as the kit zoom.<\/li>\n  <li><strong>Sealed standard prime, less money:<\/strong> <a href=\"#best-value\">25mm F1.8 II<\/a>. 50mm-equiv, 156 g, still IPX1.<\/li>\n  <li><strong>Portraits on a dry day:<\/strong> <a href=\"#budget-pick\">45mm F1.8<\/a>. 90mm-equiv, 116 g. OM lists weatherproof as no.<\/li>\n  <li><strong>Body-only $999 kit:<\/strong> the new <a href=\"#kit-zoom\">14-42mm F3.5-5.6 III<\/a> is the sealed zoom, not a third prime. Skip 12-40 PRO \u2014 that is the <a href=\"https:\/\/www.cameraegg.org\/camerareview\/best-prime-lens-for-om-system-om-1\/\">OM-1<\/a>. Skip 12mm F2 as Overall; that is the older <a href=\"https:\/\/www.cameraegg.org\/camerareview\/best-prime-lens-for-om-system\/\">OM System primes<\/a> pick.<\/li>\n  <\/ul>\n<\/div>\n\n<div class=\"table-container\">\n  <table class=\"comparison-table\">\n  <thead><tr><th>Lens<\/th><th>Equiv.<\/th><th>Weight \/ filter<\/th><th>Seal<\/th><th>Buy<\/th><\/tr><\/thead>\n  <tbody>\n  <tr class=\"highlight-row\"><td><strong>17mm F1.8 II<\/strong><\/td><td>34 mm<\/td><td>112 g \u00b7 46 mm<\/td><td>IPX1 \u2014 matches the PEN<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n  <tr><td><strong>25mm F1.8 II<\/strong><\/td><td>50 mm<\/td><td>156 g \u00b7 46 mm<\/td><td>IPX1 \u2014 same family<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n  <tr><td><strong>45mm F1.8<\/strong><\/td><td>90 mm<\/td><td>116 g \u00b7 37 mm<\/td><td>No \u2014 dry-day portrait<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Olympus+45mm+F1.8&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n  <tr><td><strong>14-42mm F3.5-5.6 III<\/strong><\/td><td>28\u201384 mm<\/td><td>125 g \u00b7 46 mm<\/td><td>IPX1 kit zoom, not a first extra<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n  <\/tbody>\n  <\/table>\n<\/div>\n\n<h2>How We Picked<\/h2>\n<div class=\"how-we-picked\">\n<p>Three official facts. This is a 393 g IPX1 PEN, not an OM-1 with a 12-40 PRO on the front, and not the 12mm F2 \u201c80 hours in the rainforest\u201d on this site.<\/p>\n<ul>\n  <li><strong>Match the body seal, then the pocket.<\/strong> <a href=\"https:\/\/www.prnewswire.com\/news-releases\/introducing-the-om-system-pen-interchangeable-lens-camera-302871014.html\" target=\"_blank\" rel=\"noopener nofollow\">OM\u2019s launch release<\/a>: first PEN with IPX1 splash sealing, and sealing counts only with a dust- and splash-proof lens. Body $999.99; 14-42 III kit $1,099.99; double kit with 40-150 R $1,299.99. <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1998131-REG\/om_system_v210080bu000_pen.html\" target=\"_blank\" rel=\"noopener nofollow\">B&#038;H<\/a>: 125.8 \u00d7 74.5 \u00d7 43.3 mm, 393 g with battery, 5.5-stop IBIS class, Live ND lives on the CP button (ND2\u2013ND16). An ND filter is not the first accessory.<\/li>\n  <li><strong>Do not repurchase the kit zoom as Overall.<\/strong> <a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-14-42mm-f3-5-5-6-iii-black\" target=\"_blank\" rel=\"noopener nofollow\">14-42mm F3.5-5.6 III<\/a>: 125 g, 46 mm, 28\u201384mm-equiv, IPX1, click-retract (no lock switch), $349.99 standalone, closest focus 0.13 m at 14 mm. If the $1,099 kit is already on the desk, the first extra lens is a fast prime, not a second copy of that zoom.<\/li>\n  <li><strong>Pick the sealed F1.8 II primes that share the kit\u2019s 46 mm thread.<\/strong> <a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-17mm-f1-8-ii\" target=\"_blank\" rel=\"noopener nofollow\">17mm F1.8 II<\/a>: 34mm-equiv, 112 g, 57.6 \u00d7 37.6 mm, 46 mm, IPX1, $649.99. <a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-25mm-f1-8-ii\" target=\"_blank\" rel=\"noopener nofollow\">25mm F1.8 II<\/a>: 50mm-equiv, 156 g, 59.4 \u00d7 42 mm, 46 mm, IPX1, $549.99. <a href=\"https:\/\/explore.omsystem.com\/c\/en\/m-zuiko-45mm-f1-8\" target=\"_blank\" rel=\"noopener nofollow\">45mm F1.8<\/a>: 90mm-equiv, 116 g, 37 mm, weatherproof <strong>No<\/strong>. 12-40 PRO and 300mm PRO stay on the OM-1 wildlife pages.<\/li>\n<\/ul>\n<\/div>\n\n<h2>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>M.Zuiko Digital 17mm F1.8 II <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+17mm+F1.8+II\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Sealed street and travel on a rangefinder PEN<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> 34mm-equiv \u00b7 112 g \u00b7 IPX1 \u00b7 46 mm<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.8 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n  <tr><th>SKU<\/th><td>M.Zuiko Digital 17mm F1.8 II \u2014 <a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-17mm-f1-8-ii\" target=\"_blank\" rel=\"noopener nofollow\">OM SYSTEM<\/a><\/td><\/tr>\n  <tr><th>Angle<\/th><td>17 mm \u00b7 34mm-equiv \u00b7 65\u00b0 \u00b7 F1.8\u2013F22<\/td><\/tr>\n  <tr><th>Build<\/th><td>112 g \u00b7 57.6 \u00d7 37.6 mm \u00b7 46 mm \u00b7 LC-46 \u00b7 LH-49B<\/td><\/tr>\n  <tr><th>Seal<\/th><td>IPX1 splash \/ dust \/ freeze \u2014 matches the PEN footnote<\/td><\/tr>\n  <tr><th>Focus<\/th><td>0.25 m \u00b7 0.08\u00d7 (0.16\u00d7 equiv.) \u00b7 MSC<\/td><\/tr>\n  <tr><th>Price<\/th><td>$649.99<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the PEN.<\/strong> A 34mm-equivalent on a 393 g rangefinder is the everyday street width. The Mark II adds the seal the original 17mm F1.8 never had, so a sudden rain does not turn the IPX1 body into a paperweight. 46 mm matches the kit zoom\u2019s thread. 112 g keeps the kit under half a kilo with a card and the <a href=\"https:\/\/www.cameraegg.org\/camerareview\/best-battery-for-om-system-pen\/\">BLS-7<\/a>.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+17mm+F1.8+II\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">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>M.Zuiko Digital 25mm F1.8 II <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+25mm+F1.8+II\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Sealed 50mm-equiv without the 17mm II price<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> 50mm-equiv \u00b7 156 g \u00b7 IPX1 \u00b7 46 mm<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.6 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n  <tr><th>SKU<\/th><td>M.Zuiko Digital 25mm F1.8 II \u2014 <a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-25mm-f1-8-ii\" target=\"_blank\" rel=\"noopener nofollow\">OM SYSTEM<\/a><\/td><\/tr>\n  <tr><th>Angle<\/th><td>25 mm \u00b7 50mm-equiv \u00b7 47\u00b0 \u00b7 F1.8\u2013F22<\/td><\/tr>\n  <tr><th>Build<\/th><td>156 g \u00b7 59.4 \u00d7 42 mm \u00b7 46 mm \u00b7 LC-46<\/td><\/tr>\n  <tr><th>Seal<\/th><td>IPX1 \u2014 same Mark II family as the 17mm<\/td><\/tr>\n  <tr><th>Focus<\/th><td>0.25 m \u00b7 0.12\u00d7 (0.24\u00d7 equiv.)<\/td><\/tr>\n  <tr><th>Price<\/th><td>$549.99<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it is Value.<\/strong> Same weather rating, same 46 mm thread, $100 under the 17mm II. 156 g is still a PEN-scale prime. Take this when the kit zoom already covers 28mm-equiv and the missing look is a sealed 50, not a wider street view.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+25mm+F1.8+II\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">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>M.Zuiko Digital 45mm F1.8 <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+45mm+F1.8&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Olympus+45mm+F1.8\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Dry-day portraits at 90mm-equiv<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> 116 g \u00b7 37 mm \u00b7 no weather seal<\/div>\n  <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.4 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n  <tr><th>SKU<\/th><td>M.Zuiko Digital 45mm F1.8 \u2014 <a href=\"https:\/\/explore.omsystem.com\/c\/en\/m-zuiko-45mm-f1-8\" target=\"_blank\" rel=\"noopener nofollow\">OM SYSTEM<\/a><\/td><\/tr>\n  <tr><th>Angle<\/th><td>45 mm \u00b7 90mm-equiv \u00b7 27\u00b0 \u00b7 F1.8\u2013F22<\/td><\/tr>\n  <tr><th>Build<\/th><td>116 g \u00b7 56 \u00d7 46 mm \u00b7 37 mm filter<\/td><\/tr>\n  <tr><th>Seal<\/th><td>Weatherproof: No<\/td><\/tr>\n  <tr><th>Focus<\/th><td>0.50 m \u00b7 0.11\u00d7<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it is Budget.<\/strong> 116 g is PEN-scale. 90mm-equivalent is the cheap portrait look the 14-42 III cannot fake at F5.6. OM\u2019s own spec table says it is not weatherproof, so the body\u2019s IPX1 stops at the mount in rain. Different filter (37 mm) than the 46 mm kit \/ F1.8 II pair.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+45mm+F1.8&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=Olympus+45mm+F1.8&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Olympus+45mm+F1.8&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Olympus+45mm+F1.8&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Olympus+45mm+F1.8\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<h2>If You Need Something Else<\/h2>\n<p>The kit zoom is the sealed walk-around if the body was bought bare. 12-40 PRO is the OM-1 \u2014 too much lens for a 43.3 mm-deep PEN.<\/p>\n\n<div class=\"top-recommendation\" id=\"kit-zoom\" data-badge=\"also-great\">\n  <div class=\"top-badge badge-also-great\">Already in the $1,099 kit<\/div>\n  <h3>M.Zuiko 14-42mm F3.5-5.6 III <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+14-42mm+F3.5-5.6+III\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <table class=\"spec-table\">\n  <tr><th>SKU<\/th><td><a href=\"https:\/\/explore.omsystem.com\/us\/en\/m-zuiko-14-42mm-f3-5-5-6-iii-black\" target=\"_blank\" rel=\"noopener nofollow\">14-42mm F3.5-5.6 III<\/a> \u00b7 $349.99 standalone<\/td><\/tr>\n  <tr><th>Build<\/th><td>125 g \u00b7 \u00d860 \u00d7 50.5 mm \u00b7 46 mm \u00b7 IPX1 \u00b7 click-retract<\/td><\/tr>\n  <tr><th>Close focus<\/th><td>0.13 m at 14 mm \u00b7 0.26\u00d7 (0.53\u00d7 equiv.)<\/td><\/tr>\n  <tr><th>PEN job<\/th><td>Buy this if the body is $999 bare. Do not rebuy it as the first prime.<\/td><\/tr>\n  <\/table>\n  <p>OM\u2019s IBIS footnote for 5.5 stops was measured with this lens at 42 mm. The double kit\u2019s 40-150 R is a second zoom, not a substitute for a sealed F1.8. Leave 12-40 PRO and 300mm PRO on <a href=\"https:\/\/www.cameraegg.org\/camerareview\/best-telephoto-lens-for-om-system-om-1\/\">Best Telephoto Lens for OM SYSTEM OM-1<\/a>.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=OM+SYSTEM+14-42mm+F3.5-5.6+III&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+14-42mm+F3.5-5.6+III\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"pro-skip\" data-badge=\"also-great\">\n  <div class=\"top-badge badge-also-great\">Also consider<\/div>\n  <h3>M.Zuiko 12-40mm F2.8 PRO <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+12-40mm+F2.8+PRO&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+12-40mm+F2.8+PRO\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <table class=\"spec-table\">\n  <tr><th>This body<\/th><td>393 g rangefinder \u00b7 43.3 mm deep \u00b7 IPX1 splash, not an OM-1 weather tank<\/td><\/tr>\n  <tr><th>That lens<\/th><td>The standard PRO zoom on OM-1 pages. It works. It is the wrong scale.<\/td><\/tr>\n  <\/table>\n  <p>A sealed F1.8 II keeps the PEN a PEN. The PRO zoom turns it into a short OM-5. Use the CP button\u2019s Live ND instead of hanging filters off a 12-40 for water-blur.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+12-40mm+F2.8+PRO&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=OM+SYSTEM+12-40mm+F2.8+PRO&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=OM+SYSTEM+12-40mm+F2.8+PRO&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=OM+SYSTEM+12-40mm+F2.8+PRO&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=OM+SYSTEM+12-40mm+F2.8+PRO\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-module\">\n  <div class=\"faq-item\"><h3>Why 17mm F1.8 II is Overall instead of the kit 14-42 III<\/h3><p>The $1,099 kit already includes the 14-42 III. Overall is the first extra lens. The 17mm F1.8 II is 112 g, 34mm-equiv, IPX1, and shares the kit\u2019s 46 mm thread. The zoom is the sealed walk-around, not a second purchase for kit buyers.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Why 17mm II instead of the older 12mm F2<\/h3><p>This site\u2019s older OM System primes page led with 12mm F2. That is a 24mm-equiv landscape, and it is not the IPX1 Mark II family. The PEN\u2019s job is a pocket rangefinder. 34mm-equiv sealed is the match.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Whether the body\u2019s IPX1 works with 45mm F1.8<\/h3><p>OM\u2019s launch footnote: splash sealing applies when the PEN is paired with a dust- and splash-proof lens. OM lists the 45mm F1.8 as weatherproof: no. Rain is a 17mm II or 25mm II or 14-42 III job.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Whether a 46 mm filter set covers the kit<\/h3><p>Yes for 14-42 III, 17mm F1.8 II, and 25mm F1.8 II. The 45mm F1.8 is 37 mm. Live ND ND2\u2013ND16 is already on the CP button, so an ND filter is not the first PEN accessory.<\/p><\/div>\n  <div class=\"faq-item\"><h3>What the double kit 40-150 R is for<\/h3><p>The $1,299 kit adds the 40-150mm F4.0-5.6 R. That is a light tele zoom, not a sealed F1.8 and not a 300mm PRO. Buy the double kit for reach. Buy 17mm II or 25mm II for an extra sealed prime.<\/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\"><strong>M.Zuiko 17mm F1.8 II<\/strong> <span class=\"verdict-reason\">\u2013 Sealed 34mm-equiv, 112 g, 46 mm. The PEN-scale street prime.<\/span><\/div>\n  <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+17mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">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\"><strong>M.Zuiko 25mm F1.8 II<\/strong> <span class=\"verdict-reason\">\u2013 Sealed 50mm-equiv, 156 g, $549.99. Same 46 mm family.<\/span><\/div>\n  <a href=\"https:\/\/www.amazon.com\/s?k=OM+SYSTEM+25mm+F1.8+II&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">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\"><strong>M.Zuiko 45mm F1.8<\/strong> <span class=\"verdict-reason\">\u2013 90mm-equiv portraits at 116 g. Not sealed.<\/span><\/div>\n  <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+45mm+F1.8&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">Buy Now<\/a>\n  <\/div>\n  <\/div>\n  <p class=\"verdict-summary\">For the OM SYSTEM PEN, buy the 17mm F1.8 II as the first extra lens. Take the 25mm F1.8 II when the look is a sealed 50. Take the 45mm F1.8 on dry portrait days. Leave the 14-42 III in the kit box, and leave 12-40 PRO on the OM-1. This body is 393 g and IPX1 only with a sealed lens.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The $1,099 PEN kit already includes the sealed 14-42mm F3.5-5.6 III. The first extra lens that keeps the 393 g IPX1 rangefinder pocketable is the M.Zuiko 17mm F1.8 II.<\/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":[2,162],"tags":[361,4109],"class_list":["post-9829","post","type-post","status-publish","format-standard","hentry","category-lenses","category-om-system","tag-om-system","tag-om-system-pen"],"_links":{"self":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/9829","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=9829"}],"version-history":[{"count":1,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/9829\/revisions"}],"predecessor-version":[{"id":9867,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/9829\/revisions\/9867"}],"wp:attachment":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/media?parent=9829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/categories?post=9829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/tags?post=9829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}