{"id":10082,"date":"2026-10-14T02:46:14","date_gmt":"2026-10-14T02:46:14","guid":{"rendered":"https:\/\/www.cameraegg.org\/camerareview\/best-flash-for-om-system-pen\/"},"modified":"2026-10-14T02:46:14","modified_gmt":"2026-10-14T02:46:14","slug":"best-flash-for-om-system-pen","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/camerareview\/best-flash-for-om-system-pen\/","title":{"rendered":"Best Flash for OM SYSTEM PEN"},"content":{"rendered":"<style>\n.gagen-v2 .faq-item h3::before,\n.gagen-v2 .faq-item p::before {\n  position: static !important; left: auto !important; top: auto !important;\n  width: auto !important; height: auto !important; line-height: inherit !important;\n  background: none !important; display: inline !important;\n  margin: 0 0.45em 0 0 !important; font-size: 1em !important;\n  font-family: inherit !important; letter-spacing: 0 !important;\n}\n.gagen-v2 .faq-item h3 { padding: 0 28px 6px 0 !important; }\n.gagen-v2 .faq-item p { padding-left: 0 !important; }\n<\/style>\n<div class=\"gagen-article gagen-v2\">\n<div class=\"article-intro\">\n<p>The OM SYSTEM PEN ships with a hot shoe cover and no flash. Its X-sync is 1\/250 second, and the body weighs 393 g with a battery and card. The September 9, 2026 compatibility table marks the radio flash with a maximum guide number of 42 as compatible. That flash is the FL-700WR Electronic Flash. <a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Check FL-700WR Electronic Flash on Amazon<\/a>.<\/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 October 2026 \u00b7 Hot shoe \u00b7 X-sync 1\/250 \u00b7 No flash in the box \u00b7 PEN row on the Sep. 9, 2026 table<\/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\">FL-700WR Electronic Flash<\/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\">Guide number 42, radio commander and receiver, dust, splash, and freeze sealing to \u221210\u00b0C. OM SYSTEM lists $439.99, and that US page was out of stock.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#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\">\u26a1 In stock<\/span>\n      <strong class=\"qp-name\">Olympus FL-900R Electronic Flash<\/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\">Maximum guide number 58, also sealed to \u221210\u00b0C, and the US store offer is $440.99 in stock. That is $1.00 above the FL-700WR list price, on clearance.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+FL-900R+Electronic+Flash&#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\">Godox TT350O<\/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\">Guide number 36 at 105mm, 200 g without batteries. Godox\u2019s US page lists $76 and in stock. It is not on OM\u2019s compatibility table.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Godox+TT350O&#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>Radio control on this hot shoe:<\/strong> <a href=\"#best-overall\">FL-700WR Electronic Flash<\/a>. Guide number 42, commander and receiver, sealed to \u221210\u00b0C.<\/li>\n    <li><strong>A higher guide number the US store will ship:<\/strong> <a href=\"#best-value\">Olympus FL-900R Electronic Flash<\/a>. Guide number 58, $440.99, clearance.<\/li>\n    <li><strong>A 393 g body and a small spend:<\/strong> <a href=\"#budget-pick\">Godox TT350O<\/a>. $76, and it is outside the OM table.<\/li>\n  <\/ul>\n<\/div>\n\n<div class=\"table-container\">\n  <table class=\"comparison-table\">\n    <thead><tr><th>Flash<\/th><th>On this PEN<\/th><th>Output and price<\/th><th>Buy<\/th><\/tr><\/thead>\n    <tbody>\n      <tr class=\"highlight-row\"><td><strong>FL-700WR Electronic Flash<\/strong><\/td><td>Compatible. Radio commander and receiver<\/td><td>GN 42, $439.99, US store out of stock<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#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>Olympus FL-900R Electronic Flash<\/strong><\/td><td>Compatible. Clearance, in stock at OM SYSTEM<\/td><td>GN 58 max, offer $440.99<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Olympus+FL-900R+Electronic+Flash&#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>Godox TT350O<\/strong><\/td><td>Not on the OM table. Godox 2.4 GHz radio<\/td><td>GN 36 at 105mm, $76<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Godox+TT350O&#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>FL-LM3<\/strong><\/td><td>Marked incompatible for the PEN row<\/td><td>Clip-on flash for other bodies<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=FL-LM3&#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 sourced facts: the PEN\u2019s shoe and sync line, the September 9, 2026 compatibility row, and which of those flashes the US store still prices.<\/p>\n<ul>\n  <li><strong>The body has a shoe and a 1\/250 sync.<\/strong> OM SYSTEM\u2019s PEN specifications: hot shoe equipped, X-sync 1\/250 second, and with the electronic shutter 1\/50 second up to ISO 6400, or 1\/20 second at ISO 8000 and above or when ISO bracketing. Flash intensity is \u00b13 EV in 1\/3, 1\/2, or 1 EV steps. Wireless flash control is listed as available. The box list is the body, a cap, a hot shoe cover, a strap, a manual, and a battery. Body weight is 393 g with battery and card. Weather sealing is IPX1 when the body is used with an OM SYSTEM splashproof lens. Live ND says flash is unavailable.<\/li>\n  <li><strong>The PEN row is a clean X for two current shoe flashes.<\/strong> OM Digital Solutions compatibility table, modified September 9, 2026: the row named PEN marks FL-700WR and FL-900R compatible, with no footnote. FL-LM3 is marked incompatible. The same table\u2019s footnotes for other cameras restrict MULTI mode or wireless TTL. Those footnotes are not on the PEN row.<\/li>\n  <li><strong>Price and stock decide the order under that table.<\/strong> The FL-700WR US offer is $439.99 and schema availability is out of stock. Maximum guide number 42, about 303 g for the body, coverage 24\u2013150 mm in 35mm terms, radio to 30 m, dust, splash, and freezeproof to \u221210\u00b0C. The FL-900R product-page offer is $440.99 and in stock, in the clearance category, with a maximum guide number of 58. The Godox TT350O US page lists $76 and in stock. Its manual prints guide number 36 at ISO 100 and 105 mm. It does not appear on the OM table.<\/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>FL-700WR Electronic Flash <a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#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=FL-700WR+Electronic+Flash\" 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> TTL on the PEN shoe, plus radio control of more FL-700WR units<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> GN 42 \u00b7 radio to 30 m \u00b7 sealed to \u221210\u00b0C<\/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>OM SYSTEM US price<\/th><td>$439.99, listed out of stock<\/td><\/tr>\n    <tr><th>Guide number<\/th><td>42 maximum<\/td><\/tr>\n    <tr><th>Coverage<\/th><td>24\u2013150 mm, 35mm equivalent<\/td><\/tr>\n    <tr><th>Wireless<\/th><td>Radio, up to 30 m, commander and receiver, up to 3 groups<\/td><\/tr>\n    <tr><th>Sealing<\/th><td>Dust, splash, freezeproof to \u221210\u00b0C<\/td><\/tr>\n    <tr><th>Weight<\/th><td>About 303 g, body only<\/td><\/tr>\n    <tr><th>Also on the flash<\/th><td>TTL, first and second curtain, LED for video, Super FP on the flash page<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the OM SYSTEM PEN.<\/strong> The compatibility row is an X with no footnote, so this is the radio flash OM still lists for the new PEN. Guide number 42 and a 303 g body sit on a camera that weighs 393 g with a battery and card. Coverage runs to 150 mm in 35mm terms, which is the long end of a Micro Four Thirds zoom. Radio works as commander or receiver out to 30 m, in up to three groups. Dust, splash, and freeze sealing to \u221210\u00b0C is the match for a body rated IPX1 with a splashproof lens. The US offer is $439.99. Schema availability on that page is out of stock.<\/p>\n  <p>The flash page also lists Super FP, including a 1\/8000 second line in the short feature list. The PEN specifications page does not. It prints X-sync at 1\/250 second, and a slower ceiling on the electronic shutter. Buy this flash for TTL, bounce, and radio on the shoe. The FL-900R is the in-stock unit with guide number 58. The box includes the flash, a stand, a soft case, a wireless flash adapter, and a manual.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=FL-700WR+Electronic+Flash&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=FL-700WR+Electronic+Flash&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=FL-700WR+Electronic+Flash&#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=FL-700WR+Electronic+Flash\" 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\">\u26a1 In stock<\/div>\n  <h3>Olympus FL-900R Electronic Flash <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+FL-900R+Electronic+Flash&#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+FL-900R+Electronic+Flash\" 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> More output, ordered from the OM SYSTEM US store while the FL-700WR page is out of stock<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> GN 58 \u00b7 sealed to \u221210\u00b0C \u00b7 offer $440.99<\/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>Product-page offer<\/th><td>$440.99, in stock<\/td><\/tr>\n    <tr><th>Crossed price on that page<\/th><td>$629.99<\/td><\/tr>\n    <tr><th>Guide number<\/th><td>58 maximum<\/td><\/tr>\n    <tr><th>Sealing<\/th><td>Dust, splash, freezeproof to \u221210\u00b0C<\/td><\/tr>\n    <tr><th>Store category<\/th><td>Clearance<\/td><\/tr>\n    <tr><th>On the PEN table<\/th><td>Compatible, no footnote<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the OM SYSTEM PEN.<\/strong> The same September 9, 2026 row marks the FL-900R compatible, again with no footnote. OM\u2019s product page calls it a high-power flash with a maximum guide number of 58, dustproof, splashproof, and freezeproof to \u221210\u00b0C, with a commander function and support for Multi mode, High Res Shot, Focus Stacking, and Focus Bracketing. The PEN\u2019s own creative modes include High Res Shot and Focus Stacking. The product-page offer is $440.99 and the schema says in stock. That is $1.00 above the FL-700WR\u2019s $439.99 list price. The page also shows $629.99. A clearance index on the same store listed $503.99. Those two sale figures stay separate. The offer used here is the product page\u2019s $440.99.<\/p>\n  <p>This is the unit the US store will sell now. It is filed under clearance, so it is the remaining stock of the higher-output flash, not a new compact model. The page describes a commander for wireless flash units and does not print the FL-700WR\u2019s radio distance or built-in receiver. Use the FL-700WR when the radio set is the point. Use this one when guide number 58 and a live add-to-cart are the point.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+FL-900R+Electronic+Flash&#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+FL-900R+Electronic+Flash&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Olympus+FL-900R+Electronic+Flash&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Olympus+FL-900R+Electronic+Flash&#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+FL-900R+Electronic+Flash\" 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>Godox TT350O <a href=\"https:\/\/www.amazon.com\/s?k=Godox+TT350O&#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=Godox+TT350O\" 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> A small TTL head on the PEN when the OM flashes cost about $440<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> GN 36 at 105 mm \u00b7 200 g \u00b7 $76<\/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>Godox US price<\/th><td>$76, in stock<\/td><\/tr>\n    <tr><th>Guide number<\/th><td>36 m at ISO 100, at 105 mm<\/td><\/tr>\n    <tr><th>Coverage<\/th><td>24\u2013105 mm, auto or manual zoom<\/td><\/tr>\n    <tr><th>Head<\/th><td>0\u2013270\u00b0 horizontal, \u22127\u00b0 to 90\u00b0 vertical<\/td><\/tr>\n    <tr><th>Power<\/th><td>2 AA. About 210 full-power flashes on 2500 mAh Ni-MH<\/td><\/tr>\n    <tr><th>Size and weight<\/th><td>140 \u00d7 62 \u00d7 38 mm, 200 g without batteries<\/td><\/tr>\n    <tr><th>Radio<\/th><td>Godox 2.4 GHz, master or slave, about 30 m, 3 groups<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the OM SYSTEM PEN.<\/strong> The manual prints guide number 36 at ISO 100 and 105 mm, on a head that weighs 200 g without batteries. That is the small flash for a 393 g body. Godox\u2019s US page lists $76 and in stock, which is $363.99 under the FL-700WR\u2019s $439.99 and $364.99 under the FL-900R offer. Recycle time is about 0.1\u20132.2 seconds on the Ni-MH cells in the manual. The head swings 0\u2013270\u00b0 and tilts from \u22127\u00b0 to 90\u00b0. Two AA cells power it.<\/p>\n  <p>The manual says the TT350O is for Olympus and Panasonic TTL, with its own 2.4 GHz master and slave. OM\u2019s September 9, 2026 table does not list it, so PEN functions that the FL-700WR page names, including High Res Shot and Focus Stacking support, are not claimed here. The manual also lists high-speed sync up to 1\/8000 second. The PEN page does not print that sync. Treat 1\/250 second as the camera\u2019s X-sync. The manual does not list a weather rating. For rain and radio that OM documents on this body, use the FL-700WR.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Godox+TT350O&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=Godox+TT350O&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Godox+TT350O&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Godox+TT350O&#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=Godox+TT350O\" 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 id=\"fl-lm3-skip\">The FL-LM3 is the small clip-on flash that the same table marks compatible with the PEN-F. On the row named PEN, it is a dash. A hot-shoe accessory already on the camera also blocks flash use, which the table states above the footnotes. This PEN\u2019s shoe wants a full flash, not that clip-on.<\/p>\n<p>Live ND, at ND2 through ND16, says flash is unavailable, with ISO held to 800. Focus Stacking and High Res Shot are on the PEN. The FL-700WR and FL-900R pages both say those camera functions are supported. The electronic shutter\u2019s flash ceiling is 1\/50 second up to ISO 6400, and 1\/20 second from ISO 8000 or when ISO bracketing is on.<\/p>\n\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-module\">\n  <div class=\"faq-item\"><h3>What sync speed the PEN prints<\/h3><p>X-sync is 1\/250 second. With the electronic shutter, flash sync is 1\/50 second up to ISO 6400, and 1\/20 second at ISO 8000 and above or when ISO bracketing is used. Compensation is \u00b13 EV in 1\/3, 1\/2, or 1 EV steps.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Whether the flash page\u2019s 1\/8000 second line is the camera\u2019s sync<\/h3><p>The FL-700WR page lists Super FP and a 1\/8000 second feature line. The Godox manual lists high-speed sync up to 1\/8000 second. The PEN specifications page prints 1\/250 second as X-sync and does not add a Super FP line.<\/p><\/div>\n  <div class=\"faq-item\"><h3>What happens to flash in Live ND<\/h3><p>Live ND is ND2, ND4, ND8, or ND16, in S or M only. The specifications say flash is unavailable, ISO goes up to 800, and the fastest shutter at ND2 is 1\/30 second, slower as the ND step rises.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Why the FL-LM3 is not the small-flash pick<\/h3><p>The September 9, 2026 table marks FL-LM3 incompatible on the PEN row. It remains marked compatible with the PEN-F. This body\u2019s box includes a hot shoe cover, and the shoe is the mount for the three flashes above.<\/p><\/div>\n  <div class=\"faq-item\"><h3>What the two OM store prices mean<\/h3><p>The FL-700WR offer is $439.99 and the page is out of stock. The FL-900R product-page offer is $440.99 and in stock, with $629.99 also shown on that page. A clearance index listed the FL-900R at $503.99. The $440.99 figure is the product-page offer.<\/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>FL-700WR Electronic Flash<\/strong> <span class=\"verdict-reason\">\u2013 GN 42, radio to 30 m, sealed to \u221210\u00b0C, $439.99.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=FL-700WR+Electronic+Flash&#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\">\u26a1 In stock:<\/span>\n      <div class=\"verdict-product\"><strong>Olympus FL-900R Electronic Flash<\/strong> <span class=\"verdict-reason\">\u2013 GN 58, clearance offer $440.99.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Olympus+FL-900R+Electronic+Flash&#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>Godox TT350O<\/strong> <span class=\"verdict-reason\">\u2013 GN 36 at 105 mm, 200 g, $76.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Godox+TT350O&#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\">The OM SYSTEM PEN has a hot shoe, no flash in the box, and X-sync at 1\/250 second. The FL-700WR Electronic Flash is the compatible radio flash, with guide number 42, sealing to \u221210\u00b0C, and a $439.99 US list price that was out of stock. The Olympus FL-900R Electronic Flash is compatible too, with a maximum guide number of 58, and the product-page offer is $440.99 in stock on clearance. The Godox TT350O is guide number 36 at 105 mm and $76, and it is not on OM\u2019s September 9, 2026 table.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The OM SYSTEM PEN has a hot shoe and no flash in the box. X-sync is 1\/250 second. The FL-700WR is the compatible radio flash, with a maximum guide number of 42.<\/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":[24,162],"tags":[1087,562,361,4109],"class_list":["post-10082","post","type-post","status-publish","format-standard","hentry","category-flash","category-om-system","tag-camera-flash","tag-external-flash","tag-om-system","tag-om-system-pen"],"_links":{"self":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/10082","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=10082"}],"version-history":[{"count":0,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/10082\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/media?parent=10082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/categories?post=10082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/tags?post=10082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}