{"id":12037,"date":"2014-05-04T20:12:31","date_gmt":"2014-05-04T20:12:31","guid":{"rendered":"https:\/\/uwphoto.onpressidium.com\/canon-70d-video-review\/"},"modified":"2025-08-15T06:59:06","modified_gmt":"2025-08-15T06:59:06","slug":"canon-70d-video-review","status":"publish","type":"post","link":"https:\/\/www.uwphotographyguide.com\/canon-70d-video-review\/","title":{"rendered":"Canon 70D Review for Underwater Video"},"content":{"rendered":"<p><strong>When Canon first announced the 70D<\/strong>, it seemed like a standard upgrade with minor improvements from the 60D but with one difference \u2013 the new Dual Pixel CMOS AF technology. I was excited to learn that the new sensor would allow the use of phase detection autofocus in live view mode instead of the contrast detection system currently in use. Not only is this is a huge advantage for videographers who use live view, but also an improvement on the camera\u2019s autofocus for still shooters.<\/p>\n<p>So what does this mean for underwater photographers and videographers? Keep reading to see why this camera rocks, and why I expect it to be a prelude to what we\u2019ll being seeing in future Canon DSLRs (7D Mk II, etc).&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h1>Key Features<\/h1>\n<ul>\n<li style=\"margin-left: 24pt;\">\n<p>20.2 megapixel APS-C CMOS sensor and DIGIC 5+<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>19 point cross-type AF System and 7 fps shooting<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Dual Pixel CMOS AF technology<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Instant sharing and remote control with Wi-Fi<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>ISO 12800 (H:25600)<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Vari-angle 7.7cm ClearView II LCD touch screen<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Intelligent viewfinder<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Full-HD movies<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>*UHS-I card required for maximum burst duration<\/p>\n<\/li>\n<li style=\"margin-left: 24pt;\">\n<p>Full range of underwater housings, ports &amp; accessories<\/p>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p class=\"rtecenter\"><img decoding=\"async\" class=\" size-full wp-image-12030\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_review.jpg\" style=\"text-align: center; width: 250px; height: 200px;\" width=\"360\" height=\"288\" srcset=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_review.jpg 360w, https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_review-300x240.jpg 300w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h1>Autofocus Basics<\/h1>\n<p>Modern DSLRs use an advanced phase detection autofocus system when shooting through the viewfinder, which provides fast and accurate focus at many different AF points. When light enters the lens it is bounced off a mirror and through two sensors on opposite sides of the lens before meeting on the image sensor. This happens for each AF point! The photo is in focus when both of the images are precisely overlaid. If the images do not match up, the camera knows exactly how far front focused or back focused it is and immediately adjusts the lens in one smooth movement. Voila, fast autofocus.<\/p>\n<p>Before the Canon 70D, DSLR video shooters (who use live view) did not benefit from phase detection autofocus, since DSLR LCD displays use a simpler contrast detection AF system. With this system, the camera detects contrast to focus, and adjusts the lens back and forth until the correct position (focus) is achieved. This is much slower than phase-detect autofocus.<\/p>\n<p>The Canon 70D is the first camera to use the fast phase detection AF in live view mode. Videographers can now happily rely on fast, accurate and smooth autofocus when shooting video!<\/p>\n<p class=\"rtecenter\"><img decoding=\"async\" class=\" size-full wp-image-12031\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_back.jpg\" style=\"text-align: center; width: 360px; height: 288px;\" width=\"360\" height=\"288\" srcset=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_back.jpg 360w, https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/canon_70d_back-300x240.jpg 300w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h1>Lightning-Fast Autofocus<\/h1>\n<p>Autofocus on the Canon 70D is extremely fast when shooting stills. After diving the 70D with my Canon 100mm 2.8L macro lens on the 70D followed by the same lens on my 5D Mk III, I could see the difference. The autofocus is simply faster and the focusing is smoother, even in darker underwater shooting conditions.<\/p>\n<p>The 70D\u2019s fast autofocus can be attributed to Canon\u2019s Dual-Pixel CMOS sensor, which delivers fast sensor-based autofocus. The new sensor has two photodiodes on each pixel that are read independently for phase detection autofocus and then together to produce the final image. This creates highly accurate AF without compromising on image quality. To quote Canon\u2019s website:<\/p>\n<p><em>Unlike other methods of sensor-based autofocus, which allocate either autofocus or imaging functions to pixels on the sensor, the pixels on the EOS 70D\u2019s CMOS sensor can be used as imaging pixels and phase detection AF pixels. As a result, no additional imaging processing is required around pixels dedicated for AF, which ensures both quick acquisition of focus and maximum image quality.*<\/em><\/p>\n<p>Cool? Definitely!<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h1>Filming Underwater Video<\/h1>\n<p>The Canon 70D offers a variety of recording sizes for underwater video. Amateurs will generally want to shoot at a recording size of 1280&#215;720 (HD) in order to save memory space, create ease of editing and easily upload to sites like Facebook, YouTube and Vimeo. Advanced shooters with powerful computers will want to try out the 1920&#215;1080 (Full HD) recording along with All-I compression for best editing and post production.<\/p>\n<p>Autofocus is where the 70D excels when shooting underwater video. The phase detection autofocus in live view delivers reliable focusing even in low light. When combined with the proper autofocus mode (+Tracking, Flexi-Zone \u2013 Multi and Flexi-Zone \u2013 Single) the diver can guide the AF to keep sharp focus on the right part of the frame. The record start \/ stop button is conveniently placed, however the button or lever will be different depending on the underwater housing.<\/p>\n<p>&nbsp;<\/p>\n<p><em><strong>Canon 70D Sample Underwater Video:<\/strong><\/em><\/p>\n<p><iframe frameborder=\"0\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/R72RP4o5_Jg?list=UUawyWXe_TUX7ChgcGvvWcgQ\" width=\"560\">This browser does not support the iframe element.<\/iframe><\/p>\n<h1>&nbsp;<\/h1>\n<h1>Underwater Housings<\/h1>\n<p>&nbsp;<\/p>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\"><img decoding=\"async\" class=\" size-full wp-image-12032\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/ikelite_70D_frontport_150.jpg\" style=\"border: 0px; margin-right: auto; width: 150px; height: 93px; margin-left: auto; display: block;\" width=\"150\" height=\"93\" \/><\/p>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">&nbsp;<\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\"><a href=\"\/ikelite-70D-underwater-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Ikelite 70D Housing&nbsp;Details<\/a><\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\"><a href=\"http:\/\/www.bluewaterphotostore.com\/ikelite-canon-70D-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Buy Ikelite 70D Housing<\/a><\/h3>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\">&nbsp;<\/p>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">&nbsp;<\/p>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\"><img decoding=\"async\" class=\" size-full wp-image-12033\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/nauticam_70d_housing_150.jpg\" style=\"border: 0px; margin-right: auto; width: 150px; height: 111px; margin-left: auto; display: block;\" width=\"150\" height=\"111\" \/><\/p>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">&nbsp;<\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\"><a href=\"\/nauticam-canon-70d-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Nauticam NA-70D Housing Details<\/a><\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\"><a href=\"http:\/\/www.bluewaterphotostore.com\/Nauticam-Canon-70D-Housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px;\">Buy Nauticam NA-70D Housing<\/a><\/h3>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\">&nbsp;<\/p>\n<div style=\"margin: 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">&nbsp;<\/div>\n<div style=\"margin: 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">&nbsp;<\/div>\n<div style=\"margin: 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px;\">\n<p style=\"margin: 1em 0px; padding: 0px;\"><img decoding=\"async\" class=\" size-full wp-image-12034\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/aquaticaA70D_front2_150.jpg\" style=\"border: 0px; margin-right: auto; width: 150px; height: 99px; margin-left: auto; display: block;\" width=\"150\" height=\"99\" \/><\/p>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px;\">&nbsp;<\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; text-align: center;\"><a href=\"\/aquatica-a70d-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Aquatica A70D Housing&nbsp;Details<\/a><\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; text-align: center;\"><a href=\"http:\/\/www.bluewaterphotostore.com\/Aquatica-Canon-70D\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Buy Aquatica A70D Housing<\/a><\/h3>\n<div style=\"margin: 0px; padding: 0px; text-align: center;\">&nbsp;<\/div>\n<div style=\"margin: 0px; padding: 0px;\">&nbsp;<\/div>\n<div style=\"margin: 0px; padding: 0px;\">&nbsp;<\/div>\n<div style=\"margin: 0px; padding: 0px;\">\n<p style=\"margin: 1em 0px; padding: 0px;\"><img decoding=\"async\" class=\" size-full wp-image-12035\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/sea-sea-canon-70d_150.jpg\" style=\"border: 0px; margin-right: auto; width: 150px; height: 92px; margin-left: auto; display: block;\" width=\"150\" height=\"92\" \/><\/p>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px;\">&nbsp;<\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; text-align: center;\"><a href=\"\/sea-and-sea-mdx-70d-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Sea &amp; Sea MDX-70D Housing&nbsp;Details<\/a><\/h3>\n<h3 style=\"margin: 0px 0px 0.5em; padding: 0px; font-size: 14px; text-align: center;\"><a href=\"http:\/\/www.bluewaterphotostore.com\/Sea-and-Sea-canon-70d-housing\" target=\"_blank\" style=\"margin: 0px; padding: 0px; text-decoration: none;\">Buy Sea &amp; Sea MDX-70D Housing<\/a><\/h3>\n<div style=\"margin: 0px; padding: 0px; text-align: center;\">&nbsp;<\/div>\n<\/div>\n<\/div>\n<p style=\"margin: 1em 0px; padding: 0px; color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; text-align: center;\">&nbsp;<\/p>\n<p><img decoding=\"async\" class=\" size-full wp-image-12036\" src=\"https:\/\/www.uwphotographyguide.com\/wp-content\/uploads\/2014\/05\/RECSEA_RDH-C70D-sm.jpg\" style=\"color: #000000; font-family: Arial, Helvetica, Verdana, 'Bitstream Vera Sans', sans-serif; line-height: 18px; border: 0px; margin-right: auto; width: 150px; height: 107px; margin-left: auto; display: block;\" width=\"200\" height=\"142\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><a href=\"http:\/\/www.bluewaterphotostore.com\/recsea-70D-housing\" target=\"_blank\">Buy Recsea Housing for Canon 70D<\/a><\/h3>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h1>Conclusion<\/h1>\n<p>The Canon 70D is a great mid-range DSLR for those interested in Canon. The camera has many cool features like WiFi, vari-angle touch screen, and a 20.2 megapixel sensor, but the real selling point is the fast and reliable autofocus for video. This enables beginner videographers to capture high-quality shots without relying on manual focus. This technology is a game-changer and even with the older autofocus sensor of the 7D (only 19 AF points), the camera is a fantastic option for underwater shooters.<\/p>\n<p>&nbsp;<\/p>\n<p>* Reference: &nbsp;<a href=\"http:\/\/cpn.canon-europe.com\/content\/education\/technical\/eos_70d_technology.do\">http:\/\/cpn.canon-europe.com\/content\/education\/technical\/eos_70d_technology.do<\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Further Reading<\/h3>\n<ul>\n<li>\n<h3 style=\"text-align: left;\"><a href=\"\/canon-100mm-macro-lens-underwater-photos\" target=\"_blank\">Canon 100mm Macro Lens Review<\/a><\/h3>\n<\/li>\n<li>\n<h3 style=\"text-align: left;\"><a href=\"\/10-underwater-video-tips\">10 Tips for Shooting Underwater Video<\/a><\/h3>\n<\/li>\n<li>\n<h3><a href=\"\/best-underwater-video-editing-tips\">5 Best Underwater Video Editing Tips<\/a><\/h3>\n<\/li>\n<li>\n<h3><a href=\"\/single-strobe-positioning\">Shooting with a Single Strobe<\/a><\/h3>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>When Canon first announced the 70D, it seemed like a standard upgrade with minor improvements from the 60D but with [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":12029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[1],"tags":[],"vocabulary_11":[],"vocabulary_3":[],"vocabulary_5":[],"vocabulary_9":[],"vocabulary_6":[],"vocabulary_10":[],"vocabulary_13":[],"vocabulary_16":[],"vocabulary_4":[],"vocabulary_14":[],"vocabulary_15":[],"vocabulary_7":[],"vocabulary_1":[19],"vocabulary_12":[],"vocabulary_2":[],"vocabulary_17":[],"vocabulary_18":[],"vocabulary_8":[],"class_list":["post-12037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","vocabulary_1-camera-reviews"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - 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