{"id":18329,"date":"2015-12-29T20:07:26","date_gmt":"2015-12-30T01:07:26","guid":{"rendered":"https:\/\/nuxx.net\/blog\/?p=18329"},"modified":"2015-12-29T20:07:26","modified_gmt":"2015-12-30T01:07:26","slug":"canon-20d-err-99-resolved-by-new-battery","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2015\/12\/29\/canon-20d-err-99-resolved-by-new-battery\/","title":{"rendered":"Canon 20D Err 99 Resolved by New Battery"},"content":{"rendered":"<p><a href=\"https:\/\/nuxx.net\/gallery\/v\/random_stuff\/IMG_20151229_194824.jpg.html?g2_imageViewsIndex=2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"Err 99 on a Canon 20D, resolved by replacing the dying battery.\" src=\"https:\/\/nuxx.net\/gallery\/d\/109604-2\/IMG_20151229_194824.jpg\" alt=\"\" width=\"640\" height=\"480\" \/><\/a><\/p>\n<p>I&#8217;ve been using my reliable <a href=\"https:\/\/en.wikipedia.org\/wiki\/Canon_EOS_20D\">Canon 20D<\/a>\u00a0for a while (11 years?), frequently\u00a0employing a <a href=\"http:\/\/www.tokinalens.com\/tokina\/products\/atxpro\/atxm100afprod\/\">Tokina AF 100mm F2.8<\/a>\u00a0macro lens for detail work. This is one of my favorite lenses and is great for bringing out detail I wouldn&#8217;t be able to see with the naked eye, but around six months ago I began\u00a0occasionally receiving the generic &#8220;Err 99&#8221; when trying to use the lens.\u00a0My other lenses (a Canon <a href=\"http:\/\/shop.usa.canon.com\/shop\/en\/catalog\/ef-24-70mm-f-28l-ii-usm\">EF 24-70mm f\/2.8L<\/a> and <a href=\"http:\/\/shop.usa.canon.com\/shop\/en\/catalog\/ef-50mm-f-18-ii\">EF 50mm f\/1.8 II<\/a>\u00a0both worked fine, so I figured the problem was with the lens.<\/p>\n<p>Turns out it had a surprising (and cheap) solution: the batteries.<\/p>\n<p>When\u00a0the problem originally manifested itself as a simple error that&#8217;d only occasionally happen, I would then turn the camera off and on and try again, and usually the lens would work. It also appeared correlated with the aperture\u00a0used, so I figured the lens was failing; perhaps the iris was binding at some point. Last week I found that the error was occurring more frequently, and would be coupled with a low battery indicator that only appeared after turning the camera back on.<\/p>\n<p>Since I was using the original two batteries I ordered two new ones via Amazon (<a href=\"http:\/\/www.amazon.com\/gp\/product\/B000BNY64C\">STK&#8217;s Canon BP-511 2200mAh Battery, 2 Pack<\/a>\u00a0for $24.99) and they arrived today. Once charged up I tried them with the Tokina lens and it&#8217;s now working great. I&#8217;m\u00a0still able to reliably reproduce the issue with the older batteries, so a solution has been found.<\/p>\n<p>Apparently the Canon lenses use a bit less power, or perhaps are more tolerant of lower voltages. Either way, I&#8217;m glad everything is working well. I might even think about\u00a0getting a new camera body&#8230; Although I&#8217;ll probably wait until this one dies.\u00a0I must have balanced use pretty evenly across the batteries too, because they both show the issue to the same degree&#8230;\u00a0What&#8217;d normally be good just confused things.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve been using my reliable Canon 20D\u00a0for a while (11 years?), frequently\u00a0employing a Tokina AF 100mm F2.8\u00a0macro lens for detail work. This is one of&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/nuxx.net\/blog\/2015\/12\/29\/canon-20d-err-99-resolved-by-new-battery\/\">Continue reading<span class=\"screen-reader-text\">Canon 20D Err 99 Resolved by New Battery<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-18329","post","type-post","status-publish","format-standard","hentry","category-electronics","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18329","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=18329"}],"version-history":[{"count":1,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18329\/revisions"}],"predecessor-version":[{"id":18330,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18329\/revisions\/18330"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=18329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=18329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=18329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}