{"id":415,"date":"2018-07-08T11:02:45","date_gmt":"2018-07-08T11:02:45","guid":{"rendered":"http:\/\/www.smudgeonthelens.co.uk\/?p=415"},"modified":"2019-11-21T09:32:31","modified_gmt":"2019-11-21T09:32:31","slug":"aperature-challenge-aperature-priority","status":"publish","type":"post","link":"https:\/\/www.smudgeonthelens.co.uk\/?p=415","title":{"rendered":"Aperature Challenge – Aperature Priority"},"content":{"rendered":"

I’ve started work on my challenge, trying to demonstrate with photos what happens with Aperature Priority (Av on my Canon camera).
\nVery briefly, when in Av mode, you as the user set the aperature while the camera takes care of the rest.\u00a0 In these examples in this post, I set the ISO to 100, but you can leave it to auto ISO mode if you wish.\u00a0 It was a bright sunny day, so I also set the White Balance to Daylight.
\nI’ve taken a series of images to try and demonstrate what happens when the aperature changes from a large hole, letting in lots of light, to a small hole letting in a small amount of light.
\n
\nSo in general, if you increase the exposure by one\u00a0f stop\u00a0<\/strong>(by that, confusingly it means make the number smaller!) you will double the exposure.
\nHopefully you can also see from the examples what I mean by depth of field.\u00a0 This generally means what parts of the photo are within focus, and obviously depending on what you’re trying to achieve, depends on whether it’s acceptable.
\nIn my rather terrible subject matter pics, I wanted the foreground in focus and the background to change from blurred to sharper.\u00a0 It works great with flowers pics, if you have a crisp flower and a nicely blurred background.\u00a0 My table below should summarise what happens in the series of photos.<\/p>\n\n\n\n\n\n\n\n\n\n
ISO setting<\/strong><\/td>\nF Stop<\/strong><\/td>\nShutter Speed<\/strong><\/td>\nImpact<\/strong><\/td>\n<\/tr>\n
100<\/td>\n2.8<\/td>\n1\/2500<\/td>\nLarge aperature.\u00a0 Small depth of field = blurry background<\/td>\n<\/tr>\n
100<\/td>\n5<\/td>\n1\/800<\/td>\n<\/td>\n<\/tr>\n
100<\/td>\n8<\/td>\n1\/250<\/td>\n<\/td>\n<\/tr>\n
100<\/td>\n11<\/td>\n1\/160<\/td>\n<\/td>\n<\/tr>\n
100<\/td>\n18<\/td>\n1\/60<\/td>\n<\/td>\n<\/tr>\n
100<\/td>\n22<\/td>\n1\/60<\/td>\nDarker image.\u00a0 Smaller aperature.\u00a0 Larger depth of field.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

This was just a brief little forray into my Aperature challenge<\/strong><\/em> to prove I’ve not forgotten it.\u00a0 I’ll be back!<\/p>\n","protected":false},"excerpt":{"rendered":"

I’ve started work on my challenge, trying to demonstrate with photos what happens with Aperature Priority (Av on my Canon camera). …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,6,4],"tags":[7,12],"_links":{"self":[{"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/415"}],"collection":[{"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=415"}],"version-history":[{"count":1,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions"}],"predecessor-version":[{"id":1350,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions\/1350"}],"wp:attachment":[{"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.smudgeonthelens.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}