{"id":664,"date":"2011-04-30T14:48:43","date_gmt":"2011-04-30T13:48:43","guid":{"rendered":"http:\/\/www.edwardsd.co.uk\/work\/blog\/2011\/04\/30\/camera-shutter-aperture-dof\/"},"modified":"2011-05-03T09:38:40","modified_gmt":"2011-05-03T08:38:40","slug":"camera-shutter-aperture-dof","status":"publish","type":"post","link":"https:\/\/www.edwardsd.co.uk\/work\/2011\/04\/camera-shutter-aperture-dof\/","title":{"rendered":"Camera, Shutter, Aperture & DOF"},"content":{"rendered":"
\n

SHUTTER<\/strong><\/p>\n

The Cameras shutter controls the length of time the sensor is exposed to\u00a0light.<\/p>\n

Shutter speeds normally operate somewhere between 30 seconds and 1\/100 of a\u00a0second.<\/p>\n

Fast shutter speeds (over\u00a01\/250 sec) freeze action.<\/p>\n

Slow\u00a0shutter speeds (1 sec \u2013 30 secs) make photography possible in very\u00a0low light.<\/p>\n

For hand held photography\u00a0a minimum shutter speed of about 1\/30 sec is required, below this some\u00a0means of steadying the camera is required.<\/p>\n

APERTURE<\/strong><\/p>\n

The lens\u00a0aperture controls the quantity of light reaching the cameras\u00a0sensor.<\/p>\n

In dim or gloomy conditions\u00a0the sensor needs a bigger aperture to let in more\u00a0light.<\/p>\n

In bright conditions a smaller\u00a0aperture is required.<\/p>\n

Aperture is\u00a0measured in f-stop numbers.<\/p>\n

The\u00a0normal range of apertures is from f\/2.8 \u2013 f\/22<\/p>\n

F\/2.8 is a BIG aperture letting in more light (in =
\ngloomy conditions)<\/p>\n

F\/22 is a SMALL\u00a0aperture letting in less light (in bright conditions)<\/p>\n

DEPTH OF\u00a0FIELD<\/strong><\/p>\n

Changing the aperture will also\u00a0control the depth of field.<\/p>\n

A big aperture (f\/2.8 \u2013 f\/5.6) will give a small depth of field. This\u00a0effect will be increased by using a zoom lens, the longer the zoom the\u00a0shorter the depth of field.<\/p>\n

A small\u00a0aperture (f\/16 \u2013 f\/22) will give a large depth of field. This\u00a0effect will be increased by using a wide angle lens.<\/p>\n

Use big\u00a0apertures (f\/2.8 \u2013 f\/5.5) for portraits and still life where you\u00a0want to blur the background.<\/p>\n

Use\u00a0small apertures (f\/16 \u2013 f\/22) for landscapes ar any photo where\u00a0you want foreground, mid & background sharp.<\/p>\n

SCENE MODES<\/strong><\/p>\n

Your cameras scene modes will\u00a0select shutter and aperture for you depending on the scene mode\u00a0selected.<\/p>\n

If you select\u00a0\u2018portrait\u2019 or \u2018macro\u2019 (close-up), the camera\u00a0will assume a short depth of field is best and choose a big\u00a0aperture.<\/p>\n

If you select\u00a0\u2018sport\u2019 the camera will choose a fast shutter speed to\u00a0freeze the action.<\/p>\n

Selecting\u00a0\u2018landscape\u2019 mode will give a setting with a larger depth of\u00a0field.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

SHUTTER The Cameras shutter controls the length of time the sensor is exposed to\u00a0light. Shutter speeds normally operate somewhere between 30 seconds and 1\/100 of a\u00a0second. Fast shutter speeds (over\u00a01\/250 sec) freeze action. Slow\u00a0shutter speeds (1 sec \u2013 30 secs) make photography possible in very\u00a0low light. For hand held photography\u00a0a minimum shutter speed of about […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[13],"tags":[],"class_list":["post-664","post","type-post","status-publish","format-standard","hentry","category-guide"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pOPt8-aI","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/comments?post=664"}],"version-history":[{"count":0,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/664\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/media?parent=664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/categories?post=664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/tags?post=664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}