{"id":7243,"date":"2009-06-24T04:41:56","date_gmt":"2009-06-24T12:41:56","guid":{"rendered":"http:\/\/moosepeterson.com\/blog\/?p=7243"},"modified":"2009-06-24T04:41:56","modified_gmt":"2009-06-24T12:41:56","slug":"exposure","status":"publish","type":"post","link":"https:\/\/www.moosepeterson.com\/blog\/exposure\/","title":{"rendered":"Exposure"},"content":{"rendered":"<p>Exposure can be one of the most difficult aspects in         \tphotography to master. Even if you&#8217;re fortunate enough to own an         \tF5 with its RGB meter, you still must understand         \texposure. Meters only give advice, <em>you <\/em>must know if it&#8217;s good         \tor bad advice. Further more, being a photographer you must be able to         \tcommunicate what you see to others. This requires a firm understanding         \tof exposure and exposure compensation.<\/p>\n<p align=\"justify\">Coming to terms with exposure compensation requires         \tunderstanding basic ambient exposure first. Ambient exposure is made         \tof a combination of shutter speed and aperture (assuming no flash is         \tin use). Using basic daylight (called the sunny 16 rule by some) your         \tbase exposure can be quickly calculated by combining f\/16 and the reciprocal         \tof the ISO in use (this is a sunny day exposure). For example, with         \tISO 100 film, your exposure should be 1\/125 at f\/16, or any combination         \tthat equals the same value (i.e. 1\/60 at f\/22 or 1\/250 at f\/11). This         \tby the way, is an easy way to determine on your own if your camera meter         \tis providing accurate readings. With your hand fully lit, take a meter         \treading off it and it should equal basic daylight (within 1\/3 stop).<\/p>\n<p align=\"justify\">Now every meter, spot, center-weighted and even matrix,         \tis balanced to render a scene 18% gray (for the new F5&#8217;s RGB meter,         \tthis doesn&#8217;t hold true). I&#8217;m sure you&#8217;ve heard that phrase before, but         \tprobably don&#8217;t understand what relevance it has to your photography.         \tThe most sited example to explain this is photographing a white wall;         \ta camera meter will expose it to turn out 18% gray (a light gray tone).         \tMost don&#8217;t bother to say that when photographing a black wall, the meter         \twill try to turn it 18% gray as well, resulting in a flat black photograph.<\/p>\n<p align=\"justify\">If you looked at your camera meter while it&#8217;s pointed         \tat the white wall, you&#8217;d see it isn&#8217;t giving you a reading equivalent         \tto basic daylight. Rather, it&#8217;s probably reading f\/22, equal to one         \tstop underexposed. With a working knowledge and understanding of basic         \tdaylight, you would see the meter reading and understand you need to         \tcompensate by overexposing by one stop. This would make the white wall         \twhite.<\/p>\n<p align=\"justify\">This is a great theorem to have tucked away in your         \thead, but all practicality precludes looking at the meter, comparing         \tit to basic daylight and then compensating constantly when photographing         \twildlife. When that snow white Great Egret lands in dark blue water         \tright in front of you, you might not have time to look at the meter         \tand compare it to basic daylight. The same holds true if you&#8217;re photographing         \ta brown bear fishing in the white water of a river. You must have a         \tworking set of compensation values in your head that you can instantly         \tset your camera to without going through all the labor of calculating         \tthem mentally.<\/p>\n<p align=\"justify\">Experience is by far the best teacher for learning when         \tand by how much to use exposure compensation. The drawback is all the         \tgreat photographs lost in the process of building up your library of         \texperiences. There is a way you can &#8220;jump start&#8221; your library of knowledge-using         \tmy infamous <a href=\"http:\/\/www.moosepeterson.com\/techtips\/teddybear.html\">Teddy Bears<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Exposure can be one of the most difficult aspects in photography to master. Even if you&#8217;re fortunate enough to own an F5 with its RGB meter, you still must understand [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","sync_status":"","episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","castos_file_data":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","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},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[93],"tags":[],"dipi_cpt_category":[],"series":[],"class_list":["post-7243","post","type-post","status-publish","format-standard","hentry","category-technical-tips"],"episode_featured_image":false,"episode_player_image":"https:\/\/i0.wp.com\/www.moosepeterson.com\/blog\/wp-content\/uploads\/2018\/06\/Podcast.jpg?fit=1500%2C1500&quality=89&ssl=1","download_link":"","player_link":"","audio_player":false,"episode_data":{"playerMode":"dark","subscribeUrls":{"amazon":{"key":"amazon","url":"https:\/\/www.audible.com\/pd\/Podcast\/B08JJQC1GR?ref=a_pd_item-n_c0_bc&pf_rd_p=1da7ab30-c785-4a0e-a160-4a7e7077b353&pf_rd_r=EEDMYHQM3DZ05FPRTHMJ","label":"Amazon","class":"amazon","icon":"amazon.png"},"apple_podcasts":{"key":"apple_podcasts","url":"","label":"Apple Podcasts","class":"apple_podcasts","icon":"apple-podcasts.png"},"rss":{"key":"rss","url":"","label":"RSS","class":"rss","icon":"rss.png"},"spotify":{"key":"spotify","url":"https:\/\/open.spotify.com\/show\/2fRA9VaVfSdQMKf1ipxr0tipxr0t","label":"Spotify","class":"spotify","icon":"spotify.png"},"itunes":{"key":"itunes","url":"https:\/\/podcasts.apple.com\/us\/podcast\/moose-podcast\/id1107405746","label":"iTunes","class":"itunes","icon":"itunes.png"}},"rssFeedUrl":"https:\/\/www.moosepeterson.com\/blog\/feed\/podcast\/moose-podcast","embedCode":"<blockquote class=\"wp-embedded-content\" data-secret=\"cnWxXfs2rB\"><a href=\"https:\/\/www.moosepeterson.com\/blog\/exposure\/\">Exposure<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.moosepeterson.com\/blog\/exposure\/embed\/#?secret=cnWxXfs2rB\" width=\"500\" height=\"350\" title=\"&#8220;Exposure&#8221; &#8212; Moose Peterson&#039;s Website\" data-secret=\"cnWxXfs2rB\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! 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