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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone Photography - Technical Topic
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<blockquote data-quote="Dihusky" data-source="post: 455650" data-attributes="member: 10304"><p>Moving on, so what's your 'standard lens'?</p><p></p><p>You have a Canon EOS 200d and this has an APSC sensor which is 22.3 x 14.9mm and 24.2mp, great resolution and can capture superb shots. What's your standard lens? Working on the diagonal your standard focal length is 27mm so the 18-55mm lens gives you a double width wide angle and a 2x telephoto which in the older times would be considered a 'Portrait Lens'</p><p></p><p>What happens when you have a play in the menu with the 'Aspect Ratio'?</p><p></p><p>Your full frame aspect ratio is 1:1.49, modern TVs have a 16:9 aspect ratio which is 1:1.77 so if you dial in 16:9, which a lot of people do, you are effectively cutting off the top and bottom of your imager and only using 22.3 x 12.6mm.</p><p></p><p>When photographing gems aspect ratio is irrelevant as you want to capture the best image with the biggest number of pixels for cropping later, so shooting in 16:9 is not the best idea.</p></blockquote><p></p>
[QUOTE="Dihusky, post: 455650, member: 10304"] Moving on, so what's your 'standard lens'? You have a Canon EOS 200d and this has an APSC sensor which is 22.3 x 14.9mm and 24.2mp, great resolution and can capture superb shots. What's your standard lens? Working on the diagonal your standard focal length is 27mm so the 18-55mm lens gives you a double width wide angle and a 2x telephoto which in the older times would be considered a 'Portrait Lens' What happens when you have a play in the menu with the 'Aspect Ratio'? Your full frame aspect ratio is 1:1.49, modern TVs have a 16:9 aspect ratio which is 1:1.77 so if you dial in 16:9, which a lot of people do, you are effectively cutting off the top and bottom of your imager and only using 22.3 x 12.6mm. When photographing gems aspect ratio is irrelevant as you want to capture the best image with the biggest number of pixels for cropping later, so shooting in 16:9 is not the best idea. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone Photography - Technical Topic
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