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24-70mm f/2.8G Can't make stars?
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<blockquote data-quote="hark" data-source="post: 546304" data-attributes="member: 13196"><p>This was shot at 24mm, but if you zoom out to 70mm, the physical diameter of the aperture will change (become larger) even if you shoot at f/14 again. Apertures are smaller in wide angle lenses as opposed to telephotos. They are a ratio to the length of the lens being used. It all has to do with math.</p><p></p><p>To figure it out, take the focal length being used (24mm) and divide it by the f-stop (f/14).</p><p></p><p>24÷14=1.71mm diameter aperture</p><p></p><p>If you zoom out to 70mm, the aperture becomes larger. 70÷14=5mm diameter aperture</p></blockquote><p></p>
[QUOTE="hark, post: 546304, member: 13196"] This was shot at 24mm, but if you zoom out to 70mm, the physical diameter of the aperture will change (become larger) even if you shoot at f/14 again. Apertures are smaller in wide angle lenses as opposed to telephotos. They are a ratio to the length of the lens being used. It all has to do with math. To figure it out, take the focal length being used (24mm) and divide it by the f-stop (f/14). 24÷14=1.71mm diameter aperture If you zoom out to 70mm, the aperture becomes larger. 70÷14=5mm diameter aperture [/QUOTE]
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24-70mm f/2.8G Can't make stars?
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