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Telephoto
Observations on using stacked TCs to get to 400mm
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<blockquote data-quote="gustafson" data-source="post: 563039" data-attributes="member: 40735"><p>Good point, I had not considered the implications of ED and non ED glass. In my setup, CA was an issue in specular reflections, and a minor one at that. However, the biggest drawback is the poor resolution of detail of subjects beyond 50ft. That the TC-16A has a movable element (rare amongst TCs) makes it all the more challenging. I'm hoping to try stacking it with a 1.4x fixed-element TC (yet to be acquired) to see if I can get better performance with distant subjects. </p><p></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="gustafson, post: 563039, member: 40735"] Good point, I had not considered the implications of ED and non ED glass. In my setup, CA was an issue in specular reflections, and a minor one at that. However, the biggest drawback is the poor resolution of detail of subjects beyond 50ft. That the TC-16A has a movable element (rare amongst TCs) makes it all the more challenging. I'm hoping to try stacking it with a 1.4x fixed-element TC (yet to be acquired) to see if I can get better performance with distant subjects. Sent from my iPhone using Tapatalk [/QUOTE]
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Observations on using stacked TCs to get to 400mm
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