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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: 562894" data-attributes="member: 40735"><p>Your comments are consistent with the consensus on teleconverters in general (aside from 1.4x TCs), let alone stacked converters. That was part of the reason why I was surprised that my shots weren't as dismal as I had expected. However, that might have a lot to do with the fact that I was using a crop sensor, which is somewhat protected from the vignetting and corner-sharpness issues. I also learned first hand why many TCs require f/2.8 teles, given how badly the 200 f/4 with the 52mm objective performed.</p></blockquote><p></p>
[QUOTE="gustafson, post: 562894, member: 40735"] Your comments are consistent with the consensus on teleconverters in general (aside from 1.4x TCs), let alone stacked converters. That was part of the reason why I was surprised that my shots weren't as dismal as I had expected. However, that might have a lot to do with the fact that I was using a crop sensor, which is somewhat protected from the vignetting and corner-sharpness issues. I also learned first hand why many TCs require f/2.8 teles, given how badly the 200 f/4 with the 52mm objective performed. [/QUOTE]
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Observations on using stacked TCs to get to 400mm
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