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Old May 24, 2007, 5:44 PM   #21
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It's hard to say - more elements usually mean better control/correction, but the flip side is more glass usually entails less contrast :evil:

-> Hence to overcome it, a brighter light is a must otherwise the resulting MTF could be quite deceiving...
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Old May 25, 2007, 5:50 AM   #22
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squirl033 wrote:
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... I'd love to be able to use a 2x TC on it, but from everything I've read, 2x converters just cost too much in terms of image quality and light, so I've decided a 1.4x will have to do.
As another option you may look into complimenting your 1.4x with a 2x Sigma... (with even more elements)
-> Again it all depends on overcoming the lost of contrast - This image was captured with that 2x TC: http://www.stevesforums.com/forums/v...mp;forum_id=11
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