800mm lens with a 2x teleconverter?

Started May 11, 2012 | Discussions thread
Chato
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Re: 800mm lens with a 2x - ok for moon
In reply to LensBeginner, May 12, 2012

LensBeginner wrote:

I wish I knew how to choose the best TC!

The pricier, the better.

Good TC usually have a low multiplier (x1.4, x1.7, I'd definitely steer clear of 3x ones), avoid cheap ones built with 4-elements and go for 7-elements.

Best TCs are usually the ones that are specifically matched to a particular lens, for obvious reasons, but there you lose flexibility, which is one of the main advantages of having a TC in the first place.

While no expert, I have owned and compared the quality of the Sigma vs Nikon 2x TC's. The Nikon is defiintely better.

Dave
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"Everyone who has ever lived, has lived in Modern Times"

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