Sigma 500/4.5 + Pentax 1.4X HD AW (10 imgs)

Started 7 months ago | Discussions thread
Forum ProPosts: 26,132
Re: Pete...
In reply to SanMat, 7 months ago

SanMat wrote:

Interesting - I'm surprised you would actually get better image quality with stacked converters, with the additional glass surfaces that are introduced.  I guess that would mean that - standing on its own - the sigma 300 f/2.8 is significantly sharper than the 500 f/4.5....?

Not to beat a dead horse - and your comments essentially answer this - but how have you found AF speed and image quality with the sigma 300 f/2.8 and just a single one of those new Pentax converters? I'm assuming it's quite good, if stacked converters can produce good results.

IMO and in a word, "Excellent".


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