arbitrage wrote: technic wrote: arbitrage wrote:
Here are two more from my ongoing 2xTC testing....I will conclude my testing this weekend and decide if I will buy this 2x off of my friend.
In many of your shots with the 300mmPF and 2xTC I see what looks like a lack of contrast, as if there is a thin grayish veil over the picture. They are sharp but most 1.4x and 1.7x TC shots look much better, crisper to me. I can imagine it is difficult to decide, I have compared my own moon shots with 100-400mm and one 1.4xTC or two stacked TC's and although the two TC's provide more detail I'm not sure those shots are 'better'.
Anyway, these are still nice shots and extremely impressive to get 600mm reach from such a small/light package
Yes, lack of contrast, especially micro contrast between each feather is what stands out to me when I view the RAW files. Sharpness is good but microcontrast affects that sharpness. The other issue is AF consistency is lower and in a burst I am down to 7D2 levels sometimes...of course the 7D2 got those results with $10K f/4 primes so this ain't all that bad for a $3K lens and a old version of the 2xTC
I've bought a used 1.7x off the B&S (its in the mail). My friend only wants $100 CDN for the 2x so I might just get it anyways at that price (~$70USD).
$70 is a steal for such a converter; if I owned the 300PF I would buy one just for some more magnification for moon shots ;-)
I really appreciate your reporting on the 300PF and various TC's, it's at the top of my new gear list for this summer (unless Nikon or Canon has a surprise long/macro lens announcement in the very near future).
Feb 23, 2018 at 01:46 PM
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