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RF 100-400 vs 2x EF 70-200 F4 on an R6

Started Feb 9, 2022 | Discussions thread
PhotosFlight
PhotosFlight Contributing Member • Posts: 609
Re: RF 100-400 vs 400L 5.6
1

My fine feathered friend finally decided to show up this afternoon.  It was quite overcast.

I set the camera (R6) and then swapped the lenses.  They are both at f 5.6 but for some reason the auto ISO used 8000 for the EF 70-200 f2.8 MII L + 2x TC MIII but used 6400 for the EF 100-400 f 4.5-5.6 MII.    Hand held.  1/2500th.   Both at 400mm

That is the only difference.

These were edited with DXO Photolab.  The settings for the first were applied to the second.  I did use the DXO Deep Prime Denoise.  Heavily cropped!!!

I won't tell you which is which.  I think it is obvious which was shot the 100-400 and which used the 2x TC on the 70-200.  I hope this will not dissuade anyone from using the 2x TC.  In good light it still performs pretty well.  The 100-400 is just a monster lens.

 PhotosFlight's gear list:PhotosFlight's gear list
Canon EOS 30D Canon EOS 50D Canon EOS 7D Mark II Canon 6D Mark II Canon EOS R6 +14 more
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