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Switching back to R5... help needed

Started Jan 30, 2021 | Discussions thread
GatanoII Contributing Member • Posts: 526
Re: Switching back to R5... help needed

RDM5546 wrote:

I know the RF 100-500 is a magnificent wildlife lens but I use wildlike mainly the EF 100-400mm Mk II with the 1.4X and 2X Canon Mk III TCs that I had before the mirrorless cameras ( 5D Mk IV and 7D mk II). I have the Sigma 150-600 Contemporary with the 1.4X and 2X Sigma TCs as a alternative lens. I like both but the Canon 100-400 II is usually my first choice even though the maximum FL is shorter than the Sigma. The 45MP of the R5 allows for more cropping than my earlier cameras.

I also have the EF 400mmf2.8L IS but is a monster. Do you really have a 200-600/2.8 as this also must be a bigger monster. I have a Sigma 120-300mmf2.8 but use that more for outdoor sports that wildlife because I usually use it with a monopod.

Does the the Sigma 120-300mm works well (resolution/speed) with the 1.4x and 2.x TC and there is any improvement using Canon TC instead of Sigma? I have never seen a comparison of  Canon vs Sigma tele converters with this lens.

 GatanoII's gear list:GatanoII's gear list
Canon EF-S 17-55mm f/2.8 IS USM Canon EF 70-200mm F2.8L IS II USM Tamron SP AF 60mm F2 Di II LD IF Macro Kenko Teleplus MC4 AF 1.4 DGX Kenko Teleplus MC4 AF 2.0 DGX +2 more
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