Canon EF 100-400mm f4.5-5.6L IS ll

[will139]

I am considering a purchase of this lens. It will be new. Does anyone have any experience with it? And if so your thoughts. Thanks. Cameras I would be using are a Canon 6D Mark ll and a Eos 90D. Possible use of a 1.4 and 2x extender.

 

[ruley74]

Yep, had it with my canon gear. It's a stellar lens, sharp, quick AF etc. I used it with a canon 1.4 on my EOS R, the AF slowed a little but the IQ was still very good.

 

[nokk]

Yep, had it with my canon gear. It's a stellar lens, sharp, quick AF etc. I used it with a canon 1.4 on my EOS R, the AF slowed a little but the IQ was still very good.

ditto. i too had luck using it with the 1.4x tc on the 7d mk ii, though af was slower and didn't lock in the focus as often as it did without the tc. edge sharpness was still good on the full frame 6d, though i mainly used this lens with the 7d mk ii.

 

[Robin]

I began using Canon and the mk1 100-400 ,I now have the mk11 it has proved to be very sharp at the long end at least equalling the 400 5.6 if not better.
I found it awkward to manually focus while hand holding as the focus ring is very close to camera body,but obviously with auto focus this is not an issue .
AF is slower with a 1.4 extender as expected but is still quite useable.
I personally would not use a 2x extender although I have no experience with one.
The lens is very well made and robust (don’t ask) you would not go wrong in purchasing this lensIMO.

 

[Icarus]

I had it before I switched to Nikon. It is a superlative lens.

 

[Steve]

I had a brief flirtation with canon a few years back and had that lens - HIGHLY recommend! I really miss it! Super sharp, light, versatile. The whole package.

 

[pkj]

I am considering a purchase of this lens. It will be new. Does anyone have any experience with it? And if so your thoughts. Thanks. Cameras I would be using are a Canon 6D Mark ll and a Eos 90D. Possible use of a 1.4 and 2x extender.

I have this lens and am generally happy if using without Extender. At 300-400mm range lens isn't fast enough for proper wildlife use with Extender. Suggest you consider is purely for up to 400mm with your crop sensor 90D. You should perhaps consider the faster 70-200mm + 1.4x or 2x Extender + crop sensor. This will give you 450-640mm Reach at f3.5-4.0. My friend has this set up. It works well and is hand holdable and lightweight. Hope it helps!

 

[ruley74]

I have this lens and am generally happy if using without Extender. At 300-400mm range lens isn't fast enough for proper wildlife use with Extender. Suggest you consider is purely for up to 400mm with your crop sensor 90D. You should perhaps consider the faster 70-200mm + 1.4x or 2x Extender + crop sensor. This will give you 450-640mm Reach at f3.5-4.0. My friend has this set up. It works well and is hand holdable and lightweight. Hope it helps!

The 70-200 with a 2x gives 400 @F/5.6... on crop 640 FOV... a bare 100-400 nets the same without the 2x IQ drop.

 

[pkj]

Ruley74 is correct. I was mistaken in my initial calculation. Thanks for stepping in to correct, Ruley.