Canon EF 400mm f/2.8L IS II USM

[gmcphotographics]

Here's a new thread for the users of the mighty Canon EF 400mm f2.8 L IS II USM.
According to Canon's MFT charts this is the sharpest of the Canon 400mm / f2.8 lenses and it's legendary ability to use teleconverters is very warranted.
Here are the MFT's from Canon for the native lens and the 1.4x TC.

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Specifications	Metric
Weight:	8.49 lbs / (3850g)
Size:	6.4 x 13.5" / (163 x 343mm)
Filter Size	Drop in 52mm
Introduction:	2011
Min Focus Distance:	106.3" / (2700mm)
Magnification Factor:	0.17x

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[gmcphotographics]

Taken at Tebay Service station on the M6 of all places....well...that's my Christmas card shot this year taken care of!

 

[gmcphotographics]

Sunrise from my Kitchen open window.

 

[gmcphotographics]

Here's the MFT chart using a 2x TC mk III:

 

[gmcphotographics]

The above MFT chart (with a 2x tc) is out resolving the RF 100-500 LIS natively wide open. That’s how impressively sharp the EF 400/2.8 II L is.

 

[gmcphotographics]

Here's an image of an Avocet taht I shot a few weeks back at Slimbridge, UK

 

[gmcphotographics]

A few tits and Robins from my last visit to Slimbridge, the Blue Tit was shot wide open at 400mm in very low light. The robin was shot using a 2X TC:
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[gmcphotographics]

And some ducks too, there were also shot at Slimbridge uinsg a 2x TC.

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[gmcphotographics]

I've just returned from three weeks in Sri Lanka and this lens native or with a 1.4x TC has served me flawlessly. Even with a 2x TC it impressed me massively. It's tac sharp and delivers amazing imagery on my R6ii.

 

[gmcphotographics]

 

[gmcphotographics]

These shot were with a 2x TC, 800mm @f5.6

 

[gmcphotographics]

An example of a EF 400mm f2.8 L Is mkII with a 2xTC mk III near to MFD.

 

[gmcphotographics]

Another recent example photograph of using a 2x TC mkIII: