CL telephoto options

[tritentrue]

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Having a recently-orphaned Canon 300mm f/4 IS USM in the dry cabinet, I decided to try to adapt it to my CL.  The EOS-LM adapter arrived yesterday, bridging the lens (and 1.4X EF Extender) to the M-Adapter-L (so as to retain use of the dial for magnification); and the rain let up this morning long enough for me to put it to some known targets and a couple of unknown critters.  

I expected it to be optically a notch or two below the Nikon 300PF+1.4X, which I used on the CL in the past.  But to my surprise, it's very much on par in terms of acuity, and actually better on backlit and underlit subjects.  And where the 300PF was a bit too light for inertia to aid stabilization, the Canon 300mm lens hits the sweet spot for being just heavy enough (1190g) to be fairly stable for hand-held shooting on the CL, without making the setup front-heavy.

AOV is roughly 630mm on the CL, with the added benefit of having a ~450mm AOV at f/4 available if the speed is needed.  Attached is a shot of a Pacific Swallow in dim overcast lighting (literally seconds before the rain started again) with the CL/300mm f/4 IS USM/EF Extender 1.4X/EOS-LM adapter/M-Adapter-L:

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Edited September 14, 2020 by tritentrue
Grammar correction

[Michael Markey]

55 minutes ago, tritentrue said:

Having a recently-orphaned Canon 300mm f/4 IS USM in the dry cabinet, I decided to try to adapt it to my CL.  The EOS-LM adapter arrived yesterday, bridging the lens (and 1.4X EF Extender) to the M-Adapter-L (so as to retain use of the dial for magnification); and the rain let up this morning long enough for me to put it to some known targets and a couple of unknown critters.  

I expected it to be optically a notch or two below the Nikon 300PF+1.4X, which I used on the CL in the past.  But to my surprise, it's very much on par in terms of acuity, and actually better on backlit and underlit subjects.  And where the 300PF was a bit too light for inertia to aid stabilization, the Canon 300mm lens hits the sweet spot for being just heavy enough (1190g) to be fairly stable for hand-held shooting on the CL, without making the setup front-heavy.

AOV is roughly 630mm on the CL, with the added benefit of having a ~450mm AOV at f/4 available if the speed is needed.  Attached is a shot of a Pacific Swallow in dim overcast lighting (literally seconds before the rain started again) with the CL/300mm f/4 IS USM/EF Extender 1.4X/EOS-LM adapter/M-Adapter-L:

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That`s a lovely shot .Which make of adapter did you decide to go for  ?

[tritentrue]

13 minutes ago, Michael Markey said:

That`s a lovely shot .Which make of adapter did you decide to go for  ?

Thank you.

It's the only EOS to Leica M one I could find, from K&F Concept (www.kentfaith.com).