M mount with MFT adaptor and lens, how good is it?

[Creamy]

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Would the Leica CL body work well (or at all) with the

Panasonic LUMIX H-X1025E LEICA DG Vario-Summilux 10-25 mm

https://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-camera-lenses/lumix-g-lenses/h-x1025.html

Or will there be significant quality loss? Are £25 adaptors like on Amazon good?

Don't know much about this subject so if anyone does

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[jaapv]

What adapter?  The Leica L mount has a flange distance of 20.00 mm and MFT of 19,25 mm Quite impossible to fit. Different sensor formats too.

The Leica M mount has a register distance of 27,95 mm, which  would bring the lens forward by nearly a cm,  making infinity focus impossible.

[Creamy]

Any adaptor that would work but I see it wont because of sensor formats. That sucks those lenses got the Leica stamp but don't go onto Leica cameras 

[jaapv]

You won't  find an adapter because it is physically impossible  to make one. Those lenses are designed and made by Panasonic for  MFT cameras, and have been certified  by Leica. Sensor format is another thing, but for instance TL lenses  will fit on the SL in crop mode and quite a few M and R lenses work fine on S cameras. A matter of which  angle is covered.

[ramarren]

Creamy, 

Aside from the fact that the Panasonic-Leica lenses are designed for a smaller format AND a shorter mount register, rending them impossible to fit on an L-mount Leica camera, these lenses (like the TL and SL series lenses) are electronically controlled lenses that depend upon the Micro-FourThirds body to lens control protocol to function. They would not work at all on a Leica CL.

Panasonic and Sigma L-mount lenses will work on the CL because of the L-Mount Alliance between Leica and these manufacturers; it shares the lens mount specification and control protocols. The Micro-FourThirds mount lenses made by Panasonic also work on Olympus Micro-FourThirds cameras, and vice-versa, again because the two manufacturers share the lens mount specifics and protocol requirements. 

G

[jaapv]

That is not quite true - an active adapter (if mechanical parameters could be met) can digitally "translate" the different control protocols. That way Canon lenses can function on the SL using the Novoflex adapter, and Sigma did reverse-engineer AF functions on their interchangeable mount lenses in the past.

[ramarren]

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Since no adapter can be made, certainly no "active adapters" have been made. And besides, most of these "active adapters" screw up half the time anyway or prove unusable in practice due to performance reasons. 

Just because something "could theoretically be done" doesn't mean it's worth mentioning, Jaap. Particularly to someone who is saying "Don't know much about this subject so if anyone does."  

G

[jaapv]

Yes, I said so several times, Godfrey, even in the post you respond to.
I  understand from the forum that the SL-Eos adapter works reasonably well on a number of Canon lenses.