280mm Apo f4

[Csacwp]

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I have an uncoded 280mm Apo f/4. To use this on the SL with the in camera lens profile, do I need the R-L adapter, or would an aftermarket adapter work? Will I have to get the lens 6-bit coded?

[jaapv]

6-bit coding is for M lenses exclusively, so it does not apply to the R 280/4.0 APO. If you want to use it with an in-camera lens profile you will need a ROM lens and the Leica L-R adapter. However, the only thing that  a profile will do is add the focal length to the EXIF, as there is no conceivable correction that could be done otherwise.

I would use a Novoflex adapter. Either LEM-LER to fit to an M adapter, or a one-step L-R adapter.

[Csacwp]

Good to know. Given the weight of this lens, would there be a risk stacking two adapters together? Also, is there a risk of vignetting?

[Csacwp]

What type of tripod bracket should I use with this lens? Is it OK to mount it on a tripod only from one point (the lens), or do I need to get a bracket that links the adapter tripod mount to the lens tripod mount?

[helged]

The 280mm f4 APO can be safely and steadily mounted on a tripod by the lens' in-build tripod mount. No problem at all (I have a 10 cm long Arca-Swiss plate mounted onto the tripod mount). Regarding vignetting, see here. Stacked R-M+M-L adapters are ok, but not the best way to go regarding vignetting. Leica's (single) R-L adapter is better. But least vignetting I get when I use the Novoflex R-L adapter. More info about stacked adapters in another thread.

[Csacwp]

Thanks for the info!

[Donzo98]

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6-bit coding is for M lenses exclusively, so it does not apply to the R 280/4.0 APO. If you want to use it with an in-camera lens profile you will need a ROM lens and the Leica L-R adapter. However, the only thing that  a profile will do is add the focal length to the EXIF, as there is no conceivable correction that could be done otherwise.

I would use a Novoflex adapter. Either LEM-LER to fit to an M adapter, or a one-step L-R adapter.

 

 

I was thinking of getting an 80 ROM to use on my SL. I need an adapter though.

 

Seems like the Leica R to L is really a waste of money if all it adds is EXIF.

 

Is that really the only benefit??

[ramarren]

I was thinking of getting an 80 ROM to use on my SL. I need an adapter though.

 

Seems like the Leica R to L is really a waste of money if all it adds is EXIF.

 

Is that really the only benefit??

 

 

With a ROM lens, the R-L adapter will automate the assignment of the correct lens profile to the captured exposures and transfer the EXIF data automatically. With the two adapter stack ( M Adapter L fitted with R Adapter M), you have to assign the lens profile manually to get the corrections and the EXIF data. You can't get the lens profiles and EXIF data with a third party adapter. 

 

For long tele lenses and high magnification macro work (implying a lot of lens extension) the two adapter stack is not ideal and causes vignetting. That's when the R Adapter L is the better choice. I would certainly want one of those to use with the 280mm. Since with the 280mm, lens correction profiles are of very small importance, the Novoflex adapter will work as well; you just give up the EXIF data. 

 

A Summilux-R 80mm f/1.4 is a very different lens compared to the APO-Telyt-R 280mm f/4. The 280 is one of the finest long tele lenses ever made (yet barely a hair better performing than the native APO-Vario-Elmarit-SL 90-280mm) and doesn't need much correction in any case. The Summilux-R 80mm is a superb lens too, but can certainly use a little correction compared to the 280, particularly when wide open. So I would not want to use it without lens profiles applied, and that means either the two-adapter stack or the R Adapter L, and preferably the latter with a ROM lens for better automation and less potential vignetting. 

 

(Frankly, with the new Summicron-SL 75mm f/2 lens about to become available for the SL, I would wait and go for that instead of the 'Lux 80/1.4 unless it was the specific rendering qualities of the R lens that you were after...)

Edited February 12, 2018 by ramarren