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Voigtlander 15mm or WATE on M9


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I'm not sure that you needed to send your M9 back because there was an asymmetric "Italian flag"pattern with the very deep-set CV15 lens. Lots of people have seen this. It's interesting that the pattern is red on one side, greenish on the other, strongest in the corners, but it is not a sign of sensor misalignment. It is apparently some interaction between the demosaicing algorithm in the M9 which contributes the asymmetry, and the glancing angle at which light rays from the CV15 strike the edges of the picture. It may be fixable in firmware, but sounds like major changes are required. Look for threads involving the CV15 and Cornerfix on this forum to see other examples.

 

scott

 

You are probably right but last time I had and issue with my first M8 I ended up having to send both. Since I have no time to shoot properly and no imminent trips plus I have my M8.2 I just decided to spare some time just in case.

 

The result of both the CV15mm and CV12mm is indeed awful on the M9. I doubt it will be ever aded to the M9 firmware. Too bad, the CV 15 took really great pictures for the money on my M8.2.

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I hope this helps;

 

Both pictures taken with an M8.2 at f5,6 and 1/500. AWB on and not correction except conversion to JPEG from DNG in LightRoom. Excuse the poor weather and UGLY motif but it is great to test wide angles at a distance...

 

CV 15mm

 

WATE at 16mm

 

The result on the M8.2. is very close as you can see. Once I get my M9 back I will do the same test but you will see a considerable difference between both lenses. If you plan on using the CV15 with the M9 you will need to retouch the pictures with software recommended in other post on this thread. Or shoot your wide angles B&W...

 

Hope this helps.

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I hope this helps;

 

Both pictures taken with an M8.2 at f5,6 and 1/500. AWB on and not correction except conversion to JPEG from DNG in LightRoom. Excuse the poor weather and UGLY motif but it is great to test wide angles at a distance...

 

CV 15mm

 

WATE at 16mm

 

The result on the M8.2. is very close as you can see. Once I get my M9 back I will do the same test but you will see a considerable difference between both lenses. If you plan on using the CV15 with the M9 you will need to retouch the pictures with software recommended in other post on this thread. Or shoot your wide angles B&W...

 

Hope this helps.

 

 

Forgot to say that the CV15 is the new model with the M-mount...

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hi there!

on my website http://web.me.com/dims.mac/dims/home.html at the page "M9" there are samples taken with Wate @ 18/21.

On my flickr http://www.flickr.com/photos/space4/ set M9, some more samples and more to come in the future.

I am now using the Tri-Elmar a lot, also @ 16mm. With the newest firmware I don't see color or sharpness problems at corners.

I like the lens and for my current field of application I find it very very useful. The viewfinder is indeed a bit bulky, and makes the camera heavier, and fiddling with Fl selection on both menu and finder, plus focus distance, then focus in RF then composing again in viewfinder... less immediate than using the old beloved 50 Wetzlar. But it is indeed a fantastic lens for serious landscape/architecture/interior photography.

Personally, having tested the 18 Super Elmar sufficiently, I found the difference between WATE @ 18 and the Super Elmar only lies in color contrast, a bit punchier and Ektachrome like in the Super Elmar, but for my style of shooting not a must have. So the advantage of three lenses in one is still a major one.

I had the CV15 and I found the lens a jewel for the price it costs. But the WATE is a different lens, with inherent qualities that made me prefer the latter to the former. At the moment I am using a sample lent by Leica's distributor in Italy, for extensive testing on M9, also lent. And I like it a lot.

Hope that helps!

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  • 2 weeks later...
Does one has some CV 15mm (the new one, that's M-mount with RF focus) shots on either the M8 or M9?

 

This is a quick test shot M9 and the new CV15mm, manually set as 16mm Tri-Elmar, stopped down to F8.

 

Notice the vignetting and red left side. Image is VERY sharp though......

 

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I am now using the Tri-Elmar a lot, also @ 16mm. With the newest firmware I don't see color or sharpness problems at corners.

I like the lens and for my current field of application I find it very very useful. The viewfinder is indeed a bit bulky, and makes the camera heavier, and fiddling with Fl selection on both menu and finder, plus focus distance, then focus in RF then composing again in viewfinder... less immediate than using the old beloved 50 Wetzlar.

 

This is important and useful - When you are using the WATE, changing the lens selection in the selection menu does NOTHING except for putting the focal length in the exif information.

There is no difference to the lens correction.

So, if you can live with the exif saying 16mm all the time, then you can set lens selection to auto - this means you only have to change the focal length in the finder.

This isn't a guess - it was confirmed on a trip to Solms.

:D

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Jono, I assume this applies to the M9 only; with the M8 and an IR filter, the in-camera correction must compensate for the changing angle of view and the changing level of red vignetting from the filter.

 

This suggests, doesn't it, that the WATE exit pupil doesn't move as you change focal length, only the entrance pupil.

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Jono, I assume this applies to the M9 only; with the M8 and an IR filter, the in-camera correction must compensate for the changing angle of view and the changing level of red vignetting from the filter.

 

This suggests, doesn't it, that the WATE exit pupil doesn't move as you change focal length, only the entrance pupil.

 

HI Mark

I assume so too. . but I didn't ask about that.

I just thought it worth mentioning that many people talk about fiddling around in the lens menus when it isn't actually necessary.

 

I hope you're well

all the best

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OK thanks but what you're showing are M8 pics here. How does the CV 15 behave on M9? Doesn't it vignette a lot?

 

Hi There

It vignettes a lot, and you will get a red tint down the left hand side.

The only sensible way to use the CV15 on the M9 is using cornerfix - really not worth bothering otherwise, but excellent if you DO use it.

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Even with this:

match Technical Services - Thumbs Up CSEP-4

?

 

If not, it is shame from my perspective and needs...

Any idea why we can't connect flash to M9 using flash SOCKET, and ONLY hot shoe?

No reason at all. But Leica won't do it ... for inscrutable reasons of their own.

 

Now there is a way. It is called the Nissin SC-01. It is a 'system flash cable' just like the Nikon SC cables, but (a) useable with Canon flashes too, and (B) with an extra hot shoe on top of the connector that goes into the camera shoe. You can stick a viewfinder in that cable shoe. I must say that it would look pretty absurd with a Frankenfinder in it, but a single-length finder works OK. That's what I bought it for.

 

You cannot find a flash that covers 15mm as far as I know, but bounce flash does work just fine. I use this technique with my Zeiss 18mm Distagon.

 

The old man from the Age of Flash Powder

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This is a shot with the Voigtlander 15mm, manual set as 16mm Tri-Elmar. The red edges are removed with Cornerfix (very simple).

 

4328591612_96a3d3f814.jpg

 

Bigger size (and more images with the CV) here:

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