UV/IR CUT Filter for Voigtländer 15mm

[flyboy]

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Hi,

I just bought a Voigtländer Super Wide Heliar 4,5 / 15 mm and want to use it with my M8.

Do you think I must use a UV/IR Cut Filter with a slim mounting to avoid additional vignetting.

Who has made some experience with that combination ?

Brgds

Chris

[dimah]

Hi Chris, I have been using the 15mm for almost two years. With the firmware 2.005 I realizied that for some reason the (cyan) vignetting can be decreased by turning off the lens recognition. I have three sample pictures in "my album". They were all taken without IR cut filter, for I intended them to be b/w. But the "raw" colors (untreated in these samples) aren't that ugly in my perception...

[Robinyuill]

Hi there. I have used the lens, screw fit with a leica lens ring for a while now and it performs great. It is even better since I used a UV/IR filter and milled and painted a code on the mount. The filter is held in place reversed with a bit of blue tack. The M8 asks which lens it is and I identify it as a 21mm and the cyan cast is removed. Great little lens. If you need I will put a photo on the site. I also have a spare milled mount if you want to try it. Regards Robin.

[farnz]

Flyboy,

 

there are two versions of this lens available: a screw mount (LTM) version and an M-mount version. I've used the LTM mount version and echo what Robinyuill said above although he might not have mentioned that he's coded his lens as a WATE, that it takes 39 mm filters and that you need to turn the filter back-to-front to prevent it from touching the lens's front element.

 

I've never used the M-mount version but it's larger and I believe it takes a Series 7(?) sized filter.

 

The LTM version's E39 filter definitely doesn't vignette but I'm not sure about the M-mount version.

 

Pete.

[ho_co]

Chris--

John Milich makes a filter holder for the screw-mount 15mm that takes a Leica 39mm filter. Search the forum for the name "Milich" or check the personal profile for "jlm." He probably does one as well for the bayonet version of the lens

 

 

Remember, you need the UV/IR filter only with the M8; and because of the M8's crop factor, you can cover a big part of the 15's field of view without infringing on what the camera sees.

 

In other words, no, you don't need a thin filter for the M8 because the edge rays are blocked anyway.

[flyboy]

Hi Folks,

 

thank you all for your inputs. I ordered the second version with the M-Mount. It will take a 52mm Filter and so I ordered a "normal" sized filter mount.

 

BRGDS

Chris

[deirdre]

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I ordered the second version with the M-Mount. It will take a 52mm Filter and so I ordered a "normal" sized filter mount.

 

It does. I forgot to to put mine on one day, so I have a "before" shot and an "after" shot. If I'd been chimping, I'd have messed up fewer shots….

[jaapv]

That site is a slow loader!

[deirdre]

Funny, it wasn't slow for me, but I figure it's just because Kilauea is a slow volcano.

[jaapv]

Anyway, it is an excellent before/after IR filter comparison.

[deirdre]

Thanks! (For those who look at the pics and see no volcano, it is of a set that also contains volcano pics taken with my M8, though some photos in that set are taken with a Panasonic GF1.)

[biglouis]

I've had the screw mount version and I now own the M-mount version, which I've coded as a WATE. A UV/IR filter does not reduce vignetting - it stops blacks turning out to be magenta. You need to code the lens to reduce the cyan drift vignetting.

 

You can 'push' an inverted 39mm UV/IR filter onto the screw mount lens, people often wind tape around the screw threads to stop scratches.

 

Of course, CV 15 v2 has a thread and takes a 52mm UV/IR filter - mine is a B&W.

 

As a package, the v2 is mechanically and operationally a thing of beauty - and it takes good captures as well.

 

LouisB

[ishkra]

I've a CV 15mm II version with B+W filter 52mm. You just need to code it as a WATE and you'll get great pictures!