Voigtlander 12mm f/5.6 on M240

[plewislambert]

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I took this picture today In London after the rain stopped, using the 12mm CV and Cornerfix to deal with the edge vignetting (Pshop could fix it) and slight edge discolouration with noise in the edges as well. Auto exposure; might have been interesting to have re-shot it with a half stop extra light to see whether the noise at the edges would be less...

Philip:)

[StephenPatterson]

More fun with the CV12/5.6 in Beijing...

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[JuanLeon]

How sharp this lens is, maybe compared to Nikon 14-24? Is the vignetting too strong wide open? Any hint would be appreciated as the focal lenght seems quite interesting and there's nothing similar from Leica in this range.

 

 

There is no contest with the Nikon 14-24. Vignetting, sharpness and bulk/weight are on the opposite side of the spectrum.

I bought the lens to have a nice looking small 25mm equivalent on the GF1:

Panasonic GF1 Voigtlander 12mm f/5.6 Photo Gallery by Juan Leon at pbase.com

 

 

 

On a crop sensor you get ride of most vignetting and the lens shines, here with a XPro1:

Fujifilm X-Pro 1 & Voigtlander 12mm f/5.6 Photo Gallery by Juan Leon at pbase.com

 

 

 

On the M240, being so wide, the Vf2 helps a lot with framing. Sometimes I get the pink banding on the corners, but is great in B&W

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[mirekti]

Are the attached photos taken with M240?

[JuanLeon]

Are the attached photos taken with M240?

 

Yes, all but first two are with M240.

[sfuertesb]

Yes, all but first two are with M240.

 

Hello Juan (Hola, acabo de darme de alta, desde Madrid)

 

Have you tried the new FW on your M240?

I've got CZ Distagon 15 2.8 ZM and magenta cast looks very similar to that with your CV 12mm. I code it as TriElmar 16mm, but it seems everyone with superwides are coding as 21mm. I'll try other codings and new FW too and see what happens.

 

I've got several LR5 presets to deal with those casts. I never got Cornerfix to work fine, my fault of course, but inside LR5 my workflow remains the same.

 

Thanks

(un saludo)

[JuanLeon]

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Hello Juan (Hola, acabo de darme de alta, desde Madrid)

 

(Hola sfuertesb, bienvenido) Welcome to the forum

 

Have you tried the new FW on your M240?

 

Yes, since day one. So far auto WB is better than before, but regarding magenta corners with CV12 I´ve seen no difference at all: in some images is bad, in others is worst

 

I´ve got CZ Distagon 15 2.8 ZM and magenta cast looks very similar to that with your CV 12mm. I code it as TriElmar 16mm, but it seems everyone with superwides are coding as 21mm. I'll try other codings and new FW too and see what happens.

 

I've got several LR5 presets to deal with those casts. I never got Cornerfix to work fine, my fault of course, but inside LR5 my workflow remains the same.

 

I have found, as other members pointed out, the 21mm coding as the better one in this regard. Didn´t like Cornerfix too.

 

Thanks

(un saludo)

 

 

You´re welcome

 

This picture is with the new firmware, but as I said before, don´t know if it had not been better or worst with the previous firmware:

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[flyalf]

...

I've got CZ Distagon 15 2.8 ZM and magenta cast looks very similar to that with your CV 12mm. I code it as TriElmar 16mm, but it seems everyone with superwides are coding as 21mm. I'll try other codings and new FW too and see what happens.

 

I've got several LR5 presets to deal with those casts. I never got Cornerfix to work fine, my fault of course, but inside LR5 my workflow remains the same.

 

Thanks

(un saludo)

 

Hi,

 

The WATE is the lens that needs less corrections, so coding as this gives less correction. A better option is to use the 21mm profile.

 

Btw; Im curious about your Cornerfix experiences. What was the things that did not work out for you? Did you create profile with un-coded lens? Profiles for differnet apertures? Sorry for asking a lot, but this might help understanding how Cornerfix works. UI have used CF with CV 15mm and Zeiss 18mm on M9 with great results.

[sfuertesb]

Hi,

 

The WATE is the lens that needs less corrections, so coding as this gives less correction. A better option is to use the 21mm profile.

 

Btw; Im curious about your Cornerfix experiences. What was the things that did not work out for you? Did you create profile with un-coded lens? Profiles for differnet apertures? Sorry for asking a lot, but this might help understanding how Cornerfix works. UI have used CF with CV 15mm and Zeiss 18mm on M9 with great results.

 

I shot several whitewall photos with and without center filter and none worked as a template with the couple of real photos I wanted to correct. I would have tried harder with more combos until everything was ok, but inside LR5 with some minor presets I easily got rid of magenta casts with previous FW and TriElmar coded. Magenta is blue and red, same as lack of green, so with a minor tint green either with graduated filter or pencil, cast is off. Every photo needed its intensity, some had almost no magenta, some had more cast and not exactly the same in every corner/border. I.E, the sky had magenta harder on the side where the sun was, etc...so I wonder how cornerfix can work with every photo with some templates. I don't use it, so I'm no expert at all with it. Maybe magenta was there equally spread but some combination of green grass or so looked like it wasn't there, etc...

Now with new FW and coding as 21 2.8 it's almost gone (got to try with more lighting conditions, but to my eyes magenta is gone (anyway, mi LR5 presets are there if needed).

I think that with distagon designs, while not perfect like reflex lenses, it's easier to fight these casts (biogons are harder, I think)

[sfuertesb]

JuanLeon, while vignette is very noticeable (and easy to solve if needed), magenta cast is very subtle. Opening in photoshop you can see it, maybe, on clouds on the right side, where you can find -8 to -10 or so in green compared to R and B. Sky surrounding that cloud is blue...

Ideal would be adding some green tint cloud by cloud so as not to affect the sky...but values are so minimal that I'm not sure if that magenta would be seen in a print or a good calibrated monitor (which I don't have...yet)

[JuanLeon]

JuanLeon, while vignette is very noticeable (and easy to solve if needed), magenta cast is very subtle. Opening in photoshop you can see it, maybe, on clouds on the right side, where you can find -8 to -10 or so in green compared to R and B. Sky surrounding that cloud is blue...

Ideal would be adding some green tint cloud by cloud so as not to affect the sky...but values are so minimal that I'm not sure if that magenta would be seen in a print or a good calibrated monitor (which I don't have...yet)

 

I add some vignetting to the sky to bring back the rainbow colors, so not all of it is off the lens.

Thanks for your tip for resolving the magenta cast, but lazy as I am, I usually take care of it cropping the right side of the image.