Green Cast in JPGs

[jtbthree]

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I am shooting with an M8.2 which I just bought used, and a Zeiss 1.5 lens. I have the camera set to record in DNG and JPG fine, 10 megapixels, standard saturation and standard everything else. The DNGs look fine, but the corresponding JPGs have a bad green cast to them, so much so that bright yellow appears as light green. In addition, when I set the camera to shoot in B&W, the DNG is still in color and the JPG is in B&W; is this normal? BTW, I have a Leica UV/IR filter on the lens. Thanks, John

[ho_co]

Sorry, John, I can't help with the green cast, but I do know that DNGs are always in color since as "RAW" files they record all the data the sensor saw.

[jaapv]

Yes The B&W thing is normal, and check your color balance settings for the cast you are seeing. Under what light have you been shooting? If it was fluorescent all bets are off.

[CharlesL]

Ken Rockwell has a useful article about Leica colors and how he tweaks them at

LEICA M9 Color Rendition

 

The digital Leica green-yellow phenomenon seems to range from a matter of preference to ugly problem. Rockwell has his own, almost anti-Leica color preference, but his technical discussion is helpful.

 

As for B&W, the color DNG file gives you the option of how to make a B&W in post-processing. For example, with the program Picture Window Pro you can vary the color filter used to reduce to B&W, imparting one or another kind of emphasis and contrast to the different colors in the image. Alternatively, with PWP you can mix the R, G, and B channels in percentages of your choosing.

[CharlesL]

Here is the color image:

 

 

Two black and versions were made using the Picture Window Pro post-processing program.

 

This one used the program's default green filter :

 

 

 

However, PWP lets you filter down to black and white using any color for the filter. This one used a red filter chosen by a click on a spot on the red stalk:

 

 

 

The images were reduced, but were not altered in any other way.