Redge Edge: How often do you experience it?

[Nitnaros]

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We had already a couple of extensive "red edge" threads, but I would like to ask the following:

 

- On which of your lenses on the M9 have you yourself experienced the problem?

- For a given lens, how often do you run into the problem?

- Has anybody used the Leica 18mm on the M9 w/o the red edge problem?

 

I am asking since so far on my M9 and the 28-cron and 24-elmarit, I have not observed the red edge problem. Granted, I have not been shooting too often with both lenses (so far mostly with the 35-lux), hence I would like to hear about the experience of other folks here.

 

Best - Peter

[adan]

1. My 21 pre-ASPH (well, and the C/V 15mm - but since that isn't a Leica lens, and is an extreme focal length, I don't get too upset about that).

 

I did experience it with borrowed 28, 24 and 21 Elmarit ASPHs when I tried them several months ago, but have not had a chance to try those lenses with the new firmware.

 

No visible problem with 35 through 135 lenses (not suprisingly).

 

2. Anytime the colors are fairly light and subtle - especially non-red colors or neutrals (blue sky, notably. Snow, gray sidewalks). If the left side is in deep shadow, or contains reds, oranges, browns or blacks, the red shift is probably there but disguised and not a problem.

 

Sometimes a "busy" composition on the left will hide it - but not always.

 

3. No experience.

[UliWer]

Did anybody try an uncoded lens (without UV/IR-Filters) and lens-detection "off"?

 

On the M8 you had no red edges even with the 3,8/18 where they are visible most of the times if the lens detection is on - though of course you had the magenta from omitting the IR-filter and some vignetting, which wasn't too bad though.

[k-hawinkler]

Well, I am not sure.

 

First image: M9 Elmarit-M 21mm f/2.8 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-03-06-M9-Elmarit/768503135_qZkZ5-O.jpg

Second image: M9 Elmarit-M 28mm f/2.8 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-19-31-M9-Elmarit/768503473_RZ48b-O.jpg

Third image: M9 Summilux-M 50mm f/1.4 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-47-59-M9-Summilux/768503904_5Paac-O.jpg

 

These were shot with the previous Firmware 1.002.

Exif data is here: 2010-01-19 Snowy Backyard - winklers' Photos

 

In which image do you see a red edge, 1 or 2 or 3?

 

K-H.

 

PS: I know there shouldn't be any in 3.

[Nitnaros]

Well, I am not sure.

 

First image: M9 Elmarit-M 21mm f/2.8 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-03-06-M9-Elmarit/768503135_qZkZ5-O.jpg

Second image: M9 Elmarit-M 28mm f/2.8 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-19-31-M9-Elmarit/768503473_RZ48b-O.jpg

Third image: M9 Summilux-M 50mm f/1.4 ASPH. http://winklers.smugmug.com/KHW/Pics-by-Date/2010-01-19-Snowy-Backyard/2010-01-1909-47-59-M9-Summilux/768503904_5Paac-O.jpg

 

.

 

I think (unscientifically, from looking at those images): 1 = 2 >> 3

 

Peter

[k-hawinkler]

I think (unscientifically, from looking at those images): 1 = 2 >> 3

 

Peter

 

Peter, Thanks. That's my impression too, K-H.

[250swb]

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I think its difficult to say because the overall colour balance looks wrong (and they may be underexposed which exaggerates red edge) on my monitor anyway, but I'd guess by the increased magenta tint that 1 and 2 have red edge (and you have a fair bit of dust on your sensor as well) ;-)

 

Steve

[k-hawinkler]

I think its difficult to say because the overall colour balance looks wrong (and they may be underexposed which exaggerates red edge) on my monitor anyway, but I'd guess by the increased magenta tint that 1 and 2 have red edge (and you have a fair bit of dust on your sensor as well) ;-)

 

Steve

 

Steve,

 

Many thanks. You are right, I may have underexposed by about a stop or so.

With regards to the dust I am not so sure. There may be some dust there.

However, in my experience though, at 100% magnification dust typically shows up at round blobs.

Here the spots are more of an irregular shape and mostly smaller. It was still snowing very lightly when I took the photographs and may have recorded some snowflakes.

 

Here are a couple of images with M9 and 75mm APO-Summicron-M at a later date when it was snowing more heavily:

 

http://winklers.smugmug.com/KHW/Pics-by-Date/2010-03-14-It-Snows/2010-03-1416-53-47-M9-75mm-f2/810454670_rNsxf-O.jpg

http://winklers.smugmug.com/KHW/Pics-by-Date/2010-03-14-It-Snows/2010-03-1416-31-15-M9-75mm-f2/810454987_Yrw5H-O.jpg

 

Thanks again, K-H.

[meino]

We had already a couple of extensive "red edge" threads, but I would like to ask the following:

 

- On which of your lenses on the M9 have you yourself experienced the problem?

- For a given lens, how often do you run into the problem?

- Has anybody used the Leica 18mm on the M9 w/o the red edge problem?

 

I am asking since so far on my M9 and the 28-cron and 24-elmarit, I have not observed the red edge problem. Granted, I have not been shooting too often with both lenses (so far mostly with the 35-lux), hence I would like to hear about the experience of other folks here.

 

Best - Peter

I have experienced the red edge only on my Zeiss 18mm distagon. on all of my other lenses (24mm Elmarit, 35mm summicron (IV), 50mm summicron & 90mm Summicron asph I don't have the red edge issue.

[lct]

...In which image do you see a red edge, 1 or 2 or 3?...

Assuming the snow was actually white, i don't see magenta but overall red cast in the first 2 images. Adjusting it does not show significant red edge on my monitor. Good enough for me.

[chris_tribble]

I've noticed it on the Zeiss 18, 21 elmarit pre-asph and on the 28 cron - but nearly always in cases where the image is underexposed and it's a pretty poor image anyway. I've never had to do any post processing to clear red edge from a good image. I should stress here that the vast majority of the work I've done with the M8 has been based on lenses in the range 28-90. In fact I've not used the 21 on the M9 for critical work since I've had the camera (though I used it a lot on the M8, where the problem wasn't apparent to any extent ...)

 

General message? DON'T PANIC - for most users I would hold that the M9 does an exceptionally good job.

[AlanJW]

I have not seen red edge. My wides are WATE and Zeiss 25mm. Nothing of concern to me there; my other work is with 35 Summicron, 50 Summilux and 90 Elmarit.

 

I have not done white walls or snowbanks. I only shoot white(or sort of white) walls when I want to do a custom WB or as a quick way to check for sensor dust/dirt. For ordinary shooting for me red edge is not an issue. I am not denying that it exists or that for some it is a problem. Just not for me.