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Magenta night lights

setuporg

By setuporg
in Leica M11

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MyLeicaWorld

MyLeicaWorld

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I think we have to accept this situation is the biggest problem of M11 and seems can not be solved with a firmware .. two years passed since the release .. and we still have this issue .. same lighting, same scene but two different outputs from same brand with different models; M10 and M11 .. always saying M10 has the most reliable metering system and the sensor I’ve ever seen .. just my experience ..

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setuporg

setuporg

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5 minutes ago, bcaslis said:

This is silly, it's not the sensor it's chromatic aberration or the processing. Blaming this on the M11 is nonsense.

The shot is exported from FOTOS without any processing, that is, whatever processing FOTOS does was the only one.  I'll get to cropping it eventually.:). @Photoworks has similar magenta lights above.  My lens was the 1.0 Noct which is probably not the most APO-ish:).  Will see what happens with the 35/50 APOs some other night when I take the ferry.  My favorite way to get to the city.  When you go home, you can have a beer and see the city disappear into the sunset!

One question is whether the M11 sensor makes the CA more pronounced.  That would require testing alongside the M10R.  The photobag layout for the next ferry trip takes shape...

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jaapv

jaapv

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2 hours ago, MyLeicaWorld said:

Same here .. with M10 I had no problems like this ..

No surprise. The  photosites will inevitably have more raster and crosstalk errors because they are smaller and you are viewing the file at  more than double the size at 100%. See my previous  post. 

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bcaslis

bcaslis

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3 hours ago, setuporg said:

The shot is exported from FOTOS without any processing, that is, whatever processing FOTOS does was the only one.  I'll get to cropping it eventually.:). @Photoworks has similar magenta lights above.  My lens was the 1.0 Noct which is probably not the most APO-ish:).  Will see what happens with the 35/50 APOs some other night when I take the ferry.  My favorite way to get to the city.  When you go home, you can have a beer and see the city disappear into the sunset!

One question is whether the M11 sensor makes the CA more pronounced.  That would require testing alongside the M10R.  The photobag layout for the next ferry trip takes shape...

The magenta is the default profile which is magenta oriented. If you pull into Lightroom or Photoshop and apply any other profile any magenta tint will be gone. An M11 is not a point and shoot, if you don't process you will not get the best quality. A sensor cannot make chromatic aberration worse, it's totally a lens artifact where the Noctilux is probably the worst possible lens for this.

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anbucco

anbucco

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The Noctilux f/ 1.0 was not calculated for digital cameras, so it might be prone to CA. The higher the sensor resolution is, this might happen. That might be also the reason why the M10 might be less sensitive for CA’s when using this lens. I’m quite sure this does not appear when using modern lenses.

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jaapv

jaapv

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12 minutes ago, anbucco said:

The Noctilux f/ 1.0 was not calculated for digital cameras, so it might be prone to CA. The higher the sensor resolution is, this might happen. That might be also the reason why the M10 might be less sensitive for CA’s when using this lens. I’m quite sure this does not appear when using modern lenses.

Try a Summilux 50 asph. A lens that has been described as Apochromatic. It is notorious for purple branches against a white sky. However I cannot understand all the excitement; de  Defringe  is part of even the most basic postprocessing program. 

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Robert Blanko

Robert Blanko

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M10R + 50 APO, I don't see any purple fringing.

I never saw such type of purple fringing as reported by Setuporg above in my photos, neither with my M10R nor with Nikon Z7, D850, Df, Leica Q2. But I don't own an M11 though...

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jaapv

jaapv

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I even see it on an M9. I think that you are not photographing subjects that are prone to trigger purple fringing. Try slightly out of focus branches against a bright white sky. Every digital camera will fringe, the better the lens, the more it will be. It is certainly not M11 specific. In fact it is not even brand specific  Here are a few links out of hundreds  

https://www.dpreview.com/forums/thread/3834568

https://www.dpreview.com/forums/thread/3834568

https://www.l-camera-forum.com/topic/325274-purple-fringing-on-lux-35f14-m10r-is-this-normal/page/2/

https://www.dpreview.com/forums/thread/3764062

 

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don daniel

don daniel

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vor 14 Minuten schrieb Robert Blanko:

M10R + 50 APO, I don't see any purple fringing.

I never saw such type of purple fringing as reported by Setuporg above in my photos, neither with my M10R nor with Nikon Z7, D850, Df, Leica Q2. But I don't own an M11 though...

And you won't see any purple fringing when you attach the Apo-Summicron 50mm to the M11. But you will see a magenta cast if it's not a night shot with a lot of black. The former is a problem of the lens, the latter of the white balance of the M11.

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jaapv

jaapv

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10 minutes ago, jakontil said:

I have been using my noctilux 0.95 way back, only up until M11 i started noticing the purple fringing is somehow more exaggerated to the point i quite notice it

Post #25. It is more noticeable on high resolution sensors as you look at the image at a higher magnification and because the smaller photosites on the sensor are more prone to crosstalk and raster errors. High resolution does not come without a price.  Personally I would go to medium format if I ever needed more than 24 MP. 

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don daniel

don daniel

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I have never photographed with a Noctilux, but I have photographed with the Summiluxes 28mm, 35mm and 50mm. With hard contrasts and an open aperture, I also had purple fringe with the M10. The Summilux 28mm is the worst. Purple Fringe even at aperture 5.6. The lens creates a wonderful cinematic look, better than the fixed Summilux on the Q. But the Purple Fringe is really annoying. Even a Summicron 28mm has to be stopped down for critical shots if you don't want to eliminate the problem in post-processing. But it's clear that the 35mm and 50mm Apo-Summicrons are pretty much free of it. I used to own the Apo 50mm and now have the Apo 35mm. With the Apo 35mm, the problem is extremely reduced, even on the M11, and can only be guessed at more than actually seen in the enlarged view of water droplets against the light.

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jaapv

jaapv

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Setting colour balance and exposure, contrast, clarity, etc is routine, nobody regards this as specific errors.  Why not a a tweak on the defringe slider in the same quick actions? The whole issue is hardly worth talking about in that scenario. 

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LocalHero1953

LocalHero1953

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I don't have a M11, but I have often seen magenta colour fringing like this on spot highlights as for the OP, and for tree branches against the sky. SL, SL2-S, Q2....... I haven't noted whether it is with particular lenses, because it has such an obvious cause and is easily corrected, which I do without another thought.

That's why the Defringe tool exists - it's not an addition just for the M11

Edited by LocalHero1953
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jakontil

jakontil

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5 hours ago, jaapv said:

Post #25. It is more noticeable on high resolution sensors as you look at the image at a higher magnification and because the smaller photosites on the sensor are more prone to crosstalk and raster errors. High resolution does not come without a price.  Personally I would go to medium format if I ever needed more than 24 MP. 

hi jaap thanks for explaining, I must have missed the high resolutions sensors thingy.. however, I used M10R with a 40mpx sensor, even so it wasn't anything bugging regarding to purple fringing, and my M11 is always set to 36mpx, and I thought it was on the same ballpark

or may be, it's just simply a 60mpx downsized in body to 36mpx

regardless, I dont find it quite intriguing as may be im getting used to and it happens only with the noctilux 0.95. even less so with the reissue 1.2

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