Weird effect

[jaapv]

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The wisest post of the thread, Luigi

[luigi bertolotti]

The wisest post of the thread, Luigi

 

Thanks and... best whishes to your wife !!!

[mweiner]

Here is more blue under similar indoor_tungsten/outdoor_natural lighting conditions, also just before dinner and interestingly also taken in May (2007). It was May 9 07:52pm to be exact, in a more southerly latitude than Netherlands so the relationship to the sun may have been similar. I had posted it to the M8 First Birthday thread (#255) in the photo forum for inclusion in the anniversary book, and intended to title it "A problem in white balance" tho I thought the effect pleasing as well as interesting. I am almost sure I had a uv-ir filter on my 28 summicron. The exif makes no mention of a uv-ir setting, but the firmware was whatever was current then. I have attached the exif because it give info, esp about color settings, that might be useful to those who know more than I. The image shows a lot of sky which Japp's view doesn't, and there does seem to be a lot of blue in it. In C1 the plain dng looked much more tungsteny with a much higher color temp. I had shot a frame with a whitbal card place just in front of the male subject and used that in C1 to adjust the white balance -- probably producing a similar transformation as Jaap's in camera auto white balance.

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l1005022_exif.txt

[mweiner]

Correction: The picture image was made at _08:30pm_ Central Daylight Time in central Texas. It may also interesting to note since the sky light conditions were rapidly changing that the WhitBal card was shot at 08:39pm, nine minutes later.

[alex7075]

Jaapv, that happened to me too. I always thought about reflections from a cooler source of light somewhere that became blue because of the tungsten WB.

 

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[jaapv]

This is going to introduce another round of M8 bashing: Unsuitable for photographing intimate dinners.:D

Was there an outside lightsource in your shot?

Actually, I think it is a side-effect of the new AWB. It corrects so well for the tungsten that it ignores any blue patches in the shot.

[okram]

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Maybe they will solve this in the next firmware update- it is a real problem.

Which aperture did you use? maybe it is lens coating.

Could be noise, the reflections on the black plates look like chroma noise, heavy noise.

 

It would be best if you send it to Germany, for them to look it up.

 

Obviously something strange and weird going on.

[jaapv]

Here is an example of the camera doing the same thing. Correctly in this case. Electronics cannot solve everything...

 

[jaapv]

Maybe they will solve this in the next firmware update- it is a real problem.

Which aperture did you use? maybe it is lens coating.

Could be noise, the reflections on the black plates look like chroma noise, heavy noise.

 

It would be best if you send it to Germany, for them to look it up.

 

Obviously something strange and weird going on.

 

The aperture is 1.2 or 1.4 I don't think I will send it in for a 1 in 12000 problem...

[papimuzo]

Jaapv

have you emptied the bottle before or after the picture? Because me too I sometimes see blue elephants when using this kind of bottle, but contrary to you, I see them but can't photograph them:D

Sorry, I couldn't resist:rolleyes:

Interesting thread nevertheless...

Cheers.

[okram]

Jaap, I am just teasing you.

 

Cant You see that it is a reflection from the evening sky outside?

On the one of the black plates you can see upper frame of the window, and it makes the border between black and blue.

Probably on the other photos the night is darker/fallen...so there is no reflection.

 

Digital cameras (all, in my opinion) tend to pick up the evening sky blue, while it looks like almost dark to an eye. It is very useful when shooting architecture.

 

 

M

[rwfreund]

Strange,

Jaap, have you noticed that just about the time the blue lights came, the bottle of Genever disappeared.

Actually, I have seen occasional similar results in the case of mixed low temp lighting and some even slight residual daylight, even dusk.

-bob

[photophile]

Jaap:

 

It could also be the fact that your wife was starting to feel blue because you were spending time with your camera again, instead of finalizing the dinner for her verjaardag. Was she outside in the garden? Hope you two enjoyed the evening anyway. Best and many more to the Mrs. Coos

[Daniel Ortego]

Say Jappv,

The photos in this thread look sorta similar to your issue. Note the apparent time of day in the shots that may support the suggested low light theory.

http://www.l-camera-forum.com/leica-forum/leica-m8-forum/54769-weird-reflections.html

Regards,

[luigi bertolotti]

Say Jappv,

The photos in this thread look sorta similar to your issue. Note the apparent time of day in the shots that may support the suggested low light theory.

http://www.l-camera-forum.com/leica-forum/leica-m8-forum/54769-weird-reflections.html

Regards,

 

mmmhhhh... for me, not the same thing... in the quoted thread you see "strips" of color, not AREAS... I give up to tech explanation, but for me is a different effect...

[okram]

PEOPLE: this is NOT an effect!

[jaapv]

Jaap:

 

It could also be the fact that your wife was starting to feel blue because you were spending time with your camera again, instead of finalizing the dinner for her verjaardag. Was she outside in the garden? Hope you two enjoyed the evening anyway. Best and many more to the Mrs. Coos

You have me intrigued - do you happen to have dogs for QC? (ignore if puzzled... )

[AlanG]

Are you putting us on? Why is anyone wondering about this? Why do you think blue sky is blue? Jaap, repeat the same shot later when it is totally dark outside, and your plates won't be blue.

 

Surely you know that evening sky (up to 10,000K) has a much bluer color temperature than incandescent room lights (2800K) or candles (1800K). The shiny plates are reflecting the sky. The windowsill is doing the same plus is receiving some illumination from the sky. Architectural photographers have been using this "effect" for a long time.

 

A lot of other posts have confirmed this. I am just repeating and giving examples.

 

Note the deep blue of the sky in the exterior of this building. See how blue it makes the foreground. On this dining room shot, the candle, floor highlights, bowl and cup are going blue from daylight coming in from windows. (The overall lighting was flash mixed with tungsten so it was around 4000K, but the daylight is much bluer as it was principally from the blue sky and not sunlight.)

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[jaapv]

We're wondering because it was dark outside, overcast and raining... The blue on the highlights is very blown out, way out of proportion...But I agree, the basic cause was probably the blue component from outside. The way it was rendered, however...

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Hallo,

Look here: Leica M

[AlanG]

We're wondering because it was dark outside, overcast and raining... The blue on the highlights is very blown out, way out of proportion...But I agree, the basic cause was probably the blue component from outside. The way it was rendered, however...

 

In your shot there is plenty of light outside. One can clearly see the flowers and plants through the window.