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pretty sure they are not bad pixels, how to fix?


paul chiu

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got my VF2 last night, yay.

 

was testing under silly bad conditions at my desk.

strong LED lamp right at white marble statue with nothing else.

lens was apo 50mm F/2

 

this first image at ISO1600 F2 1/60 had no dots

http://i.imgur.com/tcs6PaU.jpg

 

this one 5 shots later had a few bright dots. (blue ones mostly) ISO800 F2 1/30 -2 EV

http://i.imgur.com/jtTJtXQ.jpg

 

Since they go away on some shots and appears on others, I think they are noise created by M240 noise reduction. Is this assumption right? Is there a way or ways to fix this?

of course, I can photoshop, but looking for your experience.

 

Thanks and Merry CHristmas.

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got my VF2 last night, yay.

 

this one 5 shots later had a few bright dots. (blue ones mostly) ISO800 F2 1/30 -2 EV

http://i.imgur.com/jtTJtXQ.jpg

 

Since they go away on some shots and appears on others, I think they are noise created by M240 noise reduction. Is this assumption right? Is there a way or ways to fix this?

of course, I can photoshop, but looking for your experience.

 

Thanks and Merry CHristmas.

 

I've looked closely but can't see any of the dots you mention on my Macbook Pro Retina. Maybe someone else will. Could you edit your image and circle the offending dots and re-post.

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Yes these are hot pixels for sure. I couldn't see them until I pixel-peeped with the magnifier but if you're concerned about them Leica can map them out I believe. Or it's easy enough to remove them with the spot tool in PS although it might take a bit of time.

 

Pete.

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they are not in all photos. that's the strange part.

seems like they go away after more firings. it;s really strange.

 

 

 

Yes these are hot pixels for sure. I couldn't see them until I pixel-peeped with the magnifier but if you're concerned about them Leica can map them out I believe. Or it's easy enough to remove them with the spot tool in PS although it might take a bit of time.

 

Pete.

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yes , they appear in the same locations and since all images were taken at F2, they cannot be dust.

 

If they are only appearing in black scenes, I guess I can live with it.

Things worked fine today during outdoor use.

 

 

 

 

Different exposure and environmental aspects affect hot pixels.

Are they in the same location, when present ?

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I have also noticed random bright dots in my out of the camera jpegs. However, I don't see them in the DNG version (of same picture) as viewed in LR. I guess LR automatically maps them on import. Since I always use DNG to produce my own jpeg, I am never bothered by these random dots.

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I have also noticed random bright dots in my out of the camera jpegs. However, I don't see them in the DNG version (of same picture) as viewed in LR. I guess LR automatically maps them on import. Since I always use DNG to produce my own jpeg, I am never bothered by these random dots.

 

Another reason why in-camera JPEGs are nonsense.

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