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Trying out 2500 and Ecolight


jaapv

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I assume Jaap is testing noise at ISO 2500 with a room lit with an Eco Light bulb in the lamp.

 

Regardless the image has little (if any) noise. It's about as clean as you can get.

 

Nice test shot!

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I assume Jaap is testing noise at ISO 2500 with a room lit with an Eco Light bulb in the lamp.

 

Regardless the image has little (if any) noise. It's about as clean as you can get.

 

Nice test shot!

Well said :)

I found the secret of high ISO shooting is to take care that the histogram is full. If you shoot so only the left side is used, the noise increases exponentially.

 

The NR settings in C1- 5 were:

Luminance 45

Color 64

Long exp 0

 

Sharpening:

Sharpening 258

Radius 0.2

Threshold 0.7

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I found the secret of high ISO shooting is to take care that the histogram is full. If you shoot so only the left side is used, the noise increases exponentially.

 

Probably because if only the left side is filled, one is actually shooting at ISO 5000 (or higher). I agree!

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Jaap, in the first image it looks like the right-hand arm is more in focus.

 

Are we seeing the left one for a particular reason? Or is the the back wall we are supposed to see?

I'll happily provide a crop of the armrest I focussed on. However, I find it easier to judge noise in OOF areas.(Sorry there is a slight color difference. I redid the image for this crop and was too lazy to colormatch exactly)

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Probably because if only the left side is filled, one is actually shooting at ISO 5000 (or higher). I agree!
That explains, of course why the Leica digitals have a reputation of being very noisy. If a DSLR is used in such circumstances, matrix-metering will bump the exposure up. If one forgets to expose the Leica correctly, in comes the noise... If the exposures are properly equalized, the difference is far less marked.
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I must say, I am still in shock with LR3 results. I also made few 2500 checks.

 

In fact you can remove color noise maximally, but keep luminance even untouched. After exporting to JPG with lower than oryginal resolution - if frame is not underexposed - it is perfect for me.

The grain is pleasant, not disturbing like from LR2.6. For amateur pictures, not paid job - I don't need anything more.

 

PS: I still will be using flash from time to time, as I like to play with effects it can give, not only use it for decreasing ISO. I also am not fan of paper DOF.

So usable 2500 is best news since I bought M9. Now - only red corners remained ;-)

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Here's my take on my ISO 2500.

 

Noisetest.jpg

 

100% crop.

 

crop1.jpg

 

crop2.jpg

 

 

 

Processed with Adobe CS5, noise reduction using NIK Define 2.0 - 75% luminance and 75% noise, unsharp mask 300%, ratio 0.2, threshold 1.

 

I think it's pretty good here.

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