There is a band in the M9 in near darkness

raid

raid

Dad Photographer
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Hi,
I used the M9 at ISO 2000 or so, and at near total darkness. I see a faint band then. Is this usual? In a similar set-up, and with slightly more light, there is no band.

What is the cause of the band?
 
Sounds normal to me. Most digital sensors will produce some minor banding at their theoretical ISO limit in the described scenario.
 
If you push it even further you will see tartan-style banding. I can even provoke a grid on my Monochrom. We are far beyond usable photographs then.
 
JSU said:
Is your exposure correct or no more than one stop under? Regardless of illumination level, if you are correctly exposed or there about, there should not be banding.

I only see banding with the M8.2 @ ISO 2500 and at least one stop underexposed. If correctly exposed at ISO 2500 the image is noisy but no banding in the shadows.

Can you offer a sample image?
Click to expand...

The exposure must have been three stops underexposed by the flashing lights of fire engines and police cars.
 
santela said:
i think that's normal, the D700 has the same issue, just at much higher iso.
Click to expand...

Absolutely normal, a low signal-to-noise resulting from gross under exposure makes every digital camera look bad because... well there's just a lot of noise and artifacts present from numerous sources. The noise and artifacts are there all the time but usually they're not digitized because there aren't bits available after digitizing a high-level signal.
 
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