GH2 Noisefloor Index

[FelixGER]

I skipped it because I thought it must be worse noise at 500 because it´s an in between ISO. I will retest under same conditions with every ISO up to 3200 when I get home.

I already shot the first 50 seconds of the intro of my traditional new years eve video we do every year. Almost everything was shot at ISO 400 and it grades very well!
http://vimeo.com/18200848
PW: 1519

Just fun

 

[Sage]

I skipped it because I thought it must be worse noise at 500 because it´s an in between ISO. I will retest under same conditions with every ISO up to 3200 when I get home.

Good stuff. Try it under varying lighting.
I think you may have a less noisy sensor, with 1/3 stop improved performance.

 

[FelixGER]

Ok my camera definitely acts extremely strange!
I actually cannot use ISO 2500 and 3200 (I wouldn´t do it anyway) because I get a terrible shift into a green picture und it flickers like hell.
I think the sensor is somehow broken

http://www.vimeo.com/18246626

 

[mistan]

I just did a noisefloor test on my GH2 (lens cap on, 1/50 shutter, Nostalgic -2 -2 -2 -2) and my results are similar to Felix's. 400 is cleaner than 320 and 800 is cleaner than 640....even 1600 is cleaner than 1250. I wont be able to upload anything right now because I'm at a hotel. Just giving my 2 cents

My cleanest ISOs are 160, 200, 250, 400, 800, 1600, and 2500. That's concluded from a noisefloor test and not real-world.

 

[FelixGER]

I don´t know if I should get my camera to service....
I´m a little concerend about this 2500 and 3200 mess and the colorshift from 800 to 3200 to green (I can compensate tha with the WB shift, but I dont know...)

It seems the sensor is ok, because th live view on my TV is ok but as soon as i press record the camera freaks out.