@douglasf13,Vivek and Double Negative--
Could you kindly look at the same image on the LUF under R lenses "First Try-MM + APO 4/280" and tell me if the same problem occurs with this image on your monitors? Thanks.
Last edited by algrove; 28th December 2012 at 19:40.
Yup, I see it on that version also. So I guess that would rule out host-side (forum attachment) manipulation of the image.
Weird that the Air doesn't show it either.
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I sent the same image to 3 different friends with Mac's and they do not see it either. That was why I thought as you say host-side interference. Guess not.
I also just re-calibrated my monitor, just in case, but no change for me. Thanks for checking.
I'll double check both on my normal (desktop) monitor tomorrow also.
I shoot a lot at night and for me every stop counts and I know Leica has fast glass and can shoot at a slower shutter speed but I was wondering about the sensor iso compared to nikon/canon/sony?
seems to me that the m9 is maybe about 2-3 stops behind when talking about usable images and only talking about sensor iso. is that right?
Checked both on my normal (decent but calibrated) desktop monitor - same pattern.
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Gridded, cubic - like the GetDPI background image, yes.
So does this all really mean the actual images of say the new "M" would look no better at high ISO than the M9 adjusted in post? In other words, that the new "M" with high ISO ability will only get you that ability to view those low-light shots properly in the LCD but other than that you could get to the same image with the M9 and adjusting it later?
Ah I see now that makes more sense. Is there some point with possible differences with the CCD vs. CMOS sensor though?
I am not sure what the advantage is though if the result is the same, or is pushed better ?
I get the don't over expose point but if you are significantly under with your target exposure how do you pick the right setting ? Set the EV to - something, like 1, 2 or 3 stops ?
I tend to pick ISO for a shoot and that's it
PS why are the M9 noise graphs non linear and will this non linearity be matched by the LR exposure increase process ?
PPS won't lifting exposure in LR also bring an emphasis on the mid tones, it would be interesting to try a grey scale for the test
The thing to test to your satisfaction is whether whatever raw process you are using does a better job in boosting the ISO than the in-camera ISO setting does. If it does, then use the technique. If the camera proves better, or you want the LCD review to be viable, use the camera setting. Always be mindful of the limits of the sensor AND the raw processor that you use.
I didn't shoot a gray scale, just used the two test images I already showed to test this.
Making the same exposure at the ISO 1250 setting and again at the ISO 160 setting, and then applying +3 EV via the Exposure slider to the ISO 160 exposure, nets the exact same result, with output histograms that are so close as to be identical (they're not exact as I didn't have the camera on a tripod so the scene is shifted slightly).
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