Re: Noise on the Olympus OMD EM 1 II
1
Hi, fellow E-M1 Mark II (and Mark III) user here.
1. The crop of the wings looks very processed and not at all what an Olympus RAW file would look like at ISO 1250 from an E-M1 Mark II viewed at 100%. Is it possible that's a 400% magnification screen shot? If so, why are you pixel peeping at such high magnification?
2. Any underexposure at all with m4/3 will exacerbate noise. Saturate the sensor with as much light as you can without totally blowing out any highlights you care to have detail/tone in. I've found that the image needs to look a little "hot" on the camera's display for it to be a good exposure. Also, I pay close attention to the histogram.
3. What is your final use for your photos? Large prints? Social media? Books? I've made 16x20s with ISO 2000 files from this camera and they look great! Again, though, proper exposure is VERY important, and adding about 20 points of noise reduction in LR does wonders. Or apply noise reduction selectively in Photoshop by dedicating a layer to noise reduction, creating a layer mask, and then applying that layer in the locations and in the amounts you prefer. I use Dfine, but pick the app or plugin you like.
4. The 2x teleconverter is probably making the noise look worse by degrading any fine detail even more. I have never used the 2x (or the 1.4x), but teleconverters certainly never improve image quality!
Ultimately, though, you need to consider all this advice against your tolerance for image noise. Some photographers demand, and work to achieve nearly noise-free photos. Others are fine with considerable noise. I'm in the latter camp and so, for example, the Olympus at ISO 4000 is OK with me... as long as I don't underexpose!