I have been trying to learn how to photograph Birds at a feeding station. At first I tried being on my patio, and with a 200mm lens mounted on my E-M5. Being only about 30 feet away, was too far away, and the Digital 2x converter had too much degradation on the small birds. So, I brought out a chair and set it up 20 feet away, Still a bit to far, but much better. I used Auto-ISO in full manual mode, and f/11 and 1/160… Too slow, but, at ISO 2500, I did not want to go to ISO 3200. Because the birds where still fairly small. these crops are about 1/2 the file size. The Panasonic G 100-300 would work great. I may find a 300mm Legacy though to save a few dollars.
My ISO was set for 200-2500. The EXIF is saved in the image after you enlarge it for 1st time.
I did use Noiseware Professional Plug-in to clean it a little. Although I do not eliminate all the noise, just enough to retain detail and smooth the noise a bit.
Here you go.