NR before or after sharpening has been asked and answered, but deconvolution is much more complicated than simple USM. Many deconvolution algorithms have their own methods of handling noise, so I'm ...
Is there any quality advantage to doing dark frame subtraction in camera? It seems to me that doing it manually in software can't be any worse, and can be better by using a dark frame that is the ...
I have made a mosaique of the sun, but all pictures have different light levels. I was wondering how to match these colors to be the same everywhere. So basically I need all the pink to be the same ...
This is the Milky Way above Kakadu National Park, Australia, and my first try at astrophotography. Thirty second exposure, f/4.0 at 17mm with ISO 12800 (!!) which in hindsight probably was way too ...
I've created a few photos of the Moon using a Maksutov-Cassegrain telescope and a DSLR. I've tried different ISO settings, shutter speed, bracketing to find the best settings. Here I show a (reduced ...