Hi there to all,
I have not been doing digital imaging for long, however i have read up on it and followed the advice from the books, with reasonable success.
My question is this, is there any need for dark frame subtraction if the camera that i use has a noise reduction function in the custom settings, is this basically the same as subtracting dark frames afterwards.
I use a Pentax IstD, my exposures normally are from 30 sec's to 3 or 4 minutes, tracked.
During my imaging periods i have taken dark frams as suggested, and hopefully subtracted them successfully, i say this as API4Win can be a challenge to the novice.
I decided to check how noisy the dark frames were, on my computer and enlarged the image by 1600 percent, and then scrolled through the image and hardly found any noise at all , just the odd signal white pixel.
I would be interested to hear in what more experienced imagers may think, and maybe give me some advice.
Thanks Leon
