Recommendation Number of Dark, Flats and Bias

[Leandro VARGAS]

Hello,

I need know what is the recommendation to define the number of Dark, Flats and Bias during one session.

Whats is the idea in define the number each files?

Example, If I have 70 light of 120 seg., ISO 1200, etc... What is the number of bias, dark and flat I need ?

Regards,

Leandro

[pfile]

the # of calibration frames is not directly related to the # of lights.

calibrating your frames adds noise to the images so using masters composed of a lot of subs is a good idea. i always use 200 bias frames and at least 50 darks. some people think this is too much, but i figure why not?

rob

[jkmorse]

Leandro,

I use 200 bias, 64 dark and 25 flat sub-frames to build each of my masters.

Best,

Jim

[Leandro VARGAS]

Thank you, I think I need increase my dark and bias.

[Phil Leigh]

I use a master Bias made from 200 Bias frames, no darks (cooled camera) and 25 flats.

[Andres.Pozo]

I think that the animation that I posted in this message could be useful for you.