BIAS frames

[Mav359]

Hi Guys

After reading 'Every Photon Counts' i came away with the knowlege that you can create a Master BIAS frame which can be used again and again but as i am using eyepiece projection....

Do i need a BIAS master frame taken using each different eyepiece???

[FraserClarke]

The bias frame is a feature of the camera electronics -- it doesn't depend on what you're imaging onto the camera. So one bias frame will work for the same camera settings, independant of the eyepiece.

Short answer: No.