200mm rc + qhy8 camera focal reducer

[pjphilli (Peter)]

Hi

What type of focal reducer could I use with my 200mm f8 RC scope together with my QHY8 camera which has a 28.4mm diagonal sensor
width?

What level of focal reduction could I expect to provide undistorted illumination of the full QHY8 sensor?

Cheers Peter

[Visionoz (Bill)]

Peter

IIRC the AstroPhysics CCD67T seems to be useful for the purpose.
Remember reading about an IIS member allan_gould using it for his GSO-RC a while back.

HTH
Cheers
Bill

Originally Posted by pjphilli

Hi

What type of focal reducer could I use with my 200mm f8 RC scope together with my QHY8 camera which has a 28.4mm diagonal sensor
width?

What level of focal reduction could I expect to provide undistorted illumination of the full QHY8 sensor?

Cheers Peter

[Visionoz (Bill)]

Found the link - here: http://www.iceinspace.com.au/forum/s...ad.php?t=87365

HTH
Cheers
Bill

Originally Posted by Visionoz

Peter

IIRC the AstroPhysics CCD67T seems to be useful for the purpose.
Remember reading about an IIS member allan_gould using it for his GSO-RC a while back.

HTH
Cheers
Bill

[pjphilli (Peter)]

Thanks for this info. I will look into the CCD67T.
Cheers Peter