› Forums › Photometry › Hyperstar for photometry? › focal reducer ?
29 August 2018 at 11:36 pm
#579925
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
Would the C6 with a focal reducer to f6.3 perhaps be a better bet? (3 arcsec at 950mm focal length = 13.8um)
Robin