|
Tha DMK 21 is exactly the type of camera the SA was designed for. I found I got best results with the SA 75 to 125mm in front of the camera. Once you get the hang of it, you don't need the 0 order image... you can push the dispersion and calibrate on features in the spectrum alone.
The QHY9 is a mono camera too isn't it? Could be worth a play with that too.
Al.
|