Bedt camera for guiding with orion thin oag under 300
Posted 19 November 2019 - 10:30 PM
Posted 20 November 2019 - 10:13 PM
I doubt that you'll find a guide camera with a higher QE than the 75% of your camera's specifications. Your best bet may be to switch to a monochrome guide camera which will eliminate the Bayer matrix filters built into your color camera.
You also didn't mention how long your guide exposures are. I'd strongly recommend at least three seconds, and possibly five seconds. Very short guide exposures often end up chasing the seeing which doesn't do much for your guiding. A 3-5 second guide exposure should almost always have some stars showing up.
Posted 20 November 2019 - 10:41 PM