Hey, ya'll, here's the situation:
I am trying to go OAG instead of a guidescope so I can eliminate football shaped stars caused by flexure. I picked up an inexpensive Orion OAG to pair with my Orion All in One camera. But, due to noise and what I assume to sensitivity issues I have only once been able to pick up a star to caliberate PHD2. Even with the bad pixel map and new dark library I still have a multitude of hot pixels. So, I am looking around for a dedicated guide camera and have been leaning towards QHY5L-II, or the ASI120. So, here's the question:
They all have the same sensor!! Shouldn't I expect to get similar performance from the QHY and/or ASI? If so, then I need to find a camera with a different sensor, right? And if not, what factors influence the performance of the sensor that might differ between brands?
As always, thank you for your assistance!