Dale Hawkes

Thank you Elp. I will follow what you have suggested tonight if clear. Many thanks to everyone who has commented

I moved the exposure time right down to 1ms. Earl - When you "You might need to add an extension tube to achieve focus." - what do you mean? Can you show me a link please?

Hello, I have a SkyMax 150 and ZWO 120 MC-S Colour Planetary Camera. https://www.firstlightoptics.com/telescopes-in-stock/skywatcher-skymax-150-pro.html https://www.firstlightoptics.com/zwo-cameras/zwo-asi120mc-s-usb-3-colour-camera.html Setup 1 Took off the 90 diagonal and put the camera into a 1.25" to 2" adapter and put it on the tube on the back of the scope. Pointed it to the moon, then used FireCapture, however I could only get a very white bright image. Setup 2 Put the 90 diagonal back on. Used the 1.25" to 2" to hold the camera into the 90 diagonal. Still no better image, however this time I got a white or black image. One of our members at Astro club asked me about Back-Focus. I have no idea on this, nor can I find a value for this. Any help would be appreciated, I am very new to this. Thank You