b1ues

That white paper is great..but now the maths headache! If I read this correctly, the adapter plate is 3.5mm above the cuff. The ZWO filter draw is 21 mm, the 2" filter 0.7mm and the 533 cuff and sensor plain is 16mm =41.2mm Does that mean I need 31.6mm spacers to get to 72.8mm? or! the back focus on the camera is 55mm. so, do I use the spacers with the camera, + the adapter plate and filter = 59.2 mm deduct from 72.8mm leaving 13.6 mm. and that's the gap I need to cover? or are both of these methods the wrong way of getting BF with the kit I have?

excellent! Thanks for your response

Just purchased a demo Rasa and tried to use for the 1st time last night. i have a ZWO EAF , using ASIAIR plus and at the front, the camera adapter connected to a ZWO filter draw and then ASI 533mc Pro camera. I coul not get focus, just these rings. Any ideas where I need to start correcting?

Hi everyone, I was given an EQ5 Pro Synscan as a present and I purchased an ASIair based on the videos on youtube..it looked awesome. However, I can't get the app to connect with the telescope. I've updated the FW, purchased an EQmod cable for it and nothing. Tells me to connect and to make sure i have done a polar and 3 star alignment! Ahhh Any advice would be greatly appreciated