ASI533

Jorge

Is the ASI533MC a good option for a SkyWatcher reflector D=150mm, F= 750mm?

AstroDude42

Hi Jorge, i don't know which model you are referring to, but this tool tells that the 533 in combination with the SkyWatcher Esprit 150mm has good sampling: https://www.bintel.com.au/tools/astronomy-calculator/?focallength=1050&fratio=7&pixelsize=3.76&xpixels=3008&ypixels=3008&eyepiecemm=&eyepiecefov=&binning=1&multiplier=1&target=orion&p1=&p2=&p3=&telescope=836&camera=60814&eyepiece=&v=322b26af01d5

Hope this helps. Best, Oliver

arp1954

Hello Jeorge
Yes it would be a perfect mid focal length option for the ASI533, giving image scale of 1.03 arc secs per pixel and a fov of about 52minx52min. I have the same camera at the moment with a 61mm apo fl 275 which is fine for wide views but I am considering a 100mm F7 apo for smaller dso's
Brgds