Quote:
Originally Posted by tlgerdes
I have the Bintel/GSO 8" F4. They come in under $500, but you will need to add a coma corrector ($250) and a set of catseye collimation tools ($300). F4 is not for the faint hearted when it comes to collimation and a Laser is not close enough.
I choose the Bintel/GSO over the Orion as I felt their standard focuser was better.
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You say that the F4 is difficult to collimate. I was looking at getting the 200mm f/4 GSO to put on a HEQ5 Pro. I am wanting to do both observing and later imaging. Would you recommend against it then? What is a catseye collimation tool? If it is $300 and necessary then it puts it out of my budget range! I was hoping to save weight by getting an f/4 over and f/5.
