I had a chance to check out ThunderChild's new 6" GS Dob last night. This scope looks like it is going to make a very fine planetary scope. The OTA is long and slim with an f8 mirror. The secondary is just slightly bigger than needs to be to get all of the primary in view. The resulting central obstruction is only about 25mm in diameter, so 17% of aperture, which is supposed to be excellent for contrast. The spider vanes are the same quality as on the bigger GS scopes, no thick bolts or metal bars like you see on cheap dept store Newts. Unfortunately we did not get to look at anything through the scope. Rain & thunder.
Does anyone else own a 6" GS Dob, or is this a first for IIS?
