[anthony566]

Are there any Sony A200/300/350/700/900 users useing your DSLR's for astro photo's and mounting it to your Telescope ?

If there is then can you tell me how you have done this as im looking to get hold of a Meade LX200 GPS 10" Telescope.

[Matt]

something like this i would think

Orion Tele-Extender Camera Adapters.

[TonyH]

Thats a serious piece of telescope your buying into. I haven't seen a lot of Sony users doing astrophotography. Having said that it must be over a year since I researched it, most people I looked at were using the Meade cameras and various webcams, stacking images. A couple were using modified Canon 350Ds with the IR filter removed. I always felt with Dslrs the shutter open time would be excessive and you would get the heat from the sensor showing up on the image. Hence people were using peltier coolers fixed to the back of webcam sensors.
There is also a few of ways to do astrotogging:

Piggyback, mounting the camera onto the telescope pointing it at something and letting the telescope guide the camera.

Eyepiece magnification, using a jig to mount the camera so it focusses on the image projected by the eyepiece, this way you get the full magnification of the scope.

primary focus, this uses an adapter which replaces the eyepiece and fixes to the front of the camera. Don't know much about this one, whether the adapter screws into a filter thread on a lens or replaces the entire lens????

It depends what you want to achieve really, personally I would forget the scope and buy an A900 and a white lens.