[sletts02]

I am trying to use my 550D alongside a 2X Barlow in my Newt however am encountering some troubles with my Newt.

I think it is a focus issue. Without the 2x Barlow I can easily get focus. However, with the 2x Barlow attached I get just black. I investigated further and took over-exposed images and was presented with a huge doughnut ring (the out of focus image that my Newt returns).

I've tried to mount the barlow directly to the t-ring, as well as with the t-adapter. I have taken out the eye piece holder and used extra large screws to get it closer in the focusing tube and still no luck.

Any ideas on how I can fix this?

(Sorry about the lack of images, at my Mrs and using a very bad PC)