Hi everyone-
I purchased a T2 tilt adjuster from Oceanside Photo Telescope (OPT)
http://www.optcorp.com/t2-tilt-adjuster.html
and used it with my ASI 120mm camera and 2.5 x Powermate. It seems to be the answer for those pesky Newton's Rings we have all been experiencing with this camera. The scope in my test below is a Coronado 90. I have yet to test it with my Lunt 100, but prospects look good. Newtons rings were present before the adaptor and I was able to eliminate them with it.
My results are below in grayscale and color. The top pic shows the camera's image without the adaptor>>you can clearly see the Newton's Rings. The next two shots have the T2 adaptor attached,
Jim Lafferty
