Roy Hoskin Reviews

I had been searching for a solution to imaging with my new olympus E-510 and a coronado PST CAK telescope and had gone through many different solutions without much satisfaction. The PST has a very limited back focus making imaging difficult, and getting the image size appropriate on the camera sensor was difficult. Using the 2.5x powermate with the t-ring adapter gave me a perfectly sized and sharp image with enough backfocus to add an additional K-line filter between the powermate and the PST to further narrow the spectral resolution.