Terry Robison
Comparing images from two telescopes
The above image compares images taken with a 250 RCOS telescope using a SBIG STL 11000 vs ED 81S Vixen using a SBIG ST-8300.
It was a fun exercise to compare the results of two scopes and cameras looking at the same target. I have not spent any real time processing the images as I was really interested on how they compared with each other. Both images have been cropped, and were taken on the same night on the same mount. The image on the left was taken with a RCOS 250 mm f9 using a SBIG STL-11000 camera. The image on the right was taken with a Vixen ED81S f 7.7 refractor, using an Asto-Tech field flattener, using a SBIG ST-8300 camera. The Vixen was riding piggyback on top of the RCOS. The images have not been rescaled, just cropped. The conditions that night were very soft, not good for high resolution stuff.
Link to full size: farm9.staticflickr.com/8643/16420257340_17daa4645e_o.jpg
Terry
Comparing images from two telescopes
The above image compares images taken with a 250 RCOS telescope using a SBIG STL 11000 vs ED 81S Vixen using a SBIG ST-8300.
It was a fun exercise to compare the results of two scopes and cameras looking at the same target. I have not spent any real time processing the images as I was really interested on how they compared with each other. Both images have been cropped, and were taken on the same night on the same mount. The image on the left was taken with a RCOS 250 mm f9 using a SBIG STL-11000 camera. The image on the right was taken with a Vixen ED81S f 7.7 refractor, using an Asto-Tech field flattener, using a SBIG ST-8300 camera. The Vixen was riding piggyback on top of the RCOS. The images have not been rescaled, just cropped. The conditions that night were very soft, not good for high resolution stuff.
Link to full size: farm9.staticflickr.com/8643/16420257340_17daa4645e_o.jpg
Terry