74053Re: qsi 583 filters at f2.2
- Apr 19, 2014Jeremy,
The 583 with 31mm filters will provide unvignetted images to about f/3. You will see some vignetting at f/2.2 in the corners of the image, but you should be able to get good results with flat field calibration.
Here's an screenshot of a flat taken with a Hyperstar at f/1.9:
You can see with the red lines in the line profile where the vignetting begins as a result of the aperture stop through the filters.
- << Previous post in topic Next post in topic >>