I recently received my SV80ST-25SV back from Stellarvue. They replaced the lens since the original was showing some signs of pinched optics. They were excellent to deal with about this.
As a test, I shot some luminosity data of the Pleiades, Messier 45. The new lens looks like it is doing quite well.
As a test, I shot some luminosity data of the Pleiades, Messier 45. The new lens looks like it is doing quite well.
I also created a version using the RGB data I collected with the original lens. Unfortunately, conditions were enough different so it doesn't combine as well as I would like.