A comparison of images taken with the 250mm RedCat f/5 telescope and the 300 mm Nikkor ED f/4.5 SIS manual lens prompts more questions than it answers. This is not an apples-to-apples comparison, but I'm eager to learn more about the effects of the differences in these two images.
The Nikkor and Williams Optics RedCat are similar aperture and focal length lenses. I'm very pleased with the RedCat image, but need to look more closely at the effects of processing, camera sensor, exposure time, and ISO.
Content created: 2020-01-01
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