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How faint can a 4-inch Apo go? Part 2
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Author:  DRatledge [ Tue Mar 08, 2016 4:46 pm ]
Post subject:  How faint can a 4-inch Apo go? Part 2

Just looking through last night's images of the Gravitational Lens Quasar. It's one quasar but we see it double as the light arrives by different paths around an intervening galaxy. The image below is a screen dump of a single image viewed in Canon's Digital Photo Professional - no processing just out of the camera. Unbelievably the 4-incher and Canon 60D has recorded it and it is elongated or double too. Should be much better when I get around to processing all the 22 images. The comparison image was several years ago with a 16-inch Newtonian. How things have moved on

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