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Old 03-07-2014, 07:25 PM
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cometcatcher (Kevin)
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Join Date: Jan 2005
Location: Cloudy Mackay
Posts: 6,542
Quote:
Originally Posted by jsmoraes View Post
... At this time some stars have a blue ring around: refraction or chroma distortion ?...
Did a test Jorge to see where the CA is coming from. This is straight through, no lenses other than the main objective and this is where the CA is coming from. So my ED100 has some CA. I'm not really surprised, it's just a doublet with one ED element. It's not noticeable visually, only when zoomed in on a photo. This is a 200% enlargement from the 16mp sensor.
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