Quote:
Originally Posted by Larryp
Hi Tony-I said before I wasn't sure about my LP90. Finally determined the lens wasn't as good as it should be, and exchanged the scope. New one is excellent-great star images and good planetary resolution. I was interested in your comment that LP90 is a good visual scope, but not so good for imaging.
My astrophotography goes back to the hypered film days, and since I have been out of the hobby for 15 years or so, I am not yet familiar with modern CCDs.
I would like to get a colour ccd camera at some stage, but I notice the LP90 has some ca at the red end on bright objects, so does this rule it out for colour ccd imaging?
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I would ahve thought almost the opposite.
A 90mm scope of any type will only give dim views visually due to the limited light collection.
For photos with a monochrome CCD then you would just need to focus slightly differently for the blue channel.