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Old 21-02-2019, 06:03 AM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,932
Celestron & Meade marriage...

Well, only here in my backyard - I attached new Meade 4000 0.63 FR to C11.
The working distance is not quite right (I have yet to determine is it too long or short), vignetting and out of focus is visible on the attached crops (trapesium in the centre and star in the corner, from the same frame)..

But the difference between "with" and "without" in terms of illumination is pretty huge (well, ~2x... both exposures were 15sec).
All images are single frames, taken at ISO6400.
Weather was OK before clouds rolled in (with rain), all 6 stars in Trapesium were clearly visible, both visually and on photo.
Attached Thumbnails
Click for full-size image (trapesium.jpg)
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Click for full-size image (without_with.jpg)
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Last edited by bojan; 21-02-2019 at 10:09 AM.
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