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It figures! First clear night in ages and the pollen is as thick as..well, something really thick. Up to now, I have been fairly careful to avoid dust getting down the tube, but pollen is going to be unavoidable for the next several weeks.
So...what does one do? Are there some do and don't things I should be aware of? It looks like my mirror comes out fairly easy (SkyWatcher 10" ). I'm guessing "chuck into the dish washer on the pot scrubber setting" is probably a really bad idea.
What then, is the plan? What chemicals/detergents should be used...or maybe all chemicals should be avoided? Is it a no-touch surface? Is there perhaps some magic spray that one uses? I do have a can of electronics air that I plan to use from a safe distance to persuade away loose pollen, and that may be enough for the present.
By Kevin Francis
Purchased the Orion Astroview 6 three years ago. Found out later that I could not attach my Canon EOS XTi and obtain focus. Everything I saw online required sawing and drilling the OTA. That makes the scope a single purpose telescope. After reviewing the primary mirror holder I created a holder that moved the mirror 25 mm. This way I can keep the scope ready for visual observing and sell later if I desire. If you're interested in saving a few dollars in this hobby check out the link below.
How I Moved Prime Focus: Link to the detail.
Photo from this telescope
Looking for a 12" DOB (or larger) which can be transported to Prestwick, Ayrshire. Any brand, as long as the telescope is optically sound and in good working order. I'm a reliable buyer who has bought and sold on this site before.
So I picked up a classic... a 1970's - 80's edmund optics f6 150mm newtonian...
... like this one but mine has a different mount. It was cheap. Very good condition. The focuser is pants. The mechanics of the secondary holder is (IMHO) brilliant and apparently the primary is 1/10th wave.
But its f6 and I trhink I'd rather swap it out for a faster synta f5 mirror. . The thing is its a one shot job bc to make the f5 mirror work I will have to saw off a good few cm from the barrel of the scope.
So the question is: Is a high quality f6 mirror better than a faster synta f5 mirror for wide deep space astrophotograhy?
All comments gratefully received. 😉
Skywatcher 150/1200 f8 planetary Newtonian.
Bought this originally intending to set up a planetary rig but circumstances call for sale.
Will come with eyepieces and a collimation eyepiece. Not used by myself and has seen very little use. Mirrors in good condition