My inaugural Zen-market purchase (a Vixen 80mm f/15 refractor that included a Polaris EQ mount head -- thanks Bomber Bob for the tip ! - ) arrived late today, and so I immediately set aside what I was working on and proceeded to unbox it and re-assemble it ... here for your vicarious enjoyment is an album containing 22 photos:
((Also, here is what should be a "slideshow" link: https://www.cloudyni...ow/album-17082/
in case you might prefer this to the album's thumbnail view. On a windows laptop or PC, pressing the F11 key should toggle you into / out-of full-screen viewing mode. Also, if you hit pause and right-click on the photo being displayed, selecting "Open image in a new tab" [at least on Firefox and/or Chrome] will let you see the photo at the full size that I uploaded ... which won't exceed 1920 x 1280 pixels in size, after cropping to minimize the amount of clutter >visible< inside my garage currently ... rest assured there's plenty of it present, even if not much is visible in these photos after my judicious cropping : - )).
I was aware when I placed the first bid (and seller had first bid price = buyout price, hence this was an immediate purchase on Zen) that there were no photos of the objective with the lens cap removed, so this was taking a risk; upon getting my first look at it today, there is what appears to be mold(??) on the lens. (In my amateur telescope browsing over the past few months, I recall running across a recommended cleaning procedure for mold on lenses like this, so I need to find that again and consider the pros + cons before deciding how to proceed ... but I'm hopeful the lens' appearance can be improved and/or optical performance won't be too badly impacted ..). On the bright side, the cockeyed dew shield discovered upon un-bubble-wrapping the objective lens did not cause any permanent damage; the objective lens was packed separately from the tube, but with the dew shield and lens cap attached.
The one item not included with the mount (as it wasn't pictured in any of the Zen-market photos either, I wasn't necessarily expecting to receive it) is the bolt that connects the base of EQ mount to the tripod hub (aka tripod canopy) ... so I'll need to investigate whether the threads are metric or imperial, and what the appropriate bolt diameter and thread pitch values are. But this is very minor.
Mechanically, the knob that tightens the polar axis elevation setting on the East side of the mount seems to "bottom out" (or at least becomes very hard to tighten further) before it applies any clamping force (there's a thick washer under it, that remains loose), so this too is something I need to investigate further ... in the context of my eventual cleaning and refurbishing (rebuild of ?) the Polaris EQ mount movements.
The aluminum tripod legs supporting the Polaris EQ mount were those I purchased from a local CN seller here in SoCal, Paul, some months back (https://www.cloudyni...al-axis-slo-mo/) but now having acquired two beefier EQ mounts (well, three counting the Polaris included with this 80mm Vixen OTA : - ), last week I decided to pass that EQ mount onto someone else, but I retained the legs for the explicit purpose of putting them into service here (sorry Keith : - ), at least for the time being.
Rather than consume a lot of bandwidth here in this thread, I invite anyone who might wish to make specific comments to enter them as comments attached to the relevant photo(s) in the album. Naturally, it goes without saying that offering comments of a general nature / general interest is certainly appropriate right here in this thread also, of course.
Looking forward to the learning experience (and fun : - ) in store for me working on, and eventually observing with, this modest 80mm classic instrument ....
Thanks in advance to all sharing their insights, knowledge, and experience !
EDIT: Forgot to mention that the aluminum ruler seen in many of the photos (for scale) is 24-inches long, and is graduated in both inches and cm ... FWIW.
Edited by jkmccarthy, 26 June 2021 - 02:15 AM.