Some other items also have similar text like: Not sure if that still applies (or whether it applies only to this particular item), but can be found on this page: "Every single apochromat is tested and perfectly adjusted on our optical bench prior to shipping." While, on the other hand it states in one item description: I'm just not keen on rotating OTA in the rings, so I added that one as well to be able to rotate sensor (well, whole assembly, so I don't have to mind OAG position if I rotate only camera). Would that allow a threaded connection between the scope and reducer? I'm not so keen on push fit connections. I think I should be able to fit everything into the 61mm spacing. I'll drop TS an email to check on the optical test. Hope this helps, and if you have any questions, just ask. Check stars in corners - in first image it was more stable but spacing was off - in second it was worse (that is I think 3 nights image, so different clamping each night). Other than that you might try OAG in front of reducer - but you will need some extensions on it for guide cam to reach the focus.Īs for reducer performance - like I said, I had tilt issues, this means that there were different aberrations in different corners, and depending on clamping that would change. I'm using OAG16 (16mm not the thinnest one that is 9mm) and filter drawer instead of filter wheel, and only spacer was I think 5mm T2 one to get everything correct - so not much room. One more thing to note, I barely had room to fit all of the goodies after reducer, so please check the spacing. Here are some images that I took with that combo (one in lum only, and one in LRGB - second one I did a bit better reprocess later on).Īs for TS, I think you can order individual bench test of optics, but I believe they inspect photoline scopes prior to shipping, at least that is what I think I've read on their website. It gives good resolution with ASI1600, 2"/pixel for wide-ish field (well in my book wide field - I like high res imaging).
Optics on mine are great, I did Roddier test on it, there is thread somewhere with diagrams. There are a lot of options to adjust focuser, but I have not fiddled with it yet. Other than tilt issue with reducer, I noticed a slight shift in focuser when changing direction, that is something that can happen in R&P focusers, and it is not really much of a problem - shift is 10" or less in mine.
That is something that I would recommend, but for time being, won't comment on it until I get a chance to actually use it like that (4th month waiting for clear skies). I did have slight issues with reducer - namely tilt, and my latest purchase is supposed to sort it out - M63 - M48 adapter + rotator for direct mounting on end of TS 2.5" focuser. Hi, I have such a combo, and so far I'm loving it (also on heq5).