Peje

Glad to find this topic... going to make the switch now My only issue with PS2 was that my initial solve almost always fails (100 search limit) and falls back to online solver, which last night was offline!

Thanks. I ended up returning the BH as I couldn't get focus. I keep thinking out buying a BH zoom lens for visual astro in the summer, someday maybe :)

For my tightening, I used a metric Allen key and stopped at the point where it was about to slip. Hopefully this isn't excessively tight... I priced replacing the focuser... I'd forgotten how expensive they were!!

Ron replied immediately after I posted this topic... excellent support as always. He confirmed: - You can't use the fine focus wheel with motor kit fitted (even if the clutch is disengaged) - You can use the coarse focus knob when the motor clutch is engaged. So this was a red herring! I went back out and tightened up the lifting capacity bolts, tightened to the point I could feel the focus knobs were harder to use and also as tight as I dared using metric allen keys! Then some tests: > I marked the manual focus knob and moved the focus in and out by 1000 steps, 20 time... no focus slip on the knob. > I lined up a spec of dust on the focuser tube and moved the focus in and out by 1000 steps, 10 time... no focus slip on the focuser tube. So, either adjusting the lifting capacity resolved the problem or I haven't figured out what the problem is yet!! Will have to do some more testing the next time we get some clear sky... see you in 2021 Pete

Hi Folks, I've encountered a slight issue with my now 4 year old CR2, I noticed that the inward travel seems to be slipping. Oddly it seems to slip more when the adjustment bolts are facing downward than when they are upward. I use the motorised kit and noticed that my last two session as the night grows colder that I start to have focus problems. I have adjusted the lifting capacity screws but this doesn't help, when I release the motor clutch and manually focus with the coarse wheel it works as expected but when I use the fine wheel I have problems with it slipping. Something that I may be remembering incorrectly was that when the motor clutch was engaged, you could not move the focuser using the manual focus knobs. Currently you can. Has anyone had problems like this before? I'm wondering if it needs stripped down and cleaned. I have emailed Ron @ Moonlite for help. Pete

I've never attributed rings to be down to the CC but that's perhaps because I haven't thought of it. I'd like to see some comparitive images. This is a well known, challenging star for all scopes. The problem I had with the Baader CC was that it was causing my stars to bloat. This could have been because my scope is f/4 but it does seem to be a widespread problem when you start search the internet for it. EDIT: Just noticed you're also running f/4. Mine is the SW Quattro. If it's the same I would suggest getting the CC made for the Quattro.

I can offer no explanation as to why but the further my camera is away from 0/180deg orientation on the OTA, the more rotation I seem to get over a nights image. This is fairly anecdotal evidence as it was within the first couple of years of my AP so I was adjusting numerous things in unison.

I discussed using the SA200 low profile filter with Robin a few months back, he recommended using the SA100 in my system. I'm currently trying to think if I could rotate my entire camera train by say 15deg and then move the camera by -15deg. My main constraint is that I need the camera sensor to be parallel to my scope axis to stop image rotation during long imaging sessions but also that if the FW get's too high it might clash with the roof of my roll off shed.

That's a good idea, I had been thinking of something like that. My main problem is that there is no spare height in my FW so if I unscrew the filter even slightly I will risk it scraping the inside of the casing.

@robin_astro I've just fitted the SA100 into my system and grabbed a few images of Capella last night, that's as far as I've got unfortunately! A couple of queries / problems I have: - I use an IDAS P2 LP filter, I presume this will create holes in my spectrum? - The SA100 is running at a slope and I cannot rotate my camera without screwing up other alignment or hitting the filter-wheel off the shed. Is this going to be a major problem?

I need to go through the search options, I don't have all of those in my list.

Did you ever get this added? I've been trying tonight but it's not showing up on the search, just says 'unknown error'.

Do the warnings on the RSpec calculator not cause concern?

I want this to be part of my main imaging system. The intention is that at the start, middle or end of a night; the system will select the SA filter and go to my SA target, auto-adjust the focus position and then capture the data I want before moving on with the rest of my imaging run.

Absolutely, nothing is ever black and white... To be clear, do you think the SA200 is better suited to my current system?