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About Peje

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    Proto Star

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    Lisburn, UK.
  1. Price drop... £850. (Removing Atik service also) (Can't figure out how to edit original post )
  2. 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.
  3. Price: £850 Excellent condition, comes with all original unused cabling, packaging and accessories. The camera has been used for around 2 years and have never given any problems whatsoever, not even a single connection drop! This was my first astronomy camera and I am very happy with choosing CCD over CMOS, so much so that I will be sticking with it. The only reason for change was to move to the 460 as it is better suited to the field of view of my telescope, it’s basically the same camera as the 428. The library files for this camera have the same mean value for bias files as 900sec darks, indicating that dark files are not necessary due to incredibly low noise. Features Sensor Type CCD - Sony ICX674 – 3MP Horizontal Resolution: 1931 pixels Vertical Resolution: 1451 pixels Pixel Size: 4.54 µM x 4.54 µM ADC: 16 bit Readout Noise: 5e- typical value Interface: Mini-USB 2.0 High Speed Power: 12v DC 1A Maximum Exposure Length: Unlimited Minimum Exposure Length: 1/1000 s Cooling: Termoelectric set point with max ΔT=>-30°C Weight: approx. 400 gr Backfocus: 13mm Attached images taken with a basic Skywatcher 200mm Newtonian telescope on an EQ6 mount. Full resolution images and further information available on request.
  4. 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.
  5. 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.
  6. 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.
  7. @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?
  8. I need to go through the search options, I don't have all of those in my list.
  9. Did you ever get this added? I've been trying tonight but it's not showing up on the search, just says 'unknown error'.
  10. Do the warnings on the RSpec calculator not cause concern?
  11. 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.
  12. Absolutely, nothing is ever black and white... To be clear, do you think the SA200 is better suited to my current system?
  13. Unfortunately I can't add spacers, I need this to drop into my existing system. I often use this when I am away from home (or in bed sleeping) so I need to avoid having to physically access the system. The 193px is actually 1931, the mobile phone display for the RSpec website has just chopped the edge off it, you can see the top of the 1 just poking through in that screenshot. The attached screenshots show that the calculator states the SA200 is worse for me than the SA100.
  14. For reference, I've attached the input and output from the RSpec calculator EDIT: Updated screenshots in later post.
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