Jump to content

Banner.jpg.b83b14cd4142fe10848741bb2a14c66b.jpg

XavierL

New Members
 View Profile  See their activity

  • Posts

    11

  • Joined

  • Last visited

Reputation

4 Neutral

Contact Methods

  • Website URL
    https://go-pixl.com/

Profile Information

  • Gender
    Male
  • Interests
    Astrophotography
  • Location
    Bristol, UK

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. XavierL
    I did manage to get first light on the new scope tonight and shot the same target for comparison. I quickly processed a stack of 10x2min exposures and did the same thing with the old scope in order to compare. The new scope looks a lot better across the field of view but stars still aren't round in the corners. Note that the noise in the new version is higher than in the old version since I was in a more light polluted area tonight, so please ignore that when looking at the images. This is the new scope: The same image with the old scope: Center/Corner details on the new scope: Center/Corner details on the old scope: What do you think? Do you think the new RedCat is good enough or should it also be adjusted?
  2. XavierL
    Hi everyone, I heard back a week ago from FLO. They sent to scope for collimation/calibration to Es Reed. Unfortunately, after inspection, it turned out to be an uncorrectable astigmatism (probably from the factory) so FLO sent me a new replacement unit that I received last week. I haven't tested the new scope yet (clouds...) but I will try to update this post with a new shot of the North America Nebula for comparison as it might be useful to others in a similar situation.
  3. XavierL
    Thanks for your help everyone! Really appreciated. 👍👍 I have contacted FLO. Like @Adam J, they think it is a mis-collimation issue. Since RedCats are currently out of stock everywhere, they can't get me a replacement but offered to get it collimated again with their specialist. I think that's a fair alternative. I will keep you posted after the repair (don't know how long it will take). Thanks again.
  4. XavierL
    Thanks! I'll try that next time 🙂
  5. XavierL
    No play but the standard M48-to-F-Mount adapter is not the best quality... So maybe it's not perfectly parallel to the back of the scope. I wonder if I should have gone with the high precision version instead. It does have an integrated field rotator, which I used to frame the target. I would hope the rotator can be used in the field without requiring a tilt adjustment afterwards. Otherwise, that makes its pretty much unusable. 🤨 I'll contact FLO and WO directly and see what they think. Thanks
  6. XavierL
    I used the included Bahtinov mask and made sure the diffraction spike was bang on in the middle so we can probably rule out focus issues
  7. XavierL
    Hi all, I had another go last night at the same target. I made sure the focus was bang on and here are the results (RAW file below). It looks a little bit better but I still see elongated stars and the corners while the center stars are round. The analysis in CCDInspector seems to confirm that. What do you guys think? Should I send it back?
  8. XavierL
    Thanks @david_taurus83! I will try again, hopefully tonight (the forecast looks promising ATM🤞) and report back.
  9. XavierL
    I agree, the focus might have slipped a bit (I did use the included Bahtinov mask). However the stars at the edges look elongated in all sorts of different ways. Could it be the result of bad focusing or could there really be an issue?
  10. XavierL
    No, stock DSLR. I should also mention: I don't see this issue with any of my regular photo lenses.
  11. XavierL
    XavierL changed their profile photo
  12. XavierL
    Hi all, I received my RedCat 51 a few weeks ago (from FLO) and had first light this weekend. After initial post-processing it seems there might be an issue with the scope (possibly the tilt?). Here are one of the RAW files, the initial post-processed stack and a few measurements using CCDInspector: Single exposure RAW: Processed stack: Curvature analysis: 3D Map: What do you guys think? Should I contact FLO? Return it? Attempt adjusting the tilt myself? Thanks in advance. Xav'' My target was the North America Nebula (NGC7000) Equipment used: Redcat 51, Optolong L-Pro 2", M48-to-F-Mount ring adapter, Nikon D5300 Settings: 180sec subs, ISO 1000, 50 lights, 17 darks, 16 flats, 16 bias
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.