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AstroJay

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  1. Hi, Quick question regarding modified camera (canon 800D, filter removed, clear glass replaced) - Checking the histogram in APT it looks dangerously close to clipping the red channel on 180s exposures, iso 800. I’ve dropped down to 120s to move that channel back a little, pictures attached to show what I’m seeing. How do people manage the 3 min+ exposures with a modified camera and not clip the red channel? Target is the horse head nebulae. Thanks
  2. Hi, I'm having real issues pulling out any nebulosity from my stack - total exposure 2hrs 53mins, iso 400 (anything higher just seemed to give me fully white images), exposures of 90s. Any tips/advice? Thanks! Jay Pleiades no procesing.tif
  3. Hi guys, Complete beginner here, using a Canon 800D, WO Z73 with Field flatter, WO 50/200 with GP-Cam v1 for guiding on a HEQ5 mount. I'm connecting the HEQ5 directly to my PC via Lynx Astro USB cable, EQMOD is working great, works in APT with no issues, however in PHD2 it connects to EQMOD fine, but then sends nothing to the mount. I've restarted and reinstalled all the drivers and software, checked USB ports, checked that EQMOD is guiding, changed to ST4 in EQMOD, changed back to ascom pulseguiding, checked PHD2 settings, tried to connect via the camera using the ST4 cable (god knows how to even choose the correct mount when doing that), but everything I try results in the same thing - calibration error, start did not move, the manual guiding doesn't do anything, even setting the pulse to 5000ms... Read a lot of the forum posts, but haven't found anything else to try, could have missed something... Any ideas? Attached the ASCOM log and PHD2 log Here's hoping! Jay PHD2_GuideLog_2019-12-01_194314.txt ASCOM.SkyWatcher.1620.226870.txt
  4. Thanks - just did that with some clouds - had to move the focuser a lot to get focus, this surprised me. Hoping for a clean night so I can try again!
  5. Hi guys, Complete beginner here, using a Canon 800D, WO Z73 with Field flatter, WO 50/200 with GP-Cam v1 for guiding on a HEQ5 mount. Last night was the first clear night in weeks where I am in the UK. I managed to polar align fine using Polemaster and then that's when my issues started.. First off I thought I'd check the Polar Alignment with sharp cap - no matter what I tried SharpCap could not resolve the plate even though it seemingly found upwards of 35 stars, I thought this could be a guide scope alignment issue, but from what I've read on the forums it shouldn't matter. After about an hour I gave up on SharpCap and thought i'd do a 2 star align on the SyncScan, using backyard EOS live view - here's where the second issue arose, no matter what the settings (ISO, Exposure, Frame and Focus to shooting, etc) I could not get an image with a single star in it - could it have been that bad out of focus that nothing shows up? I spent around 4 hours on this and it was such a clear night stars everywhere to the naked eye... Any ideas/pointers? - I've attached a picture of my setup on my old EQ3 mount and a few of the pictures using various settings (jpg versions).. Thanks!
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