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Near March, Cambridgeshire
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Meade LX200 12'
andyboy1970 replied to Happysolderer's topic in Getting Started General Help and Advice
Maybe it was the just the Meade 7" Mak. -
Meade LX200 12'
andyboy1970 replied to Happysolderer's topic in Getting Started General Help and Advice
Been reading somewhere that these de-forked SCT's have a counterweight built in to the OTA to balance them in the forks. I would assume that purchasing just the OTA wouldn't have the built in counterweight. -
I believe the 4Gb buffer is to allow for slower computers on USB2 and prevent dropped frames/subs.
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New Mono CMOS camera from Starlight Xpress based on IMX304
andyboy1970 replied to Adam J's topic in Discussions - Cameras
I did get suspicious when he went on to further poo on their product by saying a downside of CMOS cameras was the large amounts of data created. I found this odd when he was showing SX's 3 pre-production CMOS cameras. -
New Mono CMOS camera from Starlight Xpress based on IMX304
andyboy1970 replied to Adam J's topic in Discussions - Cameras
Changing the direction of this thread slightly, I was talking to the guy on the SX stand about the competition and he said that the Asi1600 cameras have dark frames subtracted on camera so the data that arrives on your laptop isn't actually RAW data but already has dark frame subtracted to limit the amp glow. Can't find it mentioned anywhere on the web. If true it seems a bit sneaky. -
Very nice. How do you rate the 12" GSO as a scope?
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Is continuous mode with HitecDCFocus possible in ASCOMPAD?
andyboy1970 replied to Amra's topic in Discussions - Software
I have the same setup but must confess that I haven't even tried using the focuser through Ascom or using my Xbox controller. If I have a play I will get back to you. -
Paper aeroplanes aren't what they used to be!!!
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Filter effect on back focus distance
andyboy1970 replied to andyboy1970's topic in Imaging - Discussion
Of course! Got it, Because the distance from the filter to the chip is constant therefore shortening the FF to filter distance gives a wider light cone and the final focal point at the Ccd is shortened! Right i'm going for a lie-down.... -
Filter effect on back focus distance
andyboy1970 replied to andyboy1970's topic in Imaging - Discussion
Thanks guys, I will go with 16mm and see if it needs adjusting. -
I am setting up my filterwheel with Astronomik RGB, CLS-CCD & HA filters installed and was wondering how to factor these into the back focus calculation. I will be using this setup with my Starlight Xpress mono camera on a Williams optics Megrez 72FD with FF ver1 and on a Skywatcher Newt. with 0.9x Coma corrector. CC & FF require 55mm from camera. Camera mount to chip = 17.5mm Filterwheel thickness = 21.5mm Therefore I need to use 16mm of spacers but what effect does the thickness of the filters have on this calculation?
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Show me your eyepiece/accessories case, please.
andyboy1970 replied to Leegsi's topic in DIY Astronomer
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Used The Polar alignment function last night on my big Meade mount c.1980's which has no polarscope or Azimuth adjusters. Using my ST80 & QHY5 with 8 second exposures it was detecting 15-20 stars. Managed to get the mount aligned by slowly rotating the pedestal then adjusting Alt. Very happy with the outcome. Thanks Robin.
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Had to post due to the fantastic support offered by Starlight Xpress. I bought a secondhand camera which would only be recognised by some of my computers however not my imaging laptop running Windows 7. Followed some advice from an old thread on SGL and managed to wipe the camera firmware so it wouldn't work on any computer...... Contacted Starlight Xpress and Terry Platt tried fixing the issue using remote control of my laptop, this was unsuccessful and Terry asked me to send him the camera. Received the camera back today and oh yes it works with my laptop now. Considering this is a secondhand camera the service offered and given by Terry was fantastic. Future upgrade will be another Starlight Xpress camera.
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Show me your eyepiece/accessories case, please.
andyboy1970 replied to Leegsi's topic in DIY Astronomer
My new eyepiece case with room to expand. Still got to put the filters in....