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Everything posted by CraigT82
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Interpretation of collimation pictures
CraigT82 replied to Corpze's topic in Discussions - Scopes / Whole setups
I have collimated both with the laser and cheshire several times, and each time, after checking with the cheshire, i get rotation error och the secondary (confirmed that it is rotation) I used to get the same kind of error on my 200p when using hotech and site tube together. Basically came down to variable clamping by my cheap1.25" adapter I think. I was certain the the secondary was centred in the tube (by measuring vane lengths) and also with the centreing under the focuser by using the site tube (which may actually have been off due to tilt), however the Hotech never agreed. In the end I ditched the hotech and bought both a parallizer and a glatter tublug (which I use with a cheap laser). Now my method is to: 1) use site tube to centre the secondary under focuser and set rotation to show three primary mirror clips evenly. I never use a laser to set the secondary. 2) use tublug with laser to set primary. (The tublug has basically a fancy way of doing the barlowed laser method) Using this method has worked perfectly for my f6 and f7.4 newts. However I appreciate your fast newt will be much more demanding I guess my main point is that you need to be sure that your two collimation tools are being held in exactly the same way in the focuser. Hope you get it sorted quickly! -
Wow that's really out of whack... must have had a very bumpy ride during delivery! Collimating SCTs is relatively easy and best done on a bright star in good seeing. If you line up the diagonal with of of the secondary screws that helps with knowing which screw to turn. The secondary screws only usually require small adjustments... turn and look, turn and look etc. Gradually getting that spot back to the centre. Your manual should tell you what you need to know but theres plenty of tutorials on youtube. Just be extra careful with Allen keys near the corrector plate!
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What's a serious Telescope?
CraigT82 replied to mikeDnight's topic in Discussions - Scopes / Whole setups
I think a proper telescope has nothing to do with size, as even a small lens or mirror will show much more than the eye alone, and different sizes serve different purposes anyway. For me it's about the design and usability. If a 3" refractor is well made and capable of producing sharp images, has a usable focuser, finder and a mount that allows it to be pointed accurately and easily at a given target than that is a proper telescope. This is where most department store scopes fall down into the toy category. -
I bought the sjywatcher white dual saddle for £29 from RVO and it fitted to my old black EQ6 a treat.
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Interpretation of collimation pictures
CraigT82 replied to Corpze's topic in Discussions - Scopes / Whole setups
Are you using a 2" to 1.25" adaptor when putting the Cheshire in? Could be some error introduced by that if so. I always had trouble getting laser and Cheshire to agree, until I got a howie glatter parallizer and used both laser and Cheshire in that. I'm not sure how this would affect images, possibly vignetting at one side of the image? -
Hi Wouter, hope you dont mind I took screenshots of your images and used the Layout app to display them side by side for easier viewing... yes I much prefer the reprocessed version, it has much more 'zing' ! Reprocess on left, original on right
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Rotating Image when Processing
CraigT82 replied to Seanasaurus's topic in Imaging - Image Processing, Help and Techniques
If you have several videos of saturn, you can stack each one in AS and then stack the resulting single tiffs together in AS too. It generally gives better stacking results than registax. Hou cent sharpen in AS though so Registax is still the go-to wavelets sharpening program for me. -
Rotating Image when Processing
CraigT82 replied to Seanasaurus's topic in Imaging - Image Processing, Help and Techniques
If you try stacking in Autostakkert rather than registax it should be able to decorate the frames. I wouldn't bother with pipp or virtual dub really, just try them in Autostakkert -
Sorry can't say I can compare them having never owned either, but I'd also say save your money... your C9.25 is more than capable of creating those stunning lunar images too!
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Lovely to watch, nice music too. Thanks Wouter!
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Heads up - interesting scope for sale
CraigT82 replied to CraigT82's topic in Discussions - Scopes / Whole setups
If I didn't already have the 8.5" version I'd snap it up myself! The mirror alone has got to be worth the asking price -
Heads up - interesting scope for sale
CraigT82 posted a topic in Discussions - Scopes / Whole setups
Cheap planetary scope on the bay... nowt to do with me I add. https://www.ebay.co.uk/itm/Vintage-Fullerscopes-6-F8-Mk3-Equatorial-Reflector-Reflecting-Telescope/333350170401?_mwBanner=1&ul_ref=https%3A%2F%2Frover.ebay.com%2Frover%2F0%2Fe11021.m43.l1120%2F7%3Feuid%3D7e7eb85380884f9192fd0e7d6c1cd731%26bu%3D43464197783%26ut%3DRU%26loc%3Dhttps%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F333350170401%26sojTags%3Dbu%3Dbu%2Cut%3Dut%26srcrot%3De11021.m43.l1120%26rvr_id%3D0%26rvr_ts%3D9c78827716d0a9c550163ee7ffeba420&ul_noapp=true&pageci=d3e2546e-89ce-4d4c-935a-74c466d01f2d -
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Very nice! The moons look great
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Nice work, as mentioned a little overexposed in the highlights but nice looking image nonetheless. Lots of oblique craters visible neat the north pole
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Nice work! So much to see in that area of the moon
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Very nice! I think some of us would be grateful if you slapped some capture details up there too (scope camera etc...)
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Be a lot cheaper and easier if you were to raise your current obs position to improve the view over the garage?!
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Just got lucky
CraigT82 replied to Marvin Jenkins's topic in Observing - Widefield, Special Events and Comets
Excellent! I've only seen one of those orange/green fireballs once in my life. To get it on film is outstanding luck -
Screw for Rigel finder mounting plate
CraigT82 replied to saturnian's topic in Getting Started General Help and Advice
You can buy as little as one single screw from this supplier... https://www.a2stainless.co.uk/M4-x-0-70mm_B22XJ3.aspx (I've linked to the M4 page, not actually sure if you M4 or some other size)