Doc Posted July 15, 2015 Share Posted July 15, 2015 No not hard core you will need one when it's freezing. Link to comment Share on other sites More sharing options...
Brantuk Posted July 15, 2015 Share Posted July 15, 2015 Tyre warmers are hard core - you can still drive the bike without them. Without a dew heater you won't be able to see through the telrad if there's the slightest hint of dew - rendering the whole scope "undriveable". Link to comment Share on other sites More sharing options...
M. Posted July 15, 2015 Share Posted July 15, 2015 I should have something sorted soon. I still have a few other things to buy, like a dew shield and a dedicated tripod/pillar too. Link to comment Share on other sites More sharing options...
Tweedledee Posted July 16, 2015 Share Posted July 16, 2015 Martin, Lo-tech Telrad dew shield... http://www.astroboot.co.uk/AstroBoot/telescope-and-astronomy-stuff.html?highlight=AB3944#AB3944 Look for the thumbnail highlighted in red, usually top left of screen. Why waste time even making one at that ridiculous price. Link to comment Share on other sites More sharing options...
Daz Type-R Posted July 17, 2015 Share Posted July 17, 2015 Martin, Lo-tech Telrad dew shield... http://www.astroboot.co.uk/AstroBoot/telescope-and-astronomy-stuff.html?highlight=AB3944#AB3944 Look for the thumbnail highlighted in red, usually top left of screen. Why waste time even making one at that ridiculous price. Thanks for the link Pete, just purchased said item as my DIY effort has taken a bit of a battering over the years, can't believe it was only £5. Also thrown the boat out and purchased a proper battery box (18 months after everybody else). Tweedledee 1 Link to comment Share on other sites More sharing options...
Smithysteve Posted July 18, 2015 Share Posted July 18, 2015 Martin,Lo-tech Telrad dew shield... http://www.astroboot.co.uk/AstroBoot/telescope-and-astronomy-stuff.html?highlight=AB3944#AB3944 Look for the thumbnail highlighted in red, usually top left of screen. Why waste time even making one at that ridiculous price. Ditto, I have ordered one too! Great price and it's time to get ready... Link to comment Share on other sites More sharing options...
Doc Posted July 18, 2015 Share Posted July 18, 2015 Ditto, I have ordered one too! Great price and it's time to get ready... Agreed winter will be here soon. Link to comment Share on other sites More sharing options...
BAZ Posted July 18, 2015 Share Posted July 18, 2015 Next week by the looks of it. Link to comment Share on other sites More sharing options...
M. Posted July 18, 2015 Share Posted July 18, 2015 Link to comment Share on other sites More sharing options...
M. Posted July 18, 2015 Share Posted July 18, 2015 (edited) ^ Ok, get this. My original 1.25" SCT fitting, fits all the celestron models in the shop, but the baader 2" clicklock is also refusing to fully fasten up on my C8. I can get about a 2 thread purchase and it feels tight on and secure, but ideally want it to go on further. I think the SCT visual back looks to have a bit of thread damage, I'm trying my best to tidy it and get this adaptor snug up. Edited July 18, 2015 by M__ Link to comment Share on other sites More sharing options...
M. Posted July 18, 2015 Share Posted July 18, 2015 I like it, looking forward to testing it out soon Link to comment Share on other sites More sharing options...
M. Posted July 24, 2015 Share Posted July 24, 2015 (edited) Had a trip to rother valley optics yesterday and picked up one of these lenspen blower things, so I can clear lint etc from my eyepieces. I also picked up the 28mm fine tuning ring for the Hyperion eyepiece, this coupled with my existing 14mm offers up 3 new arrangements with my 10mm and 13mm hyperions. I can couple the 14 + 28 and convert the 10mm Hyperion into a 5.8 remove the 14mm ring and make a 6.7mm, worth the 14 ish pounds I paid for it Also, pick up this dew shield for £25. I'm 50/50 on its appearance but it's much needed. Edited July 24, 2015 by M__ Allan the Plumber 1 Link to comment Share on other sites More sharing options...
BAZ Posted July 25, 2015 Share Posted July 25, 2015 The dew shield is a must have really, there's nothing worse than having a good night cut short by dew. I wouldn't worry about how it looks, (which isn't bad) it will be dark anyway. Link to comment Share on other sites More sharing options...
tuckstar Posted July 25, 2015 Share Posted July 25, 2015 The fine tuning rings are great, but if you can try to set the focal length you want to use before you go out. I know that's not always practical but taking them to bits in the field can sometimes lead to heart ache. I have a bit of something on my 21mm but can't locate where it is after splitting it to use as a 32mm I have an 8mm which is kept with the 14mm tuning ring on all the time. Link to comment Share on other sites More sharing options...
M. Posted July 25, 2015 Share Posted July 25, 2015 The fine tuning rings are great, but if you can try to set the focal length you want to use before you go out. I know that's not always practical but taking them to bits in the field can sometimes lead to heart ache. I have a bit of something on my 21mm but can't locate where it is after splitting it to use as a 32mm I have an 8mm which is kept with the 14mm tuning ring on all the time. Have you noticed any drop off in performance using the rings? I'm assuming that it's similar to how a barlow works. I was thinking the same thing, Ive come close to dropping an eyepice allready and fastening these rings is risky business with my butter fingers lol Link to comment Share on other sites More sharing options...
tuckstar Posted July 25, 2015 Share Posted July 25, 2015 (edited) Don't know if image quality is lost as it's the only way I can get focus with such high mag due to not enough back focus. But the tuning ring acts as an extension tube meaning I can bring it to focus. Using a Barlow means extra glass and I don't have one, well not one I would use with these eyepieces anyway. Edited July 25, 2015 by tuckstar M. 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted July 26, 2015 Share Posted July 26, 2015 Smithysteve 1 Link to comment Share on other sites More sharing options...
Doc Posted July 26, 2015 Share Posted July 26, 2015 Nice Pete. Who makes it? Link to comment Share on other sites More sharing options...
Tweedledee Posted July 26, 2015 Share Posted July 26, 2015 (edited) Nice Pete. Who makes it? It is branded Explore Scientific, but it comes from the Kokusai Kohki factory. I will cut off the foot and convert it to a Synta It has this reticule marked in degrees... Edited July 26, 2015 by Tweedledee Link to comment Share on other sites More sharing options...
Doc Posted July 26, 2015 Share Posted July 26, 2015 You do like your finders don't you Pete Link to comment Share on other sites More sharing options...
Tweedledee Posted July 26, 2015 Share Posted July 26, 2015 You do like your finders don't you Pete Yep, fancied one of these erect image straight through finders for a while. Couldn't resist this half price bargain from Alabama, customer return with a tiny scratch on one side of the OTA Link to comment Share on other sites More sharing options...
Tweedledee Posted July 26, 2015 Share Posted July 26, 2015 As far as I know, it is the only piece of astro tackle to utilise a Pechan or (Schmidt) Prism not an Amici or erecting lens. It is comprised of a pair of prisms use in some types of binoculars. Google it. Link to comment Share on other sites More sharing options...
M. Posted July 27, 2015 Share Posted July 27, 2015 I do like that, thought it was the explore scientific as I'd been looking at that beast before. Link to comment Share on other sites More sharing options...
Doc Posted July 27, 2015 Share Posted July 27, 2015 (edited) As far as I know, it is the only piece of astro tackle to utilise a Pechan or (Schmidt) Prism not an Amici or erecting lens. It is comprised of a pair of prisms use in some types of binoculars. Google it. So a pechan prism inverts the image without deviating the line of sight so does this mean you do not get the diffraction spike you get in all prisms including the amici one. On high magnification work prisms normally suffer from a spike similar to what you see when using a scope with a spider. Edited July 27, 2015 by Doc Link to comment Share on other sites More sharing options...
Tweedledee Posted July 27, 2015 Share Posted July 27, 2015 I'd not heard of the Pechan before seeing this finder. If you search Pechan prism on Google images, look closely at the light paths, I think you'll find that there is still a point with a left/right flip that would cause a central diffraction spike. I doubt it will show up at 8x Apparently, the Baader amici is so good you can really push the power up before seeing a spike.. Link to comment Share on other sites More sharing options...
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