Popular Post +Graham Posted January 26, 2021 Popular Post Share Posted January 26, 2021 I will start by apologising to everyone for the forth coming rain and cloud. After a week of frustration my new baby a 10 inch carbon fibre truss tube RC has arrived. It really is a thing of beauty. The workmanship is absolutely stunning. The mirrors have a guaranteed rating of 1 /12 wave or better. Looking forward to getting this set up on the mount and having its first light. Things being true to form with new astro gear it started raining within the hour of its arrival and has not stopped since 😅 Side view. The big black lump in the centre is the primary mirror cover. The secondary also has its own cover. Rear of the scope has 3 fans mounted in the end plate for rapid cooling and keeping the dew at bay. The focuser is a 3 1/2 inch duel speed unit. The scope comes with 3 spacer rings that fit between the focuser and the back plate to allow adjustment to gain the correct back focus needed for any set up. The working end. Removed the primary cover to show the mirror. Bottletopburly, +Glafnazur, Smithysteve and 4 others 7 Link to comment Share on other sites More sharing options...
+Ibbo Posted January 26, 2021 Share Posted January 26, 2021 Seems to have settled in nicely and knicked your chair. Peter Shah and +Graham 2 Link to comment Share on other sites More sharing options...
+Graham Posted January 26, 2021 Author Share Posted January 26, 2021 To be honest Steve I cannot think of anywhere else to put it. Must have that clear out. Link to comment Share on other sites More sharing options...
+Bino-viewer Posted January 26, 2021 Share Posted January 26, 2021 That is a thing of beauty Graham. I'm glad to hear it has arrived safely. Kudos to FLO. If that is not a glowing recommendation for them, i don't know what is. These RC and CC scopes seem to be more popular than they were say, 10 years ago. I don't know a whole lot about them, other than the RCs seem to have a faster focal ratio of F8 for wider fields and the CCs seem to be around F12 for smaller fainter objects. Also the CCs have a Parabolic primary, like a regular Newtonian, and the RCs have a 'Hyperbolic' (whatever that means?) primary + secondary. Then theres the Tak Mewlons and Orion Optics ODKs that employ the Dall Kirkham design. All interesting stuff. I will endeavour to learn more about them, as its a subject of much interest to me. Is one design better than the other ? The Hubble Space Telescope is actually a RC design, so it must be good....!! Looking forward to seeing your first light results anyway 🙂🔭👍🏼 +Graham 1 Link to comment Share on other sites More sharing options...
+Graham Posted January 26, 2021 Author Share Posted January 26, 2021 The RC design wins out on the rest because it produces a flat field across the whole image plain without the need for any correction lenses, field flatteners or corrector plates. Thus you only have the 2 mirrors in the image train so brighter images. +Bino-viewer 1 Link to comment Share on other sites More sharing options...
+Ibbo Posted January 26, 2021 Share Posted January 26, 2021 35 minutes ago, Graham said: To be honest Steve I cannot think of anywhere else to put it. Must have that clear out. Don't we all. Link to comment Share on other sites More sharing options...
Peter Shah Posted January 26, 2021 Share Posted January 26, 2021 1 hour ago, Ibbo said: Seems to have settled in nicely and knicked your chair. Was going to ask if that mount was GoTo! philjay and +Graham 1 1 Link to comment Share on other sites More sharing options...
Nightspore Posted January 26, 2021 Share Posted January 26, 2021 Looks fantastic. Not so sure about the mount though lol. +Graham 1 Link to comment Share on other sites More sharing options...
+Graham Posted January 26, 2021 Author Share Posted January 26, 2021 26 minutes ago, Peter Shah said: Was going to ask if that mount was GoTo! With this weather we are having it is about as far as it is going to go 😂 Peter Shah 1 Link to comment Share on other sites More sharing options...
tuckstar Posted January 26, 2021 Share Posted January 26, 2021 Thats a thing of beauty. Looking forward to some first light images, when the cloud finally clears! +Graham 1 Link to comment Share on other sites More sharing options...
BAZ Posted January 26, 2021 Share Posted January 26, 2021 That's a work of art, stunning bit of engineering. Happy scope day Graham. +Graham 1 Link to comment Share on other sites More sharing options...
Bottletopburly Posted January 26, 2021 Share Posted January 26, 2021 Very niiiiice graham 👍 +Graham 1 Link to comment Share on other sites More sharing options...
Sheila Posted January 27, 2021 Share Posted January 27, 2021 Looks great. Only downside is it has a mirror 🤣 nice one 👍 BAZ, +Bino-viewer and +Graham 1 2 Link to comment Share on other sites More sharing options...
+RonC Posted January 27, 2021 Share Posted January 27, 2021 That looks great Graham, I had a 6" RC many years ago and wished I still had it! Looking forward to first light from you, weather permitting!! Ron +Graham 1 Link to comment Share on other sites More sharing options...
philjay Posted January 27, 2021 Share Posted January 27, 2021 Very nice Graham. Theres something about truss tubes that get me. These are OTA,s that appeal to engineers, space frames, trusses, plates with holes in them tgen to cap it all carbon fibre oooooohhhhh. I shall get my coat 😀 +Ibbo, +RonC, BAZ and 1 other 1 3 Link to comment Share on other sites More sharing options...
Brantuk Posted January 28, 2021 Share Posted January 28, 2021 Nice bit of kit Graham - can't wait to see your first results with it. 🙂 +Graham 1 Link to comment Share on other sites More sharing options...
Smithysteve Posted January 29, 2021 Share Posted January 29, 2021 Very nice piece of kit Graham! Looking forward to hearing more 👍 +Graham 1 Link to comment Share on other sites More sharing options...
philjay Posted January 30, 2021 Share Posted January 30, 2021 Remember for when you have so many scopes you cant get through the door and you want to down size Graham, I have first dibs on your F15 achro 😁 +Graham 1 Link to comment Share on other sites More sharing options...
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