dddhgg
sage
Reged: 08/03/07
Posts: 265
Loc: The Netherlands
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I'm in the process of buying one used (about six years old). Just wondering. To get all things straight: I'm talking about the ones they used to sell with the LXD55/75 mount.
Many thanks in advance!
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Meade 8" SCT (an older white-tubed version)
Celestron CG5 (non-GOTO)
Teleskop-service 30 mm WA
Teleskop-service 7-21 mm zoom
GSO 2" standard star diagonal
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sang33ta
professor emeritus
Reged: 07/08/08
Posts: 539
Loc: UK
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Just look at the ring around the front and it will say what coatings it has. 6 years old may not have UHTC but the pervious generation of coating.
I use a scope without coatings and the only difference I've noticed is that stars bloom faster in photography but hey im not a scientist looking for asteroids or doubles and that effect kinda looks nice on pictures 
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Hioptic 152mm f12.5 Maksutov
Celestron Advanced CG5-GT Mount (Mr Noisy!)
Meade 4000 Super Plossl Set
Casio QV-2900UX
Got fed up of waiting for Meade ETX-150 so put this together for £500/$1000
Edited by sang33ta (08/22/08 01:52 PM)
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RandallK
professor emeritus
Reged: 11/10/06
Posts: 713
Loc: Nanaimo, B. C. Canada
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My new (used) OTA is from the LXD75 series and it has a UHTC lable affixed to the tube and it says "Ultra High Contrast" on the rim of the corrector plate. This scope is just a year or so in age.
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Scopes: Meade SC-8AT w UHTC
SkyWatcher 5" F/5 Reflector
SkyWatcher 127mm MAK
Mount: HEQ5 Pro
Cameras: Orion Starshoot DS Colour Imager V.1
Imaging Source Webcam DMK21AU04.AS
Palm TX PDA w Astromist and Bluetooth wireles control.
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Zebra24601
Postmaster
Reged: 10/09/05
Posts: 7137
Loc: San Gabriel Valley, CA 91770
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Yes, my older (bought about two years ago, now when they cleared out the last of 'em) LXD55 also had the label on the tube and on the ring of the corrector plate.
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Zebra24601
Meade 8" SCT w/UHTC * Celestron 100ED * Celestron C11 * Barska 15x70 binoculars
Meade LXD55 mount * Orion Sirius goto mount * Bushnell Voyager 4.5" Compact Reflector
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dddhgg
sage
Reged: 08/03/07
Posts: 265
Loc: The Netherlands
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Thanks for all the answers, guys! I didn't see any reference to UHTC on the rim around the corrector plate, so I'll just assume that it doesn't have UHTC coatings. On the backside of the scope, however, there was a label which said "Multicoated Optics Group".
Does UHTC really have much impact, by the way?
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Meade 8" SCT (an older white-tubed version)
Celestron CG5 (non-GOTO)
Teleskop-service 30 mm WA
Teleskop-service 7-21 mm zoom
GSO 2" standard star diagonal
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RandallK
professor emeritus
Reged: 11/10/06
Posts: 713
Loc: Nanaimo, B. C. Canada
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I read somewhere where Meade claimed a 15% improvement over non-UHTC, but I haven't used my scope enough yet to draw any comparison.
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Scopes: Meade SC-8AT w UHTC
SkyWatcher 5" F/5 Reflector
SkyWatcher 127mm MAK
Mount: HEQ5 Pro
Cameras: Orion Starshoot DS Colour Imager V.1
Imaging Source Webcam DMK21AU04.AS
Palm TX PDA w Astromist and Bluetooth wireles control.
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GeorgeDuke
Pooh-Bah
Reged: 04/24/03
Posts: 1135
Loc: PARADISE! (So.Florida)
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From what I have been told, the UHTC is noticeable when imaging with CCD camera but hard to see visually.
One advantage of the coatings is that they are harder and protect the optics a little more than standard coatings.
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George
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LX200GPS 203mm f10
StellarVue SV102ED2 Feathertouch Ser#0018
Celestron 130mm f15.4 Mak
LXD75 GOTO with Orion 16" pier extension
Desert Sky DSV1 dual head ALT-AZ mount
Baader Hyperion 8mm ,13mm, 21mm and 8-24mm Zoom
2" GSO ED barlow, Orion 2" Prism Diag. 2" WO Dielectric
Chinese Scopes, Chinese Eyepieces, Chinese Wife, Love them all!
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Zebra24601
Postmaster
Reged: 10/09/05
Posts: 7137
Loc: San Gabriel Valley, CA 91770
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Quote:
Thanks for all the answers, guys! I didn't see any reference to UHTC on the rim around the corrector plate, so I'll just assume that it doesn't have UHTC coatings. On the backside of the scope, however, there was a label which said "Multicoated Optics Group".
Does UHTC really have much impact, by the way?
Yeah, MCOG is the pre-UHTC era.
As noted by others, visually, you're not likely to be able to detect a difference. It may make a difference in photography and resale value.
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Zebra24601
Meade 8" SCT w/UHTC * Celestron 100ED * Celestron C11 * Barska 15x70 binoculars
Meade LXD55 mount * Orion Sirius goto mount * Bushnell Voyager 4.5" Compact Reflector
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rmollise
Carpal Tunnel
Reged: 07/06/07
Posts: 1534
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Quote:
I'm in the process of buying one used (about six years old). Just wondering. To get all things straight: I'm talking about the ones they used to sell with the LXD55/75 mount.
Many thanks in advance!
No. There are a few white OTAs Meade sold in the early-mid 90s (on various GEMs) that do not have UHTC, having been made before it was introduced.
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Uncle Rod
Watch for Rod's New Book:
Choosing and Using the New CATs--coming soon!
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Jason B
Carpal Tunnel
Reged: 06/21/04
Posts: 2069
Loc: Mid-Michigan
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I do not belive the one sold with the LXB500 mount or whatever it was called had UHTC either.
Jason
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Jason
Discovery 12.5" F5 PDHQ
GSO 6" F5 Newt.
Vixen 80mm F8 APO (FL80S)
Vixen GP and Astro-Tech Voyager Mounts
MX 716 and Canon Rebel XT
Volunteer Administrator for Fox Park Observatory
16" and 12" LX200's
10" Meade and Parks Dobs
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jgraham
Postmaster
Reged: 12/02/04
Posts: 5313
Loc: Dayton, Ohio
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The real impact of UHTC coatings is probably fairly small. They're nice coatings, but not essential.
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-John
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Homebuilt scopes from 4.25-16.5"
Meade LXD75-N6/SN6/SC8, DSX-90, ETX-60BB, ETX-125PE, DS-2130
Orion StarBlast, BinoViewers, Coronado PST
Rebel XT/XTi, DSI Pro (I & II), DSI, LPI, Electronic Eyepiece, Phillips SPC900NC
Tasco 60mm Refractors
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rmollise
Carpal Tunnel
Reged: 07/06/07
Posts: 1534
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Quote:
I do not belive the one sold with the LXB500 mount or whatever it was called had UHTC either.
Jason
Well, yeah, the LXD500 (and 300) is a "various GEM"... 
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Uncle Rod
Watch for Rod's New Book:
Choosing and Using the New CATs--coming soon!
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Jason B
Carpal Tunnel
Reged: 06/21/04
Posts: 2069
Loc: Mid-Michigan
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Quote:
Quote:
I do not belive the one sold with the LXB500 mount or whatever it was called had UHTC either.
Jason
Well, yeah, the LXD500 (and 300) is a "various GEM"...
Guess I missed that in your post.  When I saw GEM, I was thinking the GEM series scopes they sold on the LXD650/750 mounts.
Jason
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Jason
Discovery 12.5" F5 PDHQ
GSO 6" F5 Newt.
Vixen 80mm F8 APO (FL80S)
Vixen GP and Astro-Tech Voyager Mounts
MX 716 and Canon Rebel XT
Volunteer Administrator for Fox Park Observatory
16" and 12" LX200's
10" Meade and Parks Dobs
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