Page 1 of 2 12 LastLast
Results 1 to 10 of 17
Like Tree28Likes

Thread: Astro-Tech AT72ED First Impression

  1. #1
    Rogan's Avatar
    Rogan is online now Bronze Supporter
    Points: 11,100, Level: 72
    Level completed: 84%, Points required for next Level: 50
    Overall activity: 18.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!200+ Posts Achievement!
    Join Date
    May 2015
    Location
    Georgia, north of ATL
    Posts
    1,329
    Points
    11,100
    Level
    72
    Thanks
    104
    Thanked 212x 184 Posts
    Downloads
    1
    Uploads
    0

    Default Astro-Tech AT72ED First Impression



    The AT72ED arrived yesterday. I got lucky finding this one. The waiting lists are pretty constant. They come into the country to Astronomics and by the time that the waiting lists are filled there seem to be few left. With only wait lists finding this one used took a bit of effort. I placed a wanted ad at the Cloudy Nights classifieds. A day later I had a response. As the scope was pretty much new in box I actually offered more than the seller wanted. He kindly only took what he wanted but I would have paid more. He had only had it since October and had seen very little if any use. It had certainly not been attached to a dovetail.

    After unboxing and opening its metal case my first thought was "holy smokes". To date I have never held a better built piece of equipment. This thing exudes quality. For only 14.5 inches long it's quite heavy for its size. That's because the construction is as robust as one could ask for. As solid as a rock. As to the finish, it's perfect. The deep glossy black is flawless. There have been reports of fading with other colors (blue, green, red) but the black seems immune. Mechanically it's top drawer. The 2" two speed Crayford is the best that I have experienced. The course wheel is a bit on the firm side but I will be less likely to overshoot my focus. It could be adjusted but I will leave it be. The 11:1 fine focus is perfect. The knobs are nicely sized. While I don't do AP it seems likely to me that the focuser could handle a good amount of weight. The focuser tube is calibrated. The retractable dew shield glides smoothly and stays put in its extended position. Overall, fit, finish, construction, and mechanical are as good as I could ever want. If I didn't know and someone told me that this OTA retailed for $400 I wouldn't believe them.

    I suppose that the main reason why the scope isn't more costly is that the 72mm doublet uses FPL-51 rather than the vaunted FPL-53. I'm okay with that. A little CA is going to creep in at the highest powers and with the very brightest objects, but based on many reviews and user reports it isn't at all a concern. It might be more of a concern for AP, but the photos taken with it and its popularity for imaging lead me to believe that if I ever get into AP (heaven forbid) it will be a nice starting point. Not having used the scope yet all I can comment upon is that the coatings on the glass look wonderful. The inside is nicely blackened with three baffles.

    The attached foot offers mounting 1/4-20 on a tripod or through its Vixen dovetail profile. My use will be primarily on a Twilight I and the short dovetail foot doesn't thrill me. It's not a lot of real estate. To rectify the issue I decided to add to the dovetail. While the scope was in transit to me so was a red 8" William Optics dovetail plate from Agena Astro. By coincidence both landed on the same day. As it turned out I had to drill and countersink new mounting holes on the plate to get the right positioning. I also had to shorten the plate to allow the focuser to rotate free and clear. By loosening the top thumb screw the focuser rotates 360 degrees. This is key when using a mount like the Twilight I if you want to keep your focuser knobs horizontal.

    First light to follow.

    IMG_0274 (1).JPG
    IMG_0275 (1).JPG
    IMG_7463.JPG
    IMG_7462.JPG
    "I've... seen things you people wouldn't believe; attack ships on fire off the shoulder of Orion; I've watched C-beams glitter in the dark near the Tannhauser Gate. All those... moments... will be lost... in time, like... tears... in rain."

  2. #2
    Gabby76's Avatar
    Gabby76 is online now HYPER GIANT
    Points: 31,543, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 99.8%
    Achievements:
    2 Posts Achievement20 Posts Achievement!Gallery Achievement!Album Achievement!50 Posts Achievement!
    Awards:
    Hyperactive Geek - Silver 2rst place for Activity!
    Join Date
    Jan 2016
    Location
    Svätý Jur, Slovakia
    Posts
    7,550
    Points
    31,543
    Level
    100
    Thanks
    1,115
    Thanked 2,146x 1,953 Posts
    Blog Entries
    3
    Downloads
    1
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    A nice looking scope Rogan, congratulations and I hope it works very well for you
    Scopes: Antares Elite (Vixen Spec) 105mm f/15 (AIM-9), Modified SLT 102mm f/6.5 (Abe Normal), 2 Modified 150mm f/8 doublet (Frankencannon & Beefractor), Stellarvue NHNG DLX 80mm f/6.9, Vixen ED 115S f/7.7 (Raquel), Home made 150mm f/5 Newt
    Mounts: Manfrotto 055 Pro/ 128RC, Modified SLT, EQ-2, EQ-5, Tuned CG-5 w/ Argo Navis, Tuned ASGT, SXP w/ SB10 Binoculars: Vixen Ascot 10x50, Celestron Skymaster 15x70

    Eyepieces: An embarrassing amount of highly polished and coated glass mostly under 50°


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

  3. #3
    bladekeeper's Avatar
    bladekeeper is online now Super Moderator
    Points: 149,324, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 99.9%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Activity Award
    Join Date
    Aug 2014
    Location
    Lowell, Arkansas, USA
    Posts
    24,205
    Points
    149,324
    Level
    100
    Thanks
    17,675
    Thanked 10,012x 7,122 Posts
    Downloads
    7
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Very nice! Looks like a fine scope, Rogan. Man, I'd love to see a "family portrait" image of all your scopes together.
    Bryan
    Scopes: Apertura AD12, RACI/Telrad; ES AR127, RACI/Rigel QF, Twilight II; Orion ST80, Twilight I; iOptron MC90 Mak, Cube-G Mount; Meade Telestar NG60
    Eyepieces: GSO Superview 30mm; ES 70° 25mm; ES 82º Series; GSO 9mm Plössl; Zhumell Z Series 5mm; Vite Aspherics 23mm, 10mm, 4mm; Orion Expanse 20mm, 9mm
    Binoculars: Pentax PCF WP II 10x50, Bresser Corvette 10x50, Bresser Hunter 16x50 and 8x40, Garrett Gemini 12x60 LW, Gordon 10x50
    Observing: Herschel Tallies: H1 = 400/400 H2 = 266/400 H3 = 157/300; 2,386 observations of 1,465 objects; Led Zeppelin


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
    Days since last observing session: 4

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.


  4. #4
    j.gardavsky's Avatar
    j.gardavsky is online now Super Moderator
    Points: 69,625, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 42.0%
    Achievements:
    Ghost Achievement! Averaging 5+ posts a day!200+ Posts Achievement!400+ Posts AchievementFirst 1000 Experience Points365 Days+ Registered Achievement!
    Join Date
    Feb 2011
    Location
    Germany
    Posts
    9,647
    Points
    69,625
    Level
    100
    Thanks
    7,683
    Thanked 5,637x 3,641 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Congrats Rogan!,

    it's looking great, I can also see the fine baffles through the front lens.
    You should keep it safe in silk, and handle with gloves.
    Best,

    JG
    neal_mlc likes this.
    Binoculars: Leica Ultravid 7x42; Swarovski EL 8.5x42 Swarovision; Carl Zeiss Jena 7x50W and 10x50W; BA8: 10.5x70, 15x85; 25x100FB Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW asph); EPs:Baader Classic Orthos; Leica WW; Tele Vue; Swarovski SW; Pentax XW; ZEISS W & Zeiss diascope B WW T*; UWAN; Filters: Astrodon, Astronomik, Baader (CCD), TS; Astrophotography: AstroTrac; Leica cameras R7, R8: Leica 2.8/100mm and 3.4/180mm APO lenses; Zeiss Sonnar 4/300 on Nikon F70;
    Astronomy Forum Rules and Terms of Service
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

  5. #5
    Bigzmey's Avatar
    Bigzmey is online now HYPER GIANT
    Points: 14,085, Level: 81
    Level completed: 82%, Points required for next Level: 65
    Overall activity: 36.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Join Date
    Sep 2015
    Location
    San Diego, California, USA
    Posts
    2,927
    Points
    14,085
    Level
    81
    Thanks
    665
    Thanked 951x 761 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Cute little guy. Gratz and enjoy!
    Scopes: Celestron 8" SCT F10, ES 127mm CF APO F7.5, Orion 120ST/F5 Achro. Mounts: ES Twilight I, Bresser EXOS2, Orion VersaGo II. Binos: Orion 10x50, Celestron 8x42. EPs: TeleVue: Plossls 11-15-20-32mm, 2x-3x barlows; ES: 82o 4.7-6.7-8.8-11mm, 68o 16-20-24mm; Baader: BCO 6-10-18mm, Aspheric 31-36mm, Q-barlow; Meade: UWA 14mm; Celestron: 0.63 reducer, X-Cel LX 5-7-9-12-25mm, Luminos 7-10-15mm; GSO SV 42mm. Filters: Zhumell: UHC, OIII; Baader: UHC-S, M&SG, CB; Orion: SG, H-beta; Lumicon: OIII, H-beta; DGM: NPB.
    DSO tally: 575; H400-1: 264, H400-2: 56; M110: 110, S110: 36, Doubles: 307, Comets: 2
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

  6. #6
    Rogan's Avatar
    Rogan is online now Bronze Supporter
    Points: 11,100, Level: 72
    Level completed: 84%, Points required for next Level: 50
    Overall activity: 18.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!200+ Posts Achievement!
    Join Date
    May 2015
    Location
    Georgia, north of ATL
    Posts
    1,329
    Points
    11,100
    Level
    72
    Thanks
    104
    Thanked 212x 184 Posts
    Downloads
    1
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Quote Originally Posted by bladekeeper View Post
    Very nice! Looks like a fine scope, Rogan. Man, I'd love to see a "family portrait" image of all your scopes together.
    Well, my IPhone camera does have a panorama setting...
    "I've... seen things you people wouldn't believe; attack ships on fire off the shoulder of Orion; I've watched C-beams glitter in the dark near the Tannhauser Gate. All those... moments... will be lost... in time, like... tears... in rain."

  7. #7
    Rogan's Avatar
    Rogan is online now Bronze Supporter
    Points: 11,100, Level: 72
    Level completed: 84%, Points required for next Level: 50
    Overall activity: 18.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!200+ Posts Achievement!
    Join Date
    May 2015
    Location
    Georgia, north of ATL
    Posts
    1,329
    Points
    11,100
    Level
    72
    Thanks
    104
    Thanked 212x 184 Posts
    Downloads
    1
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Quote Originally Posted by j.gardavsky View Post
    Congrats Rogan!,

    it's looking great, I can also see the fine baffles through the front lens.
    You should keep it safe in silk, and handle with gloves.
    Best,

    JG
    It does show fingerprints rather easily
    j.gardavsky likes this.
    "I've... seen things you people wouldn't believe; attack ships on fire off the shoulder of Orion; I've watched C-beams glitter in the dark near the Tannhauser Gate. All those... moments... will be lost... in time, like... tears... in rain."

  8. #8
    sketrip's Avatar
    sketrip is online now Muad'Dib
    Points: 9,957, Level: 69
    Level completed: 3%, Points required for next Level: 293
    Overall activity: 54.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!Gallery Achievement!
    Join Date
    Apr 2015
    Location
    NE Kansas
    Posts
    1,137
    Points
    9,957
    Level
    69
    Thanks
    825
    Thanked 435x 304 Posts
    Downloads
    11
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    That is a beautiful instrument-I'd be afraid to take it out of the case..... almost.
    Congratulations!
    AD10- 9X50 RACI Red Dot, AR127 & ST80 Twilight I & SW AZEQ6 GT Mounts
    ES82 11 18 24, ES100 5.5 9 14 20, BCO 6mm, MK III Zoom, 12mm Astrometric, Vortex 10X50
    SkyTools 3 & SkySafari, ZWO ASI224MC
    MELObservatory "If the sword could remember the forge it might be grateful to it, but never fond of it" Rand al'Thor
    "Some men would call it brash, foolhardy, suicidal. The world was rarely changed by men who were unwilling to try being at least one of the three" al'Lan Mandragoran

  9. #9
    Purdyd's Avatar
    Purdyd is offline HYPER GIANT
    Points: 14,782, Level: 83
    Level completed: 81%, Points required for next Level: 68
    Overall activity: 15.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Join Date
    Apr 2015
    Location
    Southern California, USA
    Posts
    2,077
    Points
    14,782
    Level
    83
    Thanks
    323
    Thanked 453x 416 Posts
    Blog Entries
    4
    Downloads
    4
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Way cool! Please don't write such a glowing review next time. I have enough equipment.
    neal_mlc, DeanD and Peppy2 like this.
    My Name: David
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

    My sky:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

    My scopes:William Optics FLT 98 Flattener 4 - Celestron Edge HD 8" SCT - x0.7FR - hyperstar -Celestron OAG Lunt 60mm B1200PT
    My mounts:Celestron Advanced VX TPI spreader, iOptron IEQ45 tri-pier
    My cameras: ASI 174MM cooled, ASI 174MC, Nikon D800
    My eyepieces:31mm Nagler, 25mm ES, 20mm ES, 13mm Ethos

  10. #10
    nicoyenny's Avatar
    nicoyenny is offline Bright Giants
    Points: 2,931, Level: 35
    Level completed: 21%, Points required for next Level: 119
    Overall activity: 8.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!200+ Posts Achievement!
    Join Date
    Jul 2015
    Location
    Orange County
    Posts
    492
    Points
    2,931
    Level
    35
    Thanks
    1
    Thanked 116x 100 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Astro-Tech AT72ED First Impression

    Beautiful scope!!!
    Looking forward for your first light report
    BTW, I can see blue skies!!!(after 2 weeks of clouds/fog and a glorious rain last night) , clouds are moving somewhere else
    Scopes: 1- Astro-Tech 8" Astrograph newt. 2- Celestron C8 3- Explore Scientific AR-102 4- Explore Scientific ED80 5- AWB One Sly baby newt 6- No-name guiderscope
    Binos: 1- Zhumell 25x100 monster binos 2- Harbor Freight $20 incredibly good binos
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

    Mounts: 1- Celestron AVX 2- Celestron CG-4 with drives 3- Explore Scientific Twilight I
    Eyepieces: 1- ES 82 14, 11, 4.7 2- ES 68 34, 24 3-AstroTech ED 25 & 5 4-Baader Hyperion 14 & 8 5- Celestron plossl ...many, down to 6 6- Agena zoom 7- Etc.
    MIsc other gear that fills all the space in my truck when loading for observation ...

 

 
Page 1 of 2 12 LastLast

Similar Threads

  1. Which would you go with - Astro Tech at72ed or at80ed?
    By Dkilzer2000 in forum Refractor Telescopes Forum
    Replies: 2
    Last Post: 10-31-2013, 06:38 PM
  2. First light??? with Astro-Tech AT72ED
    By mkline in forum Refractor Telescopes Forum
    Replies: 6
    Last Post: 07-03-2013, 11:55 PM
  3. First light image with new Astro-tech AT72ED
    By Mikek314 in forum Astrophotography Forum
    Replies: 19
    Last Post: 08-15-2012, 03:23 PM
  4. Astro-Tech AT72ED 72mm f/6 ED doublet
    By ChuckWalters in forum Refractor Telescopes Forum
    Replies: 16
    Last Post: 04-02-2012, 05:36 PM
  5. For Sale: Astro Tech AT72ED
    By Pingu in forum Astronomy Classifieds
    Replies: 10
    Last Post: 11-15-2011, 01:10 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 09:57 PM.