Results 1 to 9 of 9
Like Tree17Likes
  • 12 Post By geethq
  • 1 Post By CamelHat
  • 1 Post By Don Quixote
  • 1 Post By yobbo89
  • 1 Post By John Baars
  • 1 Post By bladekeeper

Thread: Guiding EQ6-R Pro with 40lb(18kg) AP gear

  1. #1
    geethq's Avatar
    geethq is offline SUPER GIANT
    Points: 18,392, Level: 93
    Level completed: 73%, Points required for next Level: 108
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!First 1000 Experience Points
    Join Date
    Oct 2012
    Location
    Sri Lanka
    Posts
    903
    Points
    18,392
    Level
    93
    Thanks
    322
    Thanked 421x 309 Posts

    Post Guiding EQ6-R Pro with 40lb(18kg) AP gear



    I have posted a report about my new setup here First light for EQ6-R pro, 10" Orion Astropragh and Celestron 15x70 bino
    and few members were concerned about the SkyWatcher specified 20kg Astrophoto payload capacity for the mount and whether it can handle the 40lb 10" Newtonian and accessories in a usable way.
    I had my doubts too so i was eagerly waiting for clear skies to test it.

    Night sky was clear yesterday even though the moon was there so i have decided to test things.

    I had few problems setting up the mount and guiding.

    1st one is some kind of bug in the Synscan system. When i completed 2 or 3 star alignment and then select a star from list and try GOTO on it,
    mount hangs up (not slewing to target correctly) and after that the alignment is completely off. It was ok if i select a messier of something else but when i select a start, this happens.
    I was afraid this can be a big issue (its almost impossible to return the mount back from where i live) so i did a quick google.
    I couldn't find the exact issue but there were some posts about alignment accuracy issues and someone suggested factory resetting the hand controller and it worked!, I was so relieved.

    The 2nd issue was with the USB port coming with the new V5 Synscan hand controller, Its not identifying when connected to the PC. Its not a "plugin and play" USB device so i though they built the serial to USB converter inside the HC and installed the serial to USB driver (PL2303) and it started working.

    Setting up
    I cannot move large weights further down due to weights hitting tripod legs in low latitudes so it needs 3x11lb weights and 5lb weight to balance with the extension rod.



    I have ordered a 50mm guide scope for the setup but it was stopped and still at customs and i was too lazy to get it (100km round trip to regional customs office)
    so i have tested this 3D printed part which is connecting the 9x50 finder coming with the OTA and the ASI120MM mini mono camera.



    After a 3 star alignment and a polar alignment procedure on Synscan, I have connected things to the laptop and started working on guiding.
    It calibrated quickly and started guiding with 2.5sec exposures and default settings. I didn't do any drift alignment or tried the Synscan polar alignment procedure multiple times so the polar alignment
    was off but the guiding seems to work. I have started getting subs, started with 1min, 3min and then 5min and 8min. All gave perfect round stars. I was already happy since i knew the effort i need to put in to get 5-8min subs in AVX and EQ6-R was doing it without any effort.

    __________________________________________________ _____________________________________________

    __________________________________________________ ____________________________________________

    RMS total error was at 1 arc sec at this point and the Dec correction was big and one sided due to polar alignment error.
    I have measured it with Guiding Assistance and polar alignment was 45 arc minutes off.
    So i have started doing the Drift Alignment for the 1st time on PHD2. It was easier than i though once figured out.
    I was able to get the polar alignment error to near 1 arc min with it quickly.

    After PA, i have re-calibrated and ran GA again and applied its recommendations.
    I'm not sure this Declination backlash is normal or not. It was 25,000+ms on AVX so i know that its way better than AVX.
    __________________________________________________ _____________________________________________

    __________________________________________________ _____________________________________________

    Then I have started guiding and doing experiment stuff changing exposure time and settings. RMS went down further white doing tests.
    I have tried 10min and 15min exposures and got perfect stars as well.
    __________________________________________________ ________________________________________
    __________________________________________________ __________________________________________

    D5300 (no mod), 15min, ISO100, 100% crop, I had to reduce ISO to 100 to get 15min exposures with the Moon light pollution.



    After the tweaks i did a fresh graph and saw the RMS total values coming down to 0.6 arc-sec range which should be pretty good as i read.
    __________________________________________________ _____________________________________________

    __________________________________________________ _____________________________________________

    Conclusion
    Everything worked well above my expectations when it comes to guiding and accuracy of the mount with the 40lb(18kg) payload.
    RMS total error was down to 0.6-0.7 arc-sec range and It easily did 15min exposures, that's the longest i have tested.
    All the subs i took (3,5,8,10,15min for 3+ hours) had pinpoint stars even while changing settings and testing stuff.
    So i'm very happy with the mount and the setup. Can't wait to check it on a clear day without moon interfering.

    I'm not an expert in PHD2 graph reading so if anyone has any comments on what you see in these graphs/patterns, please let me know. All i know is lower the RMS is the better.
    Everything was done on a day after the full moon so the results may very (get better?) on a clear day with good seeing.

    Logs and Subs

    PHD logs (need phdlogview to see)

    before PA
    https://www.dropbox.com/s/k6dsk5cmkf...05214.txt?dl=1
    after PA
    https://www.dropbox.com/s/119vefp130...05621.txt?dl=1

    Subs (JPG, ask if need raw. they are large)

    5min
    https://www.dropbox.com/s/7xl6xavi03..._0031.jpg?dl=1
    10min
    https://www.dropbox.com/s/zz84pm5c6t..._0036.jpg?dl=1
    15min
    https://www.dropbox.com/s/mrphvijvnz..._0042.jpg?dl=1


    Sorry about the long post.
    Wish you guys All the best for Chtistmas and New Year!

    jaetea, CamelHat, Peppy2 and 9 others like this.
    Astrobin: https://
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    color="#b22222">Telescope: 10" F3.9 Orion Astrograph on Skywatcher EQ6-R Pro
    Camera: Nikon D5300a + Optolong 2" UV/IR cut with Baader MPCC mark III Coma Corrector
    Guiding: 50mm Orion scope, ASI120MM mini camera
    Planetary: QHY5III 224C, Tele vue 5X Powermate, ZWO ADC, GSO 3X ED and 5X APO barlow
    Accessories: Laser Collimator, DIY Dew shields and heaters, Celestron 15x70 Bino

  2. The Following 7 Users Say Thank You to geethq For This Useful Post:

    bladekeeper (12-25-2018),CamelHat (12-24-2018),Don Quixote (12-24-2018),kingclinton (12-24-2018),Peter802 (12-25-2018),Shelldrake (12-27-2018),SpyderwerX (12-24-2018)

  3. #2
    CamelHat's Avatar
    CamelHat is offline Bronze Supporter
    Points: 52,475, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 21.0%
    Achievements:
    50 Posts Achievement!5 Threads Achievement!First 1000 Experience Points2 Posts Achievement20 Posts Achievement!
    Join Date
    Dec 2011
    Location
    Santa Barbara, CA
    Posts
    5,809
    Points
    52,475
    Level
    100
    Thanks
    1,170
    Thanked 1,720x 1,388 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    That's great news, I would be envious of such good guiding. Glad to be proven wrong about the mount's capacity, and a merry christmas to you too!
    geethq likes this.
    ... Henk. Telescopes: 6" Mak-Newt (Comet Hunter), ES ED127CF, ES ED80, Zhumell Z12, Coulter Odyssey 10, AT6RC, Venture RX-7, Celestron Skymaster 20x80, Mounts and tripod: Losmandy G11S, AVX, LXD55, Tiltall, Cameras: Fuji X-a1, Canon SX40, Xt, XSi, T6, ELPH 100HS, DIY: Dob and camera barndoor trackers, afocal adapter, Dob with foldable base and Az/Alt setting circles, Accessories: SSAG, Plossls, Barlows, Telrad, laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software: DSS, ImageMagick, PHD, Nebulosity, Photo Gallery, Gimp, CHDK

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

  4. #3
    Don Quixote's Avatar
    Don Quixote is offline HYPER GIANT
    Points: 10,400, Level: 70
    Level completed: 50%, Points required for next Level: 150
    Overall activity: 3.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!5 Threads Achievement!
    Join Date
    Jun 2018
    Location
    Illinois.
    Posts
    1,571
    Points
    10,400
    Level
    70
    Thanks
    1,284
    Thanked 842x 612 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    This is very good news, geethq!
    Dang !
    Merry Christmas and Happy New Year back at you.
    And thank you for this operational update.
    geethq likes this.
    Telescope: Mak; 127, Meade 8 LXD75, Fracs; ES127mmFcd100,ES80Essential, SW 100ED Evostar, Skychief 60mmF15. Mount: cg4, az/eq5, slt, lxd75, farpoint Para. EP: Doctor 12.5 UWA, Pentax 7-14XW, KK Ortho 4-25, Meade Plossl x3, TV 22Panoptic, Leitz 10X,12.5X, Leica 10X25 HC, Bits of other glass. Binoculars: 8x43 Pentax, 10X30 Swarovski, 25X100 Oberwerk.Cam;Nikon d90, Nikon d810.
    "The pendulum of the mind oscillates between sense and nonsense"
    "Gratuitus affermations of a dominant theory can mesmerize the unwary."

  5. #4
    yobbo89's Avatar
    yobbo89 is offline HYPER GIANT
    Points: 20,849, Level: 99
    Level completed: 70%, Points required for next Level: 151
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!Gallery Achievement!
    Join Date
    Nov 2015
    Location
    brisbane
    Posts
    2,312
    Points
    20,849
    Level
    99
    Thanks
    141
    Thanked 544x 466 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    very nice!
    geethq likes this.

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    :gso/bintel f4 12"trust tube, bresser
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ar127s /
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    10'' dob
    cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7
    mounts : eq6 pro/eq8
    filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, Thousand Oaks Solar Filter.
    extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Corrector,
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel

  6. #5
    John Baars's Avatar
    John Baars is offline Bronze Supporter
    Points: 18,534, Level: 94
    Level completed: 9%, Points required for next Level: 366
    Overall activity: 0%
    Achievements:
    20 Posts Achievement!2 Posts AchievementGallery Achievement!Album Achievement!5 Threads Achievement!
    Join Date
    Sep 2017
    Location
    Schiedam, Netherlands
    Posts
    1,407
    Points
    18,534
    Level
    94
    Thanks
    1,404
    Thanked 1,239x 722 Posts
    Blog Entries
    7

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    Congrats on this successful try-out. Well done!
    geethq likes this.
    Telescopes in Schiedam : SW 150 F/5 Achromat, SW Evostar 120ED F/7.5, Vixen 102ED F/9, OMC140 maksutov F/14.3, SW 102MAK F/13 on Vixen GPDX.
    Binoculars: AusJena 10X50 Jenoptem, Swarovski Habicht 7X42, Celestron Skymaster 15X70, Swift Observation 20X80.
    Astronomical Rijswijk observatory telescopes: Astro-Physics Starfire 130 f/8 on NEQ6, 6 inch Newton on GP, C8 on NEQ6, Meade 14 inch SCT on EQ8, Lunt.
    Amateur since 1970.

  7. #6
    geethq's Avatar
    geethq is offline SUPER GIANT
    Points: 18,392, Level: 93
    Level completed: 73%, Points required for next Level: 108
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!First 1000 Experience Points
    Join Date
    Oct 2012
    Location
    Sri Lanka
    Posts
    903
    Points
    18,392
    Level
    93
    Thanks
    322
    Thanked 421x 309 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    Quote Originally Posted by CamelHat View Post
    That's great news, I would be envious of such good guiding. Glad to be proven wrong about the mount's capacity, and a merry christmas to you too!
    Quote Originally Posted by Don Quixote View Post
    This is very good news, geethq!
    Dang !
    Merry Christmas and Happy New Year back at you.
    And thank you for this operational update.
    Quote Originally Posted by yobbo89 View Post
    very nice!
    Quote Originally Posted by John Baars View Post
    Congrats on this successful try-out. Well done!
    thank you guys
    Astrobin: https://
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    color="#b22222">Telescope: 10" F3.9 Orion Astrograph on Skywatcher EQ6-R Pro
    Camera: Nikon D5300a + Optolong 2" UV/IR cut with Baader MPCC mark III Coma Corrector
    Guiding: 50mm Orion scope, ASI120MM mini camera
    Planetary: QHY5III 224C, Tele vue 5X Powermate, ZWO ADC, GSO 3X ED and 5X APO barlow
    Accessories: Laser Collimator, DIY Dew shields and heaters, Celestron 15x70 Bino

  8. #7
    bladekeeper's Avatar
    bladekeeper is online now Super Moderator
    Points: 307,705, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 100.0%
    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
    39,055
    Points
    307,705
    Level
    100
    Thanks
    29,138
    Thanked 17,686x 12,112 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    Sounds amazing, Geeth! Congrats on your success!

    All the best to you for the holidays as well!
    geethq likes this.
    Bryan

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

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    f/5; Celestron C6-R f/8; ES AR127 f/6.4; ES AR127 f/9.4; Stellarvue SV102T f/7; ES AR102 f/9.8;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    MC90 f/13.3;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST80A f/5; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Unitron Model 142 f/16; Meade NG60 f/10
    Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    Eyepieces: GSO Super Plössl 40mm, 32mm, 15mm, 9mm; ES 82° Series; GSO Superview 30mm; Celestron Plössl 26mm, 20mm; ES 70° 25mm; ES Plössl 25mm; Vite Aspheric 23mm, 10mm, 4mm; Orion Expanse 20mm, 9mm; KK Ortho 18mm, 12.5mm; Bresser 70° 15mm; Coulter Optical 12.5mm; BCO 10mm; ES 62° 9mm; Zhumell Z Series 5mm
    Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    12×60 LW, Gordon 10×50, Apogee 20×100

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


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

    Galaxy Hunter's Creed - When you play whack-a-mole, sometimes you hit 'em on the head, sometimes you miss 'em. But its always fun to play, and if you don't play, you ain't gettin no moles! - KT4HX

  9. The Following User Says Thank You to bladekeeper For This Useful Post:

    geethq (12-26-2018)

  10. #8
    KathyNS's Avatar
    KathyNS is offline Super Moderator
    Points: 173,468, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 70.0%
    Achievements:
    200+ Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!First 1000 Experience Points400+ Posts AchievementGot three Friends
    Awards:
    Reply Award
    Join Date
    Nov 2010
    Location
    Nova Scotia
    Posts
    25,193
    Points
    173,468
    Level
    100
    Thanks
    6,660
    Thanked 14,989x 9,545 Posts
    Blog Entries
    3

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    Well done, geethq! You are definitely pushing the limit with that big scope on a 40-lb mount, but it looks like you have done it successfully. Your guiding, and your interpretation of the guiding graphs looks excellent.

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


    DSO AP:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    (pier);
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    .

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

  11. #9
    geethq's Avatar
    geethq is offline SUPER GIANT
    Points: 18,392, Level: 93
    Level completed: 73%, Points required for next Level: 108
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!First 1000 Experience Points
    Join Date
    Oct 2012
    Location
    Sri Lanka
    Posts
    903
    Points
    18,392
    Level
    93
    Thanks
    322
    Thanked 421x 309 Posts

    Default Re: Guiding EQ6-R Pro with 40lb(18kg) AP gear

    Quote Originally Posted by KathyNS View Post
    Well done, geethq! You are definitely pushing the limit with that big scope on a 40-lb mount, but it looks like you have done it successfully. Your guiding, and your interpretation of the guiding graphs looks excellent.
    thank you very much for checking them!
    Astrobin: https://
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    color="#b22222">Telescope: 10" F3.9 Orion Astrograph on Skywatcher EQ6-R Pro
    Camera: Nikon D5300a + Optolong 2" UV/IR cut with Baader MPCC mark III Coma Corrector
    Guiding: 50mm Orion scope, ASI120MM mini camera
    Planetary: QHY5III 224C, Tele vue 5X Powermate, ZWO ADC, GSO 3X ED and 5X APO barlow
    Accessories: Laser Collimator, DIY Dew shields and heaters, Celestron 15x70 Bino

 

 

Similar Threads

  1. Perseids: Ultra-wide field 8mm fisheye imaging - guiding or no guiding?
    By Robert Westbrook in forum Astronomy Digital Cameras Forum
    Replies: 0
    Last Post: 08-12-2017, 01:35 AM
  2. What is ST-4 guiding, and what is ASCOM guiding?
    By TareqPhoto in forum Astronomy Beginners Forum
    Replies: 10
    Last Post: 06-27-2017, 12:00 AM
  3. Guiding rates in case of guiding without using ST4 port
    By kruno in forum Astro Imaging Forum
    Replies: 1
    Last Post: 01-26-2016, 01:59 PM
  4. Replies: 35
    Last Post: 03-10-2013, 02:24 PM
  5. Is there any gear I should add?
    By Thermodynamics in forum Astronomy Beginners Forum
    Replies: 12
    Last Post: 08-05-2010, 06:14 PM

Tags for this Thread

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 12:43 AM.