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Thread: Celestron 130 SLT

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    Roofjac's Avatar
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    Default Celestron 130 SLT



    New here and looking for info on using my 130 SLT for pictures of the night sky.
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    Default Re: Celestron 130 SLT

    Welcome to the form!!

    You will need to use a different camera than a DSLR if you plan to image through your scope, it will not bring a DSLR to focus without modifying it by moving the mirror closer to the focuser. You can get one of the newer CMOS cameras like a ZWO or you can take the scope off the mount, get a "L" shaped dovetail bar, and mount a DSLR directly to the mount for some wide field AP. But anything you do on that mount will be limited to less than 30 seconds because of field rotation on an Alt/Az mount.
    Macrob1 and Gaff like this.
    LX200 ACF 8"SCT(Supercharged), Apertura AD12, Celestron C6A SCT, ES 102CF Apo triplet, ES AR102, ST90, Apex 90mm Mak, ST80(modified), ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips webcam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

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    Default Re: Celestron 130 SLT

    OK, I thought if I used a Barlow 1.25 and an T adapter ring I could mount camera to telescope. Guess I will rethink taking pictures using the telescope.
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    Default Re: Celestron 130 SLT

    You will not get it to focus a DSLR with a 1.25x Barlow. You may get it to focus with a 2x Barlow but there are SERIOUS issues with this. It doubles the focal length making all tracking errors worse. It quadruples exposure time needed. These two things alone make for a BAD, BAD combination. And then on top of that, the focuser is not up to the task of supporting a DSLR, much less one stuck out on a Barlow. You really do need to reconsider going with this approach.

    If you want to start AP with a DSLR, get a robust ($$s) EQ mount. For AP the mount is PARAMOUNT and a short refractor is the easiest and best scope to use.
    Macrob1 and Gaff like this.
    LX200 ACF 8"SCT(Supercharged), Apertura AD12, Celestron C6A SCT, ES 102CF Apo triplet, ES AR102, ST90, Apex 90mm Mak, ST80(modified), ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips webcam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

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    Default Re: Celestron 130 SLT

    Hi and welcome to the forum. Excellent and expert advice you've received from Ozman already - this is what the forum is all about
    Gaff likes this.
    Bob

    Scopes: Skywatcher Star Discovery Mak 127 + SW 9x50 RACI on SynScan alt/az go-to mount; Saxon ST80 Eyepieces: SW kit 25mm, Starguider ED 8mm and 15mm, SW 19mm flat field, SW 32mm Plossl, Svbony 12.5 mm illuminated reticle Barlows: SW 2x, Celestron Omni 2x Binoculars: Acuter 15x70, Olympus 10x50 DPSI, Celestron 10x25

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    Default Re: Celestron 130 SLT

    If you have a DSLR, you can get it to focus without a Barlow lens by moving the main mirror forward a little. This is very easy to do with some inexpensive hardware changes. See the following sticky for info on how to do this: How to correct Celestron Nexstar 130 slt focus for Astrophotography. If you have a mirrorless interchangeable-lens camera (eg micro 4/3), you may only need a low profile T-ring to achieve focus. Likewise with a ccd camera you will not need to move the main mirror.
    Gene
    Telescopes: Meade Star Navigator 102; Celestron 102GT, 60LCM, C80ED, Omni XLT 150 and Az 114; Sky-Watcher 90 MAK; Apertura 10" Dob; Orion StarSeeker IV 80mm
    Mounts: Celestron CG-5, Nexstar GT, SkyProdigy; iOptron Smart EQ Pro; Orion Starseeker IV
    Cameras: Olympus E-PL1, Canon T3i, Canon T5(full spectrum modified)
    Accessories: Baader 2" MPCC, IDAS LPS-D1 Filter, William Optics P-F6A-GT81 reducer/flattener, Orion MM AutoGuider

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    Default Re: Celestron 130 SLT

    Thanks for your help. You have probably saved me time, frustration and money and this is my second day here. Thanks to all.

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    Default Re: Celestron 130 SLT

    Hi,

    I, too, was looking at buying the 130SLT with a view to both visual observing and a dabble at taking a few photos. I also read that there are Barlow adapters that will work with the focus constraints of the 130SLT --- T- Mount (Look at the review)

    I didn't buy one I sacrificed an inch of aperture for a second output port on the 4SE. I can connect my DSLR directly to the 2nd port and switch between the camera and optical output - sounds great - however there is a BUT. - Switching between the 2 requires a large amount of refocusing and focussing through a DSLR isn't easy.

    I still use a T mount adapter for eyepiece projection which works well on planets.

    One option I am now looking into is a way of "Piggyback" mounting my DSLR to the telescope. Finding the object using the goto mount and 'scope the using the camera with (70-200mm in my case) lens attached to take the photo. Better for wide field!

    Might be worth looking into this as an alternative.

    Cheers

    MZ

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    Default Re: Celestron 130 SLT

    Quote Originally Posted by ManixZero View Post

    One option I am now looking into is a way of "Piggyback" mounting my DSLR to the telescope. Finding the object using the goto mount and 'scope the using the camera with (70-200mm in my case) lens attached to take the photo. Better for wide field!
    Get an "L" shaped dovetail bar and attach the camera directly onto the mount without the scope instead of piggybacking on the scope. Much more stable with better results and doesn't strain the mount.
    ProfEclipse likes this.
    LX200 ACF 8"SCT(Supercharged), Apertura AD12, Celestron C6A SCT, ES 102CF Apo triplet, ES AR102, ST90, Apex 90mm Mak, ST80(modified), ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips webcam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

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    Default Re: Celestron 130 SLT

    Here are some pictures taken with the 130SLT using various types of cameras (web cams, planetary imagers, micro 4/3, DSLRs) or using the telescope's mount to track with a camera attached to an L-shaped dovetail bar as suggested by Ozman13: https://www.flickr.com/search/?text=130slt.

    Moving the main mirror forward requires that you are comfortable readjusting the main mirror support screws. I think I have a spare set of hardware as listed in posts 18 and 19 in the link I gave in my previous post that I could send you for free if you wanted to attempt this.
    Gene
    Telescopes: Meade Star Navigator 102; Celestron 102GT, 60LCM, C80ED, Omni XLT 150 and Az 114; Sky-Watcher 90 MAK; Apertura 10" Dob; Orion StarSeeker IV 80mm
    Mounts: Celestron CG-5, Nexstar GT, SkyProdigy; iOptron Smart EQ Pro; Orion Starseeker IV
    Cameras: Olympus E-PL1, Canon T3i, Canon T5(full spectrum modified)
    Accessories: Baader 2" MPCC, IDAS LPS-D1 Filter, William Optics P-F6A-GT81 reducer/flattener, Orion MM AutoGuider

 

 
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