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HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes

Item# HOTE002
 
5.0

(47 Ratings)

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List Price: $120.00 to $145.00
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We searched the world for the best collimator - this is it.

  • Features SCA Self-Centering Adapter
  • This model works in both 2 inch or 1.25 inch focusers
  • Available in standard laser or crosshair laser
  • Read the reviews!  Let our customers tell you how amazing this product really is!

Description

HOTECH 2 Inch or 1.25 Inch SCA Laser Collimator

 

2" SCA Laser Collimator for both Newtonian telescopes.  Unit comes with one 1.25" SCA Laser Collimator with built-in Self-Centering Adapter pre-installed in a 2" to 1.25" SCA adapter, and one CR123 battery.

 

Ideal precision instrument to collimate your Newtonian telescope.  Unit comes with one patented 1.25" SCA Laser Collimator with built in Selft Centering Adapter pre-installed in a 2" to 1.25" SCA adapter, and one CR123 batter, and users manuals for Newtonian and Star collimation.

 

The HoTech laser collimator separates itself from all the other laser collimators with its innovative self-centering adapter technology (SCA).  The mechanism allows precise and repeatable installation in all brands of 1.25" and 2" telescope focusers.  All laser collimators in the current market have one fundamental problem - the slop in the adapting mechanism between the laser collimator and the telescope focuser.  This problem is clearly recognized and often discussed among astronomers but so far there is no definite solution in the market yet.

 

No matter how tight the tolerances are machined on the laser collimator or the focuser, a small gap is required to allow installation of the laser collimator.  Once the laser collimator is inserted, the required gap becomes a problem.  The laser collimator is fixed either with one or more thumbscrews or an unified compression ring.  Both methods introduce a very critical issue, namely an off-axis installment that instantly destroys the precision of your collimation instrument along the entire optical axis.

 

The patented HoTech SCA Laser Collimator separates itself from all the other laser collimators with its innovative self-centering adapter technology (SCA).  The mechanism allows precise and repeatable installation in all brands of 1.25" and 2" telescope focusers.  All laser collimators in the current market have one fundamental problem - the slop in the adapting mechanism between the laser collimator and the telescope focuser.  Using the conventional thumbscrew or the unified compressing ring to adapt the laser collimator will definitely shift the optical center to one side.

 

The Self-Centering Adapter cleverly eliminates the slop by linearly compressing the built-in rubber rings.  By doing this, the diameter of the rings expands to compensate the gap.  Because all rings evenly expand radially in diameter from the compression, this automatically centers the laser collimator in the focuser draw tube.  The SCA adapter accommodates various brands of adapting focusers which have slightly different manufacturing inside diameters so our laser collimator will be precisely centered for each installment.

 

 Precision Machined Compact Lightweight Design:

 

The collimator is built from aero-space grade lightweight aluminum and CNC machined with the tightest tolerances.  And it is sand blasted and anodized to protect it from harsh environment.  The lightweight design keeps your telescope balanced without creating additional structural sagging and imbalance during collimation.

 

Includes 45º Faceplate Viewer with Laser Engraved Targeting Grid:

 

The faceplate viewer helps to display the returning laser dot with a clear visual reference during collimation from the rear of the telescope.  It eliminates traveling to the front of your scope repeatedly.  We include it as a standard feature and we laser engrave the targeting grid to ensure long lasting quality display.

 

Finest Projecting Laser Dot:

 

Keeping the laser dot to the finest point is the key to precision collimation.  We limit our laser beam to the finest size to operate in the correct operating distance for optimal visual effect.  There is no guess work involved like other laser collimators which is difficult to center a large projecting laser dot to the center of the faceplate.

 

High Accuracy Laser Alignment:

 

We position the laser precisely in the exact optical path and align the laser beam alone the optical axis.  With the combination of the SCA and the laser alignment technologies, you can quickly collimate your telescope in confidence to achieve perfect collimation every time.

 

Long Lasting Battery Life:

 

By using the CR123, 3V battery as our laser power source, our laser collimator has over 65 hours of continuous use battery life time.  The included CR123, 3V lithium battery operates well under a typical cold night and it has a 10 years shelf life.  This is a great advantage that you don't have to worry about changing the tiny hard to find cell batteries frequently in the dark like other collimators

 

Proprietary Crosshair Laser Collimator Available

 

With our proprietary laser crosshair, user can zero-in the laser with ease during the final collimation on the secondary and the primary mirror.  The crosshair model still exibits a precision laser center dot, but with a touch of four extended laser lines from the center dot. The extension lines (crosshair) of the laser dot is the most intuitive way to guide the laser pointing for an accurate adjustment. During the secondary mirror collimation, a single dot laser projecting on the approximate center of the pre-loaded donut is difficult to identify if the laser dot is exactly on the center.  The crosshair laser can easily help user to adjust the secondary mirror to point the laser on the exact center with the help of the crosshair line. During the final primary mirror collimation, the returning laser dot often hides into the laser exiting hole preventing user to identify if the returning laser is at exact center of the hole.  Again, the crosshair will visually guide the user to center the laser dot with ease even when the center laser dot disappears into the exiting hole.  It is a very effective and essential feature to the SCA Laser Collimator in obtaining at even higher degree of accuracy with ease.


CHOKING HAZARD - small parts may pose a risk to children under 6 yrs.

Shipping Restrictions:
Ships to most international destinations, APOs, and FPOs.

Dimensions & Specifications

Brand

HOTECH

Telescope Accessories Series

Laser Collimator

Options

Model Type: Standard Laser, Crosshair Laser

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The Perfect Accessories

Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes
 
4.9

(based on 47 reviews)

Ratings Distribution

  • 5 Stars

     

    (41)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (45)
  • Strong construction (35)
  • Widely compatible adapter (17)
  • Good padding (11)
  • Great optics (6)

Cons

    Best Uses

    • Astronomy (44)
    • Astrophotography (8)
      • Reviewer Profile:
      • Casual/ recreational (27), Avid adventurer (15)
      • Was this a gift?:
      • No (26)

    Reviewed by 47 customers

    Sort by

    Displaying reviews 1-5

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    5.0

    Great Tool!

    By Craig

    from OMAHA,NE

    About Me Avid Adventurer

    Verified Buyer

    Pros

    • Easy To Use
    • Strong Construction

    Cons

      Best Uses

      • Astronomy

      Comments about HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes:

      PERFECT Fit in multiple scopes!

      • Was this a gift?:
      • No

      (1 of 1 customers found this review helpful)

       
      5.0

      Excellent tool!

      By John

      from CEDAR CREEK,TX

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Easy To Use
      • Great Optics
      • Strong Construction
      • Widely Compatible Adapter

      Cons

        Best Uses

        • Astronomy
        • Astrophotography

        Comments about HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes:

        I've been using the Orion laser collimator for my XT10g and it works well but this is a much more refined and accurate collimator. It's very easy to use and the laser point is smaller and much more clear of a circle if that makes any sense. With my previous collimator the circle seemed to be part oval and the edges of the dot weren't that clear where as this one is very clear. I'm very happy with this collimator, a must have tool to keep your dob tuned. Highly recommended.

        • Was this a gift?:
        • No
         
        5.0

        Hotech Laser Collimator

        By Larry

        from Saint Charles, MO

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Easy To Use
        • Good Padding
        • Great Optics
        • Strong Construction
        • Widely Compatible Adapter

        Cons

        • None found

        Best Uses

        • Astronomy

        Comments about HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes:

        Great Collimator

        • Was this a gift?:
        • No

        (1 of 1 customers found this review helpful)

         
        5.0

        nice easy collimation no fuss

        By Anne A

        from GATLINBURG,TN

        About Me Avid Adventurer

        Verified Buyer

        Pros

        • Easy To Use
        • Strong Construction
        • Widely Compatible Adapter

        Cons

          Best Uses

          • Astronomy

          Comments about HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes:

          when it comes to collimation it is not an easy task but with the HoTech SCA no problem once collimated mark the location for a SCT or for a newtonian just center the laser on the target and you are done makes it east fast and over with.

          • Was this a gift?:
          • No
           
          5.0

          Great tool for collimating a Dobs!

          By Glenn

          from CASTAIC,CA

          About Me Casual/ Recreational

          Verified Buyer

          Pros

          • Easy To Use
          • Great Tool

          Cons

          • None

          Best Uses

          • Astronomy

          Comments about HOTECH 2 Inch SCA Laser Collimator for Newtonian Telescopes:

          I've used the traditional manual cross hair collimating tool to collimate my 12.5 f/5 Dobs and was always frustrated by the amount of slop there is between the focuser tube and the collimating tool when used.
          There was no way possible to get a true collimating because the tool would be tilted to one side of the focuser tube when you would tighten the screws to secure it in place.

          With the HoTech Laser it's self centering with no slop!

          Well worth the money and is easy to use.

          Glenn

          • Was this a gift?:
          • No

          Displaying reviews 1-5

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          Customer Q & A

          Q1: Do you have a collimator that will work with my Meade LX200 10" SCT?

          A: You can use either the HOTECH 1.25 Inch Laser Collimator for Newtonian and Schmidt-Cassegrain Telescopes (HOTE003) or the HOTECH 2 Inch or 1.25 Inch SCA Laser Collimator for Newtonian and Schmidt-Cassegrain Telescopes (HOTE002) for your telescope.

          Q2: Would this collimator work with a Dobsonian telescope?

          A: This collimator is ideal for use with a Dobsonian scope, and would work quite well.

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