Celestron Deluxe Off-Axis Guider - 93648

5.0 Stars

1 Rating

Read 1 Review Write a Review
Celestron Deluxe Off-Axis Guider - 93648 has a rating of 5.0 stars based on 1 reviews.

Item #CELE-93648

  • Your Price:
  • $299.95
  • + FREE Shipping

Leave us your email, and we’ll let you know when this item is back in stock.

  • For long exposure astrophotography, there's no more accurate way to guide your telescope than with this inline accessory
  • Replaces a traditional guide scope and accepts any 1.25" autoguider
  • Extremely large 12.5mm multi-coated prism features aluminized backing for the brightest possible image in your autoguider
  • Smooth, accurate helical focuser
  • 48mm clear aperture supports full frame DSLR sensors and large astrophotography cameras
  • Includes a variety of spacers to ensure proper positioning of your camera
Questions? Let our experts help!
  • Description

    Serious astrophotographers know that an off-axis guider is the best way to ensure perfect tracking accuracy over long exposure times. Unlike a separate guide scope, which can never be 100% perfectly aligned with the telescope, the off-axis guider uses the main telescope optics. This means you’ll correct for tracking errors, opto-mechanical errors, and flexure. It’s a difference you can see in your final images, with round, pinpoint stars across the field of view.

    But in the past, off-axis guiders were complicated and difficult to use. Celestron has solved those problems with the most user-friendly off-axis guider we’ve seen to date.

    What makes this guider different? The massive 12.5mm multi-coated prism. Other off-axis guiders with inferior prisms provided so little light to the autoguider that locating a guide star was challenging and time consuming. This huge prism perfectly intercepts a small portion of the light coming through the telescope optics and deflects it up to your autoguider. Its huge size, fully multicoated optics, and aluminized backing bring in enough light that it’s easy to locate an adequate guide star.

    Even though the prism is large, it intercepts light outside of your camera’s imaging circle, so there’s no loss in image quality. You can adjust the exact positioning of the prism to bring it closer to the imaging circle when using smaller sensors like that of a DSLR.

    The guider also features a fixed-orientation helical focuser that works perfectly with any autoguider. A smooth adjustment knob makes it easy to bring your guide star into focus without changing or twisting the autoguider camera’s orientation.

    The Celestron Off-Axis Guider goes a step beyond most competitors, providing a wide variety of spacers and adapters to ensure you space your camera exactly on your telescope’s focal plane, even accounting for the width of the guider. Other manufacturers don’t provide these spacers, adding cost and complexity to your final setup. Each guider includes an SCT/EdgeHD adapter, female M48, female M42 (t-thread), male M48, male M42 (t-thread), and 3 T-thread spacers.

    This elegant solution will allow you to track exposures confidently for minutes at a time while simplifying your overall setup and reducing setup time.

    Supplier SKU


  • Dimensions & Specifications

    Helical Focuser Travel


    Telescope Connection

    M42 T-thread, M48, and SCT/EdgeHD

    Autoguider Connection

    M42 T-thread, and standard 1.25" adapter

    Camera Connection

    M42 T-thread, and M48 Weight

    Clear Aperture


  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    Default manufacturer warranty.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

  • 5.0 Stars

    1 Review

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars

    Most Helpful Reviews

    Most Critical Reviews

    All Reviews

    Displaying Reviews 1-10 of