The SI-HOLA-CIRCLE produces a nine-concentric circle pattern that spans 10 degrees and will reach to the edge of f/ 5.7 optics. Recommended for scopes around this focal ratio or slower. The Laser light is spread over a smaller area it is brighter than the square grid pattern, this makes it particularly useful with Cassegrain scopes, where the pattern impact is sometimes scrutinised on the mirror surface. The projected pattern is seen only by light that is scattered from dust, dirt, or optical roughness, so a brighter pattern is better, especially if the mirrors are very clean.

New Version Howie Glatter Collimators are manufactured with a larger course thread size to facilitate changing the attachments in the dark. Please choose the correct version for your collimator from the drop down list.

Attachment Versions
Attachment Versions

Reviews

There are no reviews yet.

Be the first to review “Howie Glatter Holographic Attachment – Concentric Circles”

Your email address will not be published. Required fields are marked *

Howie Glatter Holographic Attachment – Concentric Circles

SKU: N/A

$205.00

✅ Fast Shipping & Tracking
✅ Stocked in Melbourne, Australia
✅ Expert Advice
✅ Lifetime Technical Support

    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    Howie Glatter Holographic Attachment – Concentric Circles

    SKU: N/A

    $205.00

    The SI-HOLA-CIRCLE produces a nine-concentric circle pattern that spans 10 degrees and will reach to the edge of f/ 5.7 optics. Recommended for scopes around this focal ratio or slower. The Laser light is spread over a smaller area it is brighter than the square grid pattern, this makes it particularly useful with Cassegrain scopes, where the pattern impact is sometimes scrutinised on the mirror surface. The projected pattern is seen only by light that is scattered from dust, dirt, or optical roughness, so a brighter pattern is better, especially if the mirrors are very clean.

    New Version Howie Glatter Collimators are manufactured with a larger course thread size to facilitate changing the attachments in the dark. Please choose the correct version for your collimator from the drop down list.

    Attachment Versions
    Attachment Versions

    Reviews

    There are no reviews yet.

    Be the first to review “Howie Glatter Holographic Attachment – Concentric Circles”

    Your email address will not be published. Required fields are marked *

      Need Expert Advice?

      Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

      Enquire now or call us (03) 9042 2293