Howie Glatter Holographic Attachment for Laser Collimator - Square Grid Pattern (New Version)
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
Please Note:
- This is the new "NV" version and not the old version.
- New Version (this item): Bigger & coarser 3/8-32 thread diameter. Identified by a visible ring. Old Version (no longer available from Agena): Super fine 5/16-56 thread diameter. No visible ring
- If you plan to use one of their holographic attachments such as this item, you need to make sure that you match the "old" Howie Glatter collimator with the "old" holographic attachment, and the "NV" collimator with the "NV" holographic attachment.
Optional holographic attachments for Howie Glatter laser collimators screw into the laser aperture and have a white screen front surface. They contain an optical element that diffracts most of the laser light into a diverging symmetrical pattern around the central beam. The projected pattern is useful for centering optical elements by making it symmetrical with the edge of the optic.
A 10 x 10 line square grid pattern is supplied as standard because it is the widest pattern. It spreads 21 degrees which allows centering of optics as fast as f/ 2.7. This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.
This item is meant for use ONLY with compatible Howie Glatter laser collimators. It cannot be used with collimators from any other brand.
Other Information
- Country of Manufacture: United States
Please Note:
- This is the new "NV" version and not the old version.
- New Version (this item): Bigger & coarser 3/8-32 thread diameter. Identified by a visible ring. Old Version (no longer available from Agena): Super fine 5/16-56 thread diameter. No visible ring
- If you plan to use one of their holographic attachments such as this item, you need to make sure that you match the "old" Howie Glatter collimator with the "old" holographic attachment, and the "NV" collimator with the "NV" holographic attachment.
Optional holographic attachments for Howie Glatter laser collimators screw into the laser aperture and have a white screen front surface. They contain an optical element that diffracts most of the laser light into a diverging symmetrical pattern around the central beam. The projected pattern is useful for centering optical elements by making it symmetrical with the edge of the optic.
A 10 x 10 line square grid pattern is supplied as standard because it is the widest pattern. It spreads 21 degrees which allows centering of optics as fast as f/ 2.7. This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.
This item is meant for use ONLY with compatible Howie Glatter laser collimators. It cannot be used with collimators from any other brand.
Please Note:
- This is the new "NV" version and not the old version.
- New Version (this item): Bigger & coarser 3/8-32 thread diameter. Identified by a visible ring. Old Version (no longer available from Agena): Super fine 5/16-56 thread diameter. No visible ring
- If you plan to use one of their holographic attachments such as this item, you need to make sure that you match the "old" Howie Glatter collimator with the "old" holographic attachment, and the "NV" collimator with the "NV" holographic attachment.
Optional holographic attachments for Howie Glatter laser collimators screw into the laser aperture and have a white screen front surface. They contain an optical element that diffracts most of the laser light into a diverging symmetrical pattern around the central beam. The projected pattern is useful for centering optical elements by making it symmetrical with the edge of the optic.
A 10 x 10 line square grid pattern is supplied as standard because it is the widest pattern. It spreads 21 degrees which allows centering of optics as fast as f/ 2.7. This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.
This item is meant for use ONLY with compatible Howie Glatter laser collimators. It cannot be used with collimators from any other brand.
Other Information
- Country of Manufacture: United States