Achieve perfect focus on the stars with our SharpStar2 precision focusing filter.

Please see shipping delay notes below.

  • available exclusively on
  • three square filter sizes available (85mm, 100mm, & 150mm)
  • requires a square filter holder and the appropriately-sized system adapter ring to fit your lens (not included)
  • includes Quick Start Guide with simple instructions for getting started
  • made in U.S.A.
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View our product details page for more information and instructions for use.

In-stock items ship out within 3 business days. Backordered items ship out in 2-3 weeks.

Please note shipping delays below. We truly appreciate your business and patience during this time.

Domestic Shipping Delays: Most pandemic-related domestic shipping delays have resolved at this time. U.S. shipments usually arrive 2-5 days after we send your shipment tracking email (up to 3 days after your order is placed for in-stock items). Please note shipping delays are always common during the holiday season (November/December).

International Shipping Delays: Most international shipping delays have resolved at this time.  Please check the USPS International Service Disruptions page for country-specific information.

*Ships from Florida or California. Tracking may not be available for certain international destinations. You are responsible for any customs fees imposed by your country (e.g. VAT is not included).

Additional information

Weight 3 oz

85mm square filter, 100mm square filter, 150mm square filter