Description:
[Optical Diffraction Pattern] The precision engineered focus acts as artificial trusses creating three diffraction patterns when light passes through. as you adjust focus these patterns move dynamically until they perfectly align indicating optimal focus position for capturing stunning celestial images with your telescope.
[Durable Lightweight Construction] Crafted from premium 1mm thick aluminum alloy this focusing mask combines exceptional durability with minimal weight. the robust yet lightweight design maintains your telescope balance while resisting wear and tear ensuring long lasting performance without compromising your equipment stability.
[Sturdy Centered Design] Featuring three heavy duty metal columns this focusing mask maintains perfect central alignment while securely clamping to your telescope. the balanced construction prevents slippage during use and the innovative design accommodates a wider range of telescope than conventional masks for superior performance.
[Universal Compatibility] This bahtinov mask is designed to fit all types of telescopes including reflectors refractors dobsonians mak cas and with an outer diameter of 63 to 89mm. the innovative three Screw/Fastener installation system ensures quick secure attachment without damaging your telescope while maintaining perfect alignment for precise focusing every time.
[Precision Focusing Technology] Eliminate all guesswork from your telescope focusing process with this advanced bahtinov mask. the scientifically designed diffraction pattern creates three distinct light rays that converge at perfect focus allowing you to achieve images regardless of atmospheric conditions or visual limitations for unparalleled astronomical observations.

Specification
Item Type: Telescope Focusing Mask
Material: Brass, Aluminum Alloy, Rubber
Weight: Approx. 47g/1.7oz

Package List
1 x Telescope Focusing Mask