AstroCaps are made to fit both your telescope andAstroZap''''s'' Aluminum Dew Shields. It''''s'' not just another dust cover - it''''s'' a multi-functional integrated wheel system which allows for quick ''''s''hutter-like'' operation.
Triangles are the answer:
Each AstroCap is shipped with one triangle wheel for quick focus. Triangles create diffraction spikes, which makes it easier to focus. (No more trying to focus on three blobsusing a round hole focusing cap). Simply turn the thumbscrew to open, and turn to close. No plastic plugs required.
AstroCaps are made from aluminum and powder-coatedtexture black. Wheels are made from ABS plastic and are designed for quick changeovers.
No tools needed!