Bahtinov Mask for Skywatcher 130 Newtonian 650mm FL

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WILL BE SENT BY 1st CLASS DELIVERY Contact me or telephone Bahtinov focus mask Sky Watcher Explorer 130 The unique design prevents the mask from rolling away If you are in doubt then please measure the outside diameter of you telescope tube and let me know what it is. I am an engraver and sign maker with over 30 years of experience who has a lifelong love of astronomy I am very happy to make you a bespoke mask if you can't find one for your telescope Out Of Focus Nearly There Perfect Focus It will take less than 1 minute to achieve perfect focus with your new mask and will mean you spend more time imaging photons rather than focusing them Above is a f10 mask suitable for Schmidt Cassegrains above my own setup consisting of Celestron C925 and William Optics ED102 Megrez 3mm thick Matt black Toughened Acrylic so no reflective light. Unlike ones made of ordinary Acrylic or Perspex these ones will resist cracking and breaking during normal use. However they are NOT unbreakable so treat them with the same care as you do with your lenses and camera equipment. Light weight so you wont upset the balance on your scope. Precision laser cut. M6 black plastic bolts to hang the mask over the front of your scope, these are removable for easy storage of your mask after focusing. I mark the extended corner with reflective tape this read more

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