Farpoint Bahtinov Mask, FP415H - fits Celestron 9.25" SCT with

Farpoint Bahtinov Mask, FP415H - fits Celestron 9.25" SCT with Fastar or Hyperstar. | Fast Easy Focus for Your astrophotos a lifesaving Tool for Focusing Your Astro Camera or DSLR.
- Farpoint Focus Mask for the Celestron 9.25 SCT (Hyperstar/Fastar) fits Fastar/Hyperstar READY C9.25 SCT's. Simple to fit and easy to use. End your focusing struggles.
- Bahtinov focus masks make focusing for astrophotography fast and easy. Ends the pain of struggling to find the best focus for your astrophotography images.
- Works with all electronic imaging devices. Includes DSLR cameras, modified DSLR cameras, CCD astro-imagers, CMOS astro-images, video cameras, low light systems etc.
- Use by simply placing the Bahtinov focus mask over the end of your telescope, record a quick image of a bright star, adjust focus and repeat two or three times until perfect focus is achieved.
- Made in the USA by Farpoint Astro. Made in America, by Americans, using American made materials and suppliers, supporting our economy. Buy American please.
Attach your camera to the telescope, center a fairly bright star in your telescope and achieve a rough focus. Then place the mask over the front aperture of your telescope. Take a short exposure. The image of the star will show diffraction spikes. The "center" set will most likely be shifted to one side or the other. This is showing the defocus. Adjust the focus of your telescope and re-expose the star, once again showing the diffraction spike pattern. Iterate the process until you get the central diffraction spike centered against the star and the other spikes. When you achieve a symmetrical pattern, you have achieved the best possible focus. Remove the mask, center your target object and take your images!
Country USA
Brand Farpoint
Manufacturer Farpoint Astronomical Research
Binding Electronics
ItemPartNumber FP415H
Model FP415H
UPCs 022099907176
EANs 0022099907176
ReleaseDate 0000-00-00

Country	USA
Brand	Farpoint
Manufacturer	Farpoint Astronomical Research
Binding	Electronics
ItemPartNumber	FP415H
Model	FP415H
UPCs	022099907176
EANs	0022099907176
ReleaseDate	0000-00-00

Farpoint Bahtinov Mask, FP415H - fits Celestron 9.25" SCT with Fastar or Hyperstar. | Fast Easy Focus for Your astrophotos a lifesaving Tool for Focusing Your Astro Camera or DSLR.

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