Description
Focus on more important matters with the aid of a bahtinov mask.
A bahtinov mask produces a distinctive spiked pattern on a bright star - you'll know when the focus is perfect when the third spike moves into the center. No guessing anymore!
Designed to work specifically with the Rokinon/Samyang 135mm F2 lens, using a high bahtinov factor of 100 (higher factor produces a sharper pattern).
What's included:
- 1x Bahtinov mask (93.5mm inner diameter)
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Customer Reviews
Good product, very thin slides for star focusing, perfect for precision and sharp photos. Very good service.
An important piece for my astro setup to get sharp images! Also the whole ring system is a great help me! Thank's!
The package I ordered arrived in a reasonable time considering it came from Canada. The value of the product is pretty reasonable. After receiving the package, I decided that I wanted to return it. I emailed the seller about 3 weeks ago inquiring if I could and have not received a response. So, I guess no returns?
Looks great. I am looking foreward to use it...
Before, eyeballing the live preview of my camera got me down to a FWHM of ~3.4 pixels, now with the same setup and the assistance of the Bahtinov mask I am reaching <2.2 pixels! That's a 59% improvement in sharpness! The print quality is superb, no need for me to worry about trial & error with print settings to get it right. Tight fit, which is good. There was a tiny stray strand of filament, but it was easy to brush off and it feels like the thin lines won't snap (unless you intentionally force them to...)
