Bahtinov Mask Focusing Aid for Rokinon / Samyang 135mm F/2 Lens

AstrodymiumSKU: BAHT-135

Price:
Sale price$12.99
Stock:
In stock

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

Based on 6 reviews
67%
(4)
17%
(1)
17%
(1)
0%
(0)
0%
(0)
A
Andrew Lawrence
nice product, no followup

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?

G
Gunnar H
Bahtinov Mask Focusing Aid for Rokinon / Samyang 135mm F/2 Lens

Looks great. I am looking foreward to use it...

J
Jacob B.
Makes Focusing Easy and Reliable

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...)

M
MARCELO RIVERA LIGUEZ
Revision

Aun no he probado la efectividad de la mascara

J
Jean Clément St-Gelais
Bathynov

Bien fait, mais pas encore essayé. Système en construction

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