Astrodymium Bahtinov Mask Focusing Aid for Rokinon / Samyang 135mm F/2 Lens
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- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
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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).
3D printed out of durable PETG thermoplastic that can handle temperatures of up to 80C (176F), and down to -25C (-13F).
Other Information
- Country of Manufacture: Canada
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).
3D printed out of durable PETG thermoplastic that can handle temperatures of up to 80C (176F), and down to -25C (-13F).
- 1x Bahtinov mask (93.5mm inner diameter)
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).
3D printed out of durable PETG thermoplastic that can handle temperatures of up to 80C (176F), and down to -25C (-13F).
Other Information
- Country of Manufacture: Canada
- 1x Bahtinov mask (93.5mm inner diameter)