17 Replies to “NEW: SharpStar Precision Focusing Tool by Lonely Speck”

  1. I was looking at adaptors for this Cokin filter holder.
    I am using Leica lenses and for my 50mm the diam. is 39mm.
    Is there an adaptor that will fit this lens to the Cokin unit?
    Thanks,
    JB

  2. A Bahtinov Mask for drop in filter holders… very nice idea! It’s really annoying cutting one yourself and glueing it into a step-up-filter adapter.

    So you’re working on a wide angle version, that’s good to know… are you planning on a 150mm version as well? Could be useful for the Rokinon 2.8/14mm, the Nikon 2.8/14-24mm or the 2.8/15-30mm Tamron

  3. These look great! I have a couple lenses I know this will work on but I’m curious if this would work on a Rokinon 16mm f2.0. The camera has an APS-C sensor so the lens focal length is the equivalent of 24mm. On the chart you display, 24mm at f2.0 is a “yes.”

    Thoughts?

    1. At the moment, I can’t recommend it for use on the 16mm/2. My compatibility chart does not refer to equivalents and a 16mm/2 is not recommended, unfortunately. That said, I’m working on a design I’m calling the SharpStarWide, specifically for wide angle lenses like the 16mm/2. I hope to have the design ready for shipping in January.

  4. From the picture, the quality looks great.
    Genius design to attach to 100mm square filter. I guess this mask should also work well for city nightscape scenario where strong point light source and dark background in the same frame.
    I am getting one.

  5. This look really interesting. Will this work with the Fuji system and more specifically the Zeiss 12mm / Rokinon 12mm / Fuji 14mm lenses.

    1. At the moment, I can’t recommend it for use on really short lenses. That said, I’m working on a design I’m calling the SharpStarWide, specifically for wide angle lenses like the 12mm/2 and 14/2.8. I hope to have the design ready for shipping in January.

  6. I have been using these style masks for years on telescopes and camera lenses for night shots. They work well. Yours looks like a quality product and a needed item for anyone shooting stars.

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