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Thread: Anybody using an ACTUS?

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    Sr. Administrator Jack's Avatar
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    Anybody using an ACTUS?

    Just curious how many are using an ACTUS and then with what lenses? I am considering an ACTUS set up for Hassy CF glass.
    Jack
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    Super Duper
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    Re: Anybody using an ACTUS?

    I'm using the Actus with a Sony A7r and Hassy CF 40, 80, 120 and 4 Rodenstock Grandagons (45, 55, 75, 90) in copal 0 mount.

    samples
    Last edited by scho; 12th December 2014 at 10:18. Reason: add link
    Carl
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    Re: Anybody using an ACTUS?

    Interesting, but I am thinking it is too limited on extreme wides. I will probably go with Canon T/S on Sony A7r and hope for a megapixel boost soon.

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    Sr. Administrator Jack's Avatar
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    Re: Anybody using an ACTUS?

    Carl, how do the 40 and 80 CF lenses hold up at 100% pixel peeping? Resolution? CA??
    Jack
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    Super Duper
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    Re: Anybody using an ACTUS?

    Quote Originally Posted by Jack View Post
    Carl, how do the 40 and 80 CF lenses hold up at 100% pixel peeping? Resolution? CA??
    Jack,

    Resolution is good with both lenses on center. The 40 shows some softening towards the edges. CA is not a major issue, but I do see some with the 40 in the corners with high contrast. There are links to a raw file from each lens below. I think that both were shot at f/11 using the Actus and A7r. I'm using the LF Grandagons more often now. They are sharp edge to edge and a lot lighter than the big Hassy lenses.

    40mm Distagon

    80mm Planar
    Carl
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    Re: Anybody using an ACTUS?

    Quote Originally Posted by Thomas Fallon View Post
    Interesting, but I am thinking it is too limited on extreme wides. I will probably go with Canon T/S on Sony A7r and hope for a megapixel boost soon.
    True, if you are looking for single shot images with a wide perspective then the 17 and/or 24 T/S lenses are a better option. I am currently limited to about 50mm (LF) with the stock rear standard on the Actus, but I have a modified rear standard on on order that will at least let me use my 45 at infinity focus.
    Carl
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