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Thread: New 75mm Hypergon Lens

  1. #171
    ic-racer's Avatar
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    Re: New 75mm Hypergon Lens

    It also appears that there should be a piece of spring steel here to help the spinner flip out:

    Click image for larger version. 

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  2. #172

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    Re: New 75mm Hypergon Lens

    That’s quite a substantial improvement…

    and I can’t help but ask, so the designers of this clone did not shoot with their own creation to make sure it would work properly?

  3. #173
    Tin Can's Avatar
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    Re: New 75mm Hypergon Lens

    Who is making and selling this New 75mm Hypergon Lens?

    I am lost in the 15,000 posts
    Tin Can

  4. #174

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    Re: New 75mm Hypergon Lens

    Quote Originally Posted by Kiwi7475 View Post
    That’s quite a substantial improvement…

    and I can’t help but ask, so the designers of this clone did not shoot with their own creation to make sure it would work properly?
    Actually we've released some test shot on August.
    http://xhslink.com/5AnBFx
    http://xhslink.com/2YSBFx

  5. #175

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    Re: New 75mm Hypergon Lens

    Quote Originally Posted by ic-racer View Post
    The negative on the left is with the shiny spinner.

    The negative on the right is with painted spinner.

    Close but still not there yet. There is still an area of fog in the middle. This could probably be corrected by making the inside of the spinner smooth like the vintage Hypergon pictured below.

    Attachment 244845
    Attachment 244846
    On our shots, the raw brass did not affect this much. Maybe it was the problem of the chemical we used on our final product to make these brass parts even more shinier. I will do some further test next weekend.

  6. #176
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    Re: New 75mm Hypergon Lens

    Quote Originally Posted by rayfor View Post
    Actually we've released some test shot on August.
    http://xhslink.com/5AnBFx
    http://xhslink.com/2YSBFx
    With the camera pointed up, was the spinner being used for those; it looks really dark on the edges, like the spinner was not used in the 6 to 1 ratio.
    Click image for larger version. 

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  7. #177

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    Re: New 75mm Hypergon Lens

    Quote Originally Posted by ic-racer View Post
    With the camera pointed up, was the spinner being used for those; it looks really dark on the edges, like the spinner was not used in the 6 to 1 ratio.
    Click image for larger version. 

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    the ratio is even greater than 6 to 1 in this case. It's hard to control reciprocity law failure on this photo paper. I've also tested on kodak ra4 paper last month which could provide a.better result in even lower price.

  8. #178
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    Re: New 75mm Hypergon Lens

    Quote Originally Posted by rayfor View Post
    the ratio is even greater than 6 to 1 in this case. It's hard to control reciprocity law failure on this photo paper. I've also tested on kodak ra4 paper last month which could provide a.better result in even lower price.
    Ok, that is pretty nice for a paper negative.

  9. #179
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    Re: New 75mm Hypergon Lens

    I sanded the interior of the fan to make it smooth.

    Click image for larger version. 

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  10. #180
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    Re: New 75mm Hypergon Lens

    Then I re-painted it. With Krylon Flat Black to see if it is any better than the Rustoleum. I don't have any of the 'super black' paint at this time.

    Click image for larger version. 

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