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  1. #1

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    Hasselblad cross hair focusing screen

    Is there a trick to focusing with the screen with cross hairs that don't meet in the middle, no split prism or anything? The screen is bright, I think an early acute-matte, but jeez, with no split prism, it's hard to get critical focus even with the magnifier. Just wondering if any of you have a trick for this.
    Jeff Glass

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  2. #2

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    The trick I used was to buy a split prism screen. Apparently some people like the standard screen, since it's the most common, but it's never been my first choice. The micro-prism screens work well too, I have both.

  3. #3

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    I find that it's easiest to find the critical focus dead center in the glass, but even then, I always have to use the pop up magnifier.

  4. #4

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    You don't happen to have a clear screen, do you?

  5. #5

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    Yep, my first idea is to get a split prism screen, but I was hoping this was easier than it looks.

    QG: what do you mean?
    Jeff Glass

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  6. #6

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    There is a clear glass screen. Cross lines, and a Fresnel lens underneath, but no matte, diffusing structure.
    Consequently very bright, but - unless you know how - impossible to focus.

    I don't think your screen is one of those, but nevertheless, difficult to focus, and bright... Might have been.

  7. #7

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    That sounds like an aerial image screen, that QG is describing. Best used for macro and the like. Agreed, bright but with no DOF info and tricky to focus for sure!

    -Ed

  8. #8

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    Quote Originally Posted by EdSawyer View Post
    That sounds like an aerial image screen, that QG is describing. Best used for macro and the like. Agreed, bright but with no DOF info and tricky to focus for sure!

    -Ed
    That sounds pretty neat. What do you do, keep your eye focused on the cross hair while focusing the lens to the aerial image? Is it good for macro because of the bright image?

  9. #9

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    It's excellent for high magnification photography, not because the image would be bright at such magnifications, but because then you don't see a thing with regular screens.
    It of course also works in long range photography, but then a regular screen is easier to use.

    You don't try to see whether both the reference lines and the bit in the subject you are focussing on are sharp (they always look sharp when you look at them), but while focussing you move your head slightly for left to right. The reference lines move relative to the bit you are focussing on, untill they and that bit are in the same plane. A perspective/parallax thing. So if they move together, but not relative to each other, you have that bit in focus.
    Very accurate, and (with a little practice) very easy to do.

  10. #10

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    Hate to bring this back on track, but can anyone tell me about any experience with the available bright screens (Acute-matte, etc) that have some sort of split image focusing? Is there a source for these other than the auction site and KEH?

    Thanks
    Jeff Glass

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