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  1. #1
    martellsv's Avatar
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    Problem with focus

    Hello, i have a problem with my SL66, when occasionally don┤t use the tripod in Portraits 6x6 and 6x4.5 format, 80mm Lens and 150mm Lens usually.
    I focus the eye, but in the enlarger/print there is another focus... (a read B. Thornton)
    I am not sure what is the rule with this camera.

    I can post a photo if neccesary. Thanks

  2. #2

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    Please check if the focusing screen is mounted correctly, if not this is a common symptom.

  3. #3
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    this is indeed the most-likely culprit!
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  4. #4
    brucemuir's Avatar
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    Are you using focus/recompose?
    Focus on eye with a central split rangefinder/microprism screen the recomposing the shot after you have achieved focus?

    If you use wide apertures this technique can cause slight back focus.

  5. #5
    markbarendt's Avatar
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    If you can get good focus with the camera on a tripod, it isn't your focus screen.

    That the problem is occasional and hand held suggests that you or the subject simply moved a bit. This is normal, not a gear issue.
    Mark Barendt, Ignacio, CO

    "We do not see things the way they are. We see things the way we are." Ana´s Nin

  6. #6
    martellsv's Avatar
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    I use a Maxwell Screen

    I use a Maxwell Screen, Hi-Lux Brilliant Matte... is has no circle no microprism... no reference to focus...

    Please, could you see My gallery (a have only one photo jajajaja) this photo is the example and the problem

    Please check if the focusing screen is mounted correctly, if not this is a common symptom.
    Could be, but i don┤t know how check it, (apparently correct except i cannot distinguish the fresnel side)

    If you use wide apertures this technique can cause slight back focus
    f/4. 1/60 I read from rollei SL66 users a recomendation to focus tip of the nose...

    Thanks a lot

  7. #7
    markbarendt's Avatar
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    Do you get proper focus on the tripod?
    Mark Barendt, Ignacio, CO

    "We do not see things the way they are. We see things the way we are." Ana´s Nin

  8. #8
    markbarendt's Avatar
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    Your gallery hasn't got any photos I can see.

    Quote Originally Posted by martellsv View Post
    f/4. 1/60 I read from rollei SL66 users a recomendation to focus tip of the nose...
    Why do they suggest this?

    I find it tough to believe that all SL66's focus improperly. To me that sounds like an urban legend or rule of thumb rather than sound advice.
    Mark Barendt, Ignacio, CO

    "We do not see things the way they are. We see things the way we are." Ana´s Nin

  9. #9
    markbarendt's Avatar
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    Ok think I finally found your photo http://www.apug.org/forums/members/m...-homeless.html

    The eyes seem pretty sharp.
    Mark Barendt, Ignacio, CO

    "We do not see things the way they are. We see things the way we are." Ana´s Nin

  10. #10

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    Quote Originally Posted by martellsv View Post
    I focus the eye, but in the enlarger/print there is another focus... (a read B. Thornton)
    What you are refering to is called the chemical focus and it was a problem when enlarging papers were only sensitive to the shorter wavelengths of the spectrum (violet and blue light). It is not a problem with film which is panchromatic in its response.
    Last edited by Gerald C Koch; 09-23-2012 at 12:39 PM. Click to view previous post history.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

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