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Thread: subject between 10 to 20 cm on 5x7 and 8x10 in bw

  1. #1

    Join Date
    May 2006
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    271

    subject between 10 to 20 cm on 5x7 and 8x10 in bw

    here is my question, i have different lens, and i need to make shure i will use the best one for that purpose !

    Film probably Delta 100

    Format Probably 5X7 but possibly 8x10
    (because i have a durst 138S and a nice rodagon 210 current version and no 8x10 enlarger)

    Final print size 50x60cm as sharp as possible

    subject size : between 10 to 20 cm

    Camera : 8x10 norma with 5x7 reducing bag and normal 8x10 bellow

    Shooting place : in the studio

    Light : 1000W fresnel cremer (2)

    Lens choice (to reverse or not to reverse...)

    110 XL
    150 Apo sironar S
    210 Hexanon GRII
    240 Apo sironar S
    240 Apo Ronar MC
    305 G claron Black Copal 1

    Best choice for 5x7 ? for 8x10 ? Thanks
    I think, i should go with the 240 Apo sironar S and reversing it...

    Thanks

  2. #2
    All metric sizes to 24x30 Ole Tjugen's Avatar
    Join Date
    Mar 2002
    Location
    Norway
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    3,376

    Re: subject between 10 to 20 cm on 5x7 and 8x10 in bw

    With that size subject, you're talking about a ratio of 1:2 and 2:1, I believe? That's a tricky range, also with regards to bellows extension. A 240mm lens gives nice working distance, but only if you have the bellows for it!

    If it's larger than 1:1, it makes sense to reverse the lens unless you have a true macro lens. At smaller ratios it just makes matters worse.

  3. #3

    Join Date
    May 2006
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    271

    Re: subject between 10 to 20 cm on 5x7 and 8x10 in bw

    i have enought bellows for 1:1 with my 305...

    i think that my apo ronar 240 will cover at 1:1, maybe i should make a test with several lens...
    i have also enlarger lens :
    apo componon S 105 (current version)
    El Nikkor 135 (current version)
    Rodagon 150 (current version)
    Rodagon 210 (1 old, 1 current version)

  4. #4

    Join Date
    Sep 2003
    Location
    Harbor City, California
    Posts
    1,748

    Re: subject between 10 to 20 cm on 5x7 and 8x10 in bw

    I'd be inclined to try the Hexanon first. Your requirements are closer to what the designer presumably had in mind with this lens rather than any of your others.

    Be aware that when you are close to 1:1 you are going to have to focus by moving either the whole camera or the subject. Shifting the lens position just changes the ratio.

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