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  1. #11
    BradS's Avatar
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    if my back of the envelope arithmetic is correct, the nominal diagonal of 4x10 and 5x12 are as follows:

    4x10: 10.8 inches ( 274 mm )
    5x12: 13.0 inches ( 330 mm )

    So, none of the 210mm plasmats will cover the 5x12 format well. Most of them have image circles around 300mm - well shy of the 330mm nominal diagonal of 5x12.

  2. #12

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    I don't need a lot of movements since this is primarily for landscape photography. I'll need some rise for shooting the occasional historic building or to prevent convergence of tree tops. Otherwise rear swing/tilt will do fine. I just don't want to image to fall apart on the corners. I'm looking for lenses that are more capable of rendering "technically correct" images rather than the "artistic approach". I hope that makes sense.

  3. #13

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    Hi Brad...

    Yes, that's about right on diagonal measurements. I'm counting on each lens having more decent quality covering power than their specs indicate. I'm fairly certain the Apo Symmar and Apo Sironar-N can cover 5x12 nicely but the G-Claron is a different animal. I've been reading that this series has far more coverage at reasonable quality into the corners than the specs show. That said, I'm sure even the little G-Claron will cover 4x10 with no problems.

    I can't afford a 210mm SS XL and I don't want to carry around or handle larger lenses than I really need. Older 200-ish FL lenses, i.e. 210mm SA, are just too big and heavy. I would fiddle around and drop it.

    If the lenses I've listed just can't do the job properly that's another thing... I'll move up. Again though, I really don't need much wiggle room.

  4. #14

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    Quote Originally Posted by BradS View Post
    So, none of the 210mm plasmats will cover the 5x12 format well. Most of them have image circles around 300mm - well shy of the 330mm nominal diagonal of 5x12.
    The 210mm Apo-Sironar (W) is a very nice match to 5x12, with some room for movement - I've used that combination. The 210mm Super-Symmar HM should also work well, though it's bigger and heavier than the Rodenstock W. Both lenses are rated as covering 80 degrees, with image circles of roughly 350mm at f/22.

  5. #15
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    You could of course just shoot 4x10 and relish the ample coverage of most 8x10 lenses
    "Only dead fish follow the stream"

    [APUG Portfolio] [APUG Blog] [Website]

  6. #16
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    Quote Originally Posted by Oren Grad View Post
    The 210mm Apo-Sironar (W) is a very nice match to 5x12, with some room for movement - I've used that combination. The 210mm Super-Symmar HM should also work well, though it's bigger and heavier than the Rodenstock W. Both lenses are rated as covering 80 degrees, with image circles of roughly 350mm at f/22.


    ah, yes. but those are not the garden variety 210mm Plasmats. I'm thinking here of the pedestrian Sironar-N, Sironar-S, APO Symmar, Symmar-S, Nikkor-W, etc...
    Last edited by BradS; 10-01-2009 at 01:20 PM. Click to view previous post history.

  7. #17

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    Quote Originally Posted by keithwms View Post
    shen will make up the 5x8 back
    Keith

    that's interesting to hear that. I bought my Shen Hao 5x12 not long after they first came out, very nice camera. I asked if they could make a 4x10 reducing back as well, they said no. So has the situation changed?

    Are you a Chinese speaker? I always found it difficult to deal with them because of the language barrier. I'd get replies back that made no sense.

    Clayton

  8. #18

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    Mike

    do you intend to enlarge much? If you do I think you'd find the g claron disappointing. I find they're acceptable for contact prints but enlargements show up their short comings.

    Clayton

  9. #19

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    Please keep the comments coming. I'm paying close attention.

  10. #20

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    Clayton... yes I want to have the option of making HUGE prints. In fact, I would like the option of making 4x8 or 4x10 foot prints with as much detail as is possible. That's not to say I'll make prints that large but I don't want to be limited by the lens(es). I'm not going to make contact prints.

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