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jimdesu

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Posts posted by jimdesu

  1. <p>I have an aged Imacon Precision II that I got used back in '99 when I had some folding cash, and it's suddenly started scanning awefully. Even on 300dpi preview-mode, the amount of noise is visible from across the room, and the noise comes with a massive orange cast in the no-negative-here space that results in a seriously em-blue-ified image that's no fun to color correct.<br>

    I've tried CCD calibration, etc., to no avail; am I about to be forced into the low-rez digital world? I'd hate to lose 4x5, 6x9, 645 and 35mm to be stuck with my prosumer APS-frame Pentax (nice as it is for snapshots).<br>

    Any help or recommendations would be greatly appreciated, as I can't afford to bop out and purchase another one. :-)</p>

  2. Thanks all,

     

    The camera's back isn't a graflok, so I can't lock it down as I would have with my old super-speed graphic (which went the way of the dodo last year). I can put my hands on some lisco holders and try them to see if they come out ok, and I'll print out the manuals too.

     

    thanks!

     

    James

  3. Hi there,

     

    I bought a Cambo Legend for cheap and took it out to do some shooting with, and

    the results were chock-full of light leaks. I checked the bellows out with a

    flashlight, and don't see any pinholes or cracks anywhere. My only theory is

    that perhaps the back on a Legend is incompatible with grafmatics? Or do

    grafmatics ever go bad?? The negatives were distributed between two different

    grafmatics, so it isn't just a case of me having spoiled one of the sets of

    negatives via carelessness (which was my first thought).

     

    Here are urls for five pix that I've tweaked the gamma on to best show the light

    problem.

     

    http://jimdesu.us/tmp/leak1.tif

     

    http://jimdesu.us/tmp/leak2.tif

     

    http://jimdesu.us/tmp/leak3.tif

     

    http://jimdesu.us/tmp/leak4.tif

     

    http://jimdesu.us/tmp/leak5.tif

     

    thanks!

     

    Jim Mitchell

  4. Mr. Littman, I thought your camera was a pretty neat idea, and due to your lens/cam offerings, had been saving money up towards a purchase. In the meanwhile you've become a circus of this forum, and while you are correct that you're being teased, it's not as if in your hypersensitivity you haven't been asking for it. I can't be bothered to read any more of your rambling as it makes my head swim, but I can say for certain that I won't be purchasing any cameras from you -- if this's how you deal with criticism, I can't imagine how you'd deal with a frustrating repair issue.

     

    For your own sake sir, please switch to decaff. You'll be better for it.

  5. Read "Ins and Outs of Focus" (linked above, and stop worrying about trying to compute image-plane depth-of-field. You'll be really glad you did. Or, if you want a really "thumby" rule of thumb:

     

    As you move from the plane of focus towards your lens, items smaller than your lens's aperture will be rendered out of focus. Items will defocus by the same amount as you move away from the plane of focus away from you, and, after you've covered the same distance away from the object as you are from it, you'll keep getting even more out of focus at the same rate.

     

    But of course Merklinger says all this much better than can I.

  6. Hi y'all,

     

    I'm considering picking up one or two ZI lenses, and am wondering if

    anyone else also likes to use lenses very close-up to the camera.

    Almost everyone optimizes for good performance at infinity, but the

    close-end generally isn't that great. Can anyone comment

    knowledgeably on the close-up performance of the new ZI M-lenses?

     

    thanks in advance

     

    James

  7. I'm a paying subscriber, and don't mind the ads to the side of the material (I'm rather glad to see them there, actually, as I like this site), but the inter-page ads are vexing, and if they continue, I'll likewise abandon photo.net & not renew my subscription. This'll be a loss for me, as I make great use of the site, but interstitial adverts are a great affront I won't tolerate.
  8. I use both MF and 35mm. I use the latter because I have too much depth of field with my MF gear for some of the selective-focus shooting I enjoy. If Mamiya would come out with some really fast lenses for their rangefinders (my other two MF cameras are fixed-lens) -- my 150mm is f/4.5!, then maybe that would be ok, but I haven't found anything affordable that'll replace 50/1.2 and 85/1.5 lenses from 35mm.
  9. Hi there,

     

    My Pentax LX is getting long in the tooth, and I'm thinking seriously

    of replacing it (sometimes it makes exposures way too long(with film

    in); the electronics getting dicey I guess), but I can't find anything

    that can do the one thing that I love about my LX: it has a racheted

    rewind that will let me expose my whole roll of film, then rewind back

    to frame 1 (exactly) and do it again. This's *very* important

    functionality, and I haven't been able to find it anywhere: the

    closest I've seen is some bodies that'll automagically wind a roll

    back to the next unexposed frame, but this won't suffice for my needs.

     

    Any suggestions would be highly appreciated.

     

    Thanks in advance!

     

    James

  10. It depends on what kind of focussing screen you have in your SLR. Rangefinders show you the position of exact focus, rather than the general focus. You get the same focussing advantage you'd get as you would with a split-screen in your SLR viewfinder, BUT, generally, the viewfinder is much brigter since you're not looking through a pentaprism, mirror & complex lens, but just a finder instead.

     

    The geometric baselength of the rangefinder also matters: you can focus anything exactly with a split-prism SLR finder, but if your rangefinder's baselength is too shallow, the trigonometry doesn't give you enough precision to focus long(er) lenses. I can focus my 150mm on my Mamiya 7 easily, but my 135mm on my leica M5 is a harder proposition.

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