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  1. #1

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    Faulty film issues? Poor resolution too?

    A while back I posted about problems getting density from some Maco UP100 in10x8. I am able to get OK density in DDX, just about, but only with extremely bright scenes. With the lower contrast scenes I am unable to get beyond a flat neg no matter how long I dev.

    The question is.....I have also noticed that with this (faulty?) film, resolution is also very, very poor. I am new to 10x8, but the resolution is miles worse than I am used to in 5x4. Even with 5x4 HP5 and sloppy technique, the images display FAR greater acutance and resolution. At first I thought...crap, I have either a duff lens or the camera GG is out. I tried shots from another lens and they are just as fluffy, so I suepct it is either the GG or again the film. I then thought as I have to dev the film to death to get contrast perhaps this had an effect. No. I looked at teh undeveloped negs (in pyrocat HD) and they too were as fluffy as hell. Thus far I have dev'd terrible negs (out of curiousity) from 2 lenses, at apertures from F22-F45 from infinity based to using hyperfocal distance for DOF with 300mm and 210 lenses. In all cases the Maco negs lack resolution and acutance. I guess acutance would not be possible as there are no defined edges to anything. Grain is very high for a 10x8 100 speed (about the same print for print as HP5 in 5x4, carefully processed). Under teh magnifier the grain also has a mushy toothless look to it. Theres no crispness whatsoever. This made it tough to focus the negs as they never really looked in focus. Not the enlarger lens (They appear as toothless under a top end loupe on the lightbox).

    I am about to get some FP4 plus, so I guess that will answer the question of GG or the film, but would it be possible for the duff film to exhibit poor resolution? I dearly hope so, otherwise the GG is the problem (unlikely as this is a recent Zone VI and the wood appears to be machined to very tight tolerances, no slack/gaps anywhere at all. The GG is also original, so I assume that it would be made the same as all the others.....ie accurately?


    I am praying it is duff film.....

  2. #2
    rbarker's Avatar
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    I hesitate to ask, but I will anyway. Are you sure you loaded the film correctly? Your description sounds almost like you were shooting through the base and the anti-halation backing.
    [COLOR=SlateGray]"You can't depend on your eyes if your imagination is out of focus." -Mark Twain[/COLOR]

    Ralph Barker
    Rio Rancho, NM

  3. #3

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    No problem asking!

    100% sure. I've been loading 5x4 for years and definitely had the emulsion side facing the lens. I even checked the notches were cut in the right place and they are, so it is not a case of notch cut wrong so I placed it back to front. Hmmm

    I could not have produced worse negs if I'd tried



    Tom

  4. #4
    rbarker's Avatar
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    Phew. I guess my only thought then would be to talk to the dealer you got the film from, or Maco directly if that's possible, to see if they've had reports of a bad batch.
    [COLOR=SlateGray]"You can't depend on your eyes if your imagination is out of focus." -Mark Twain[/COLOR]

    Ralph Barker
    Rio Rancho, NM

  5. #5

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    I already spoke to the dealer, who scoffed at the idea thaqt it could be faulty. Just dev'd another sheet and yet again have irregular grubby dark splodges of about 0.5 to 1mm in the emulsion. Not dust, this is within the emulsion and soft edged splodges, rather than sharp dust. Hes getting this film back. I had some faulty paper from him once too and did not bother to return it. Again I phoned him and his manner was the same...an outright assumption that I had ballsed up. I also had a ridiculously dodgy dry mounting press from him too (supposedly just serviced) but with so many glaring problems (like the vacuum pump did not vacuum) and the lid was miles out of alignment) that is was highly doubtful it had been serviced (no documentary evidence provided of the service either). I shall see what he says.........

    Tom

  6. #6
    SchwinnParamount's Avatar
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    If it is the GG then the problem is lack of proper focus as the GG would mislead you into thinking you were focusing on object A. That should mean that Object B (farther away) or Object C (closer) IS in focus. If you see that then the GG is the problem. If EVERYTHING is soft then your film is crap

  7. #7

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    Perhaps if you got a friend to shoot a sheet or two of your Maco film thru their camera it might tell you what you need to find out???

  8. #8

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    Quote Originally Posted by SchwinnParamount
    If it is the GG then the problem is lack of proper focus as the GG would mislead you into thinking you were focusing on object A. That should mean that Object B (farther away) or Object C (closer) IS in focus. If you see that then the GG is the problem. If EVERYTHING is soft then your film is crap

    Thanks, that makes sense and I guess it could not be so far out that nothing is in focus (I hope). Judging by the amount of variation of how far racked out the camera was depending upon which focus point I chose or how much tilt was employed (and apertures), I am fairly confident I s'pose that and GG error would have shown as you mention, in differential focus not no focus!

    But, no, nothing is sharp at all. There is an equal mushiness everywhere. All 10 sheets are gone and in any case, I know nobody who shoots 10x8, but in future a quick post on APUG would remind me of who in the UK who does in the UK. I bought a 10 pack as I believed the film to be the same as Efke pl100 and at the time had no cash for bigger boxes! Boy am I glad I bought no more....

    It also looks like there is some sort of halation problem as well. On the line where mountain meets bright sky, I would have expected a fairly etched line. Not so. Again it looks like there is halation around this border, but this may be relaqted to por resolution again rather than halation itself. Those mucky spots inside the emulsion of the film tell me that something must be very wrong.....I've never seen it before.

    I dev'd a mates FP4 plus 120 in pyrocat the other day and was very pleased with the results, so I am looking forwards to FP4 in 10x8 very much. I think Ilford can count on my business for film now.

  9. #9
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    Can you try placing a sheet of known good 4x5 (er, sorry, make that 5x4) on an 8x10 holder with tape and then take a shot? This should be enough to find out. If good film is not firm, then it sounds like a GG problem. tim

  10. #10
    Ole
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    Quote Originally Posted by Tom Stanworth
    It also looks like there is some sort of halation problem as well. On the line where mountain meets bright sky, I would have expected a fairly etched line. Not so. Again it looks like there is halation around this border, but this may be relaqted to por resolution again rather than halation itself. Those mucky spots inside the emulsion of the film tell me that something must be very wrong.....I've never seen it before.
    I seem to remember that you focused on the hyperfocal distance?

    Don't.

    That could be why your horizon is mushy. If you use the hyperfocal technique, the horizon will always be just at the edge of unacceptably unsharp - that's what it means.

    I have had very good results with the same film (in 18x24cm size) in my antique plate camera, so it is not a general problem with Maco UP100!
    -- Ole Tjugen, Luddite Elitist
    Norway

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