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don_welch

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Posts posted by don_welch

  1. James,

     

    <p>

     

    I had an MXT for 8 years. I loved it for most of that time. However,

    it apparently got "warped", because from one day to the next it would

    never align properly again. I worked on it for months without success.

    Also, the focusing would jump. I hated getting rid of it, but I had

    to. I bought a Saunders/LPL 4550 XLG. I've really enjoyed it, both

    the alignment and the secure focusing.

     

    <p>

     

    That said, I agree with other posters about buying most equipment

    used, and if the price is right, do it. My only fear about an MXT

    after the problem I had is in knowing whether or not the one you buy

    is aligned or can be aligned. This may not really be a common

    problem, but since it happened to me, it would be a worry.

  2. Jeff,

     

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    I'm sorry that I can't help you with accessories for the Cambo. I

    just wanted to say that when I bought a Cambo years ago (and I still

    use it), I called Calumet to see about a manual or ANY sort of

    instructions. I was told there weren't any.

    It's not a current model. Try Calumet for lensboards.

  3. Not getting into the question about why Fred fired the 5 assistants,

    I have to say that the yaw-free aspect of my Horseman is not just

    marketing. If I use it for a while and switch back to my old Cambo,

    I feel the difference in the efficiency of setup time. "Sensitivity

    and true feel for the craft" can't be quantified objectively. (The

    person that brings it up first can claim to have it, and that the

    other person wouldn't recognize it if it bit them.) But I can

    quantify and qualify efficiency of setup time, and I don't think that

    lessens my craft or skill in using the camera. If I wanted an easy

    life, I wouldn't be using a LF camera.

  4. LPL enlargers are Japanese-made, distributed under the Saunders brand

    name in the US. Calumet has a full line from 35mm to 4x5. Search

    their website for "Saunders enlargers" and you'll get them.

     

    <p>

     

    I use a Saunders LPL 4550XLG. It has a variable contrast head, which

    can quickly be switched out with a regular Black and White head or a

    dichroic head. It has been a joy to use.

  5. I use a Horseman LX-C, heavier and with some more movements than the

    LE, but I would recommend you strongly conside the LE if you can

    afford it. As others have said, 150mm may be a bit short for an only

    lens, but I made out fine with a 180mm for a while before I got a

    more rounded out group of lenses (over a period of years). 210mm

    would be even better.

  6. I agree with Jorge about the BTZS being an overcomplication. Of

    course, some people think that ANY zone system is too much to deal

    with, but like Neil Poulsen said, the point is to produce a

    predictable printing situation. That can't be done consistently

    without effort. Everyone sets out on this path and decides where to

    camp out, but don't let the worry that you haven't found the RIGHT

    system yet keep you from making photographs. Your experience with

    your own equipment and darkroom procedures is your best teacher.

  7. I agree with some of what Dan said. Pick one authority and stay put

    until you really feel you understand what is being taught. It's

    easiest to start with Ansel, since all the "beyonds" and "even more

    beyonds" start there, too.

     

    <p>

     

    There IS a slop factor to LF gear, as Dan said, but it can be

    minimized by careful work, without having to obsess over precision.

    If adherence to any system takes away the enjoyment of making

    photographs, it's not right for you. However, I find that careful

    attention to detail, including knowing how well-calibrated my

    shutters and light meter are, results in more consistently good

    images (technically). Use the system you choose, and your equipment,

    until they become second nature. Until you aren't thinking about

    technique, rather you are concentrating on what no Zone System can

    teach you: making art out of light and shadow. Get that part right

    and you won't need Harry Pothead to make you feel good!

  8. Ignoring for a moment whether there is quid pro quo affecting

    articles and ads in View Camera, I think the most disturbing thing

    I saw in the issue was the article on "View Cameras in a Digital

    World". The images used in the article are fine when viewed from a

    distance of 3 or 4 feet, but if you look at them from a normal

    reading distance, all but one are unacceptably unsharp. I'm talking

    about resolution, not focus. Five years ago this would have been

    fine, but when you are using a Sinar camera for product photography,

    and proclaiming ours to be a "digital world", I expect the final

    image to rival film, and this doesn't come close. The article is not

    of great length, it does point out some of the limitations of the

    digital medium, and it underscored the ease of use of the images

    after they are made as a big plus. However, as an "advertisement"

    that might attract film users to ditch their film and go over the

    wall, it fails. This is where I find fault with the magazine: I

    would not expect them to devote space to less than the best examples

    of traditional film images, either from an artistic or technical

    standpoint, so this should apply to digital as well. I don't think

    that if they are going to feature digital I should have to back up a

    ways to make it look right.

  9. Jim, this is obviously a very important topic to a lot of us. Scott,

    you talked about the constraints that having little kids puts on you.

    When my boys became teenagers, they had to have separate bedrooms, so

    there went my darkroom for a while. When they were both in college,

    and I finally had the money to do so, I completely rebuilt my

    darkroom and furnished it with the best equipment. Of course, at that

    point the very job that allowed me to finance all that took up all my

    time, so I was just as frustrated. I finally settled on a schedule

    of late night darkroom work, 2-3 nights a week, because my wife goes

    to bed early to get to work early. Other nights I often have to go

    back to the office to work. So I never sleep, I've cut years off my

    life expectancy, but I do finally get to turn out prints from a well

    planned and comfortable darkroom. The trade-offs are always there.

    Like now, I have only a fuzzy memory of what my dreams were when I

    was 25 or 30, or how I thought I was going to achieve them. Dreams

    can evolve and should to keep you going instead of giving up.

  10. To get really, really picky, the progression of bellows compensation

    from infinity focus (with no compensation) to any other extension is

    not linear, but logarithmic. For example, using the 13" lens just

    cited, you would need a 1 stop adjustment (factor of 2) at 13" x

    1.414 or 18.38", instead of half-way between 13" and 26", or 19.5"

    Like I said, this is really picky, but if you are going to the

    trouble of constructing a chart with a factor calculated at every

    inch of extension as Jonathan did (which was right the second time

    around) you might want to use the formula.

     

    <p>

     

    On the other hand, you probably need to balance out how much

    precision you need in exposure calculation with how precisely you can

    control your development process.

  11. I agree about the preferred use of TMax (or other more "normal" tonal

    scale films) over TechPan for 4x5. There are circumstances that have

    warranted its use over the years (very low contrast situations), but

    I think you will find yourself fighting the contrast for little gain,

    if any, over 4x5 TMax. BIG enlargments maybe, but still you won't

    have the tonal control you would have with other films without more

    trouble than it's probably worth.

  12. No thanks, I have an enlarger that I'm enjoying just fine. I also

    use my computer for printing color. I don't have to turn my back on

    one to enjoy the other. They are not the same thing at all. I can

    print three versions of any negative I have but that doesn't mean

    that I should "get my head out of the vapors" like that is something

    bad. The future has ALWAYS been here, so I don't have to make a daily

    habit of turning my back on the past just to feel OK. Please

    understand that I'm not speaking from an anti-digital point of view.

    I use it a LOT. Piezography is great, but as many people have pointed

    out in this thread, the comparisons are always between what digital

    is becoming or can be, and what conventional photographs have been

    for decades. I'm not looking to replace what I already derive

    pleasure from as if it were outmoded. It's not.

  13. Dave,

     

    <p>

     

    I can't address anything about the Arca-Swiss line. I do have a

    Horseman 45LX-C. I bought it slightly used for a lot less than list

    price.

     

    <p>

     

    It is very rigid. Movements are great. For studio or architectural

    use, it's very nice. Now, is it heavy and bulky? You bet. I have

    carried it, plus related equipment for miles up mountains or across

    sand dunes because I can't afford another, lighter camera for the

    field. On the whole, I have appreciated having that camera when I got

    where I was going, because I wasn't giving up anything as far as

    movements. If it were lighter, by a lot, it would be perfect. As it

    is, I still wouldn't trade it, because when I don't have to lug it a

    long way, it is very steady and dependable.

  14. John,

     

    <p>

     

    Washing in the expert drum works fine. Have you looked at Jobo's

    website? (http://www.jobo-usa.com) It has extensive information on

    all aspects of using the drum, including washing. They recommend a

    five minute wash, made up of 10 wash periods of 30 seconds each, so

    that enough fresh water is used to produce an effective wash. They

    also say that the washing intervals may be longer than 30 seconds

    without harm, but that the number of water changes is important. Jobo

    definitely recommends NOT using Photo-Flo or similar product in the

    drum, because agitation causes it to foam and it doesn't clean out

    easily. So do that in a separate tray or other container after

    washing is finished, if that's a normal step in your processing.

  15. Dave is right about framingsupplies.com. Their prices are the best I

    have found, and they have all the accessories. I have been

    frustrated by the several mat cutting setups I have used over the

    years, but I spent the money and got a Fletcher and it has allowed me

    to get the quality I wanted. Although you will find professionals who

    are able to make good cuts with minimal equipment, if they do a lot

    of cutting, they probably have top equipment. You have to figure how

    much it's worth to you. If you tend to print a lot of the same sized

    prints, Jeff's suggestion about having it done for you is good. I

    don't have a standard printing size that would accomodate that. And I

    often need it done NOW, so I couldn't wait.

     

    <p>

     

    Robert is right about sharp blades: they are essential for a good

    cut. Beyond that, no matter how much you spend on a mat cutter,

    practice a lot.

  16. I spent 30 minutes looking for any obvious explanation on the

    internet. I found reviews for 65mm and 75mm Nikkors in which the

    users commented on obvious falloff, but which they reasoned was to be

    expected with any wide angle lenses. I know this goes against

    Jorge's experience with the 65mm lens. I think that Michael might

    not notice it with his 120 and 150 lenses because of the greater

    coverage and the fact that falloff is greater with shorter focal

    length wide angle lenses. I use a 90mm Schneider, and falloff is not

    a big problem unless I'm pushing the coverage of the lens, and

    especially when the subject is evenly lit.

     

    <p>

     

    I think that Nikon lenses probably need the filters as much as lenses

    made by other manufacturers do, but the confusion arises from the

    fact that Nikon does not choose to make Nikon brand center filters

    available. However, since filters made by Hoya and others will fit

    the Nikon lenses, this is not a problem. I couldn't find anything to

    support Nikon lenses being magically less susceptible to falloff, but

    it is an interesting question that has crossed my mind before.

  17. Actually, it is pretty standard in 65mm wide angle lenses that the

    image circle produced is 170mm across. This compares to about 160mm

    for the diagonal width of a sheet of 4x5 film, so a 65mm wide angle

    lens would cover 4x5, but with no movements to speak of. You still

    have a good question there about the lower price. Maybe less glass.

    I don't know.

  18. I would say that N+1 is the same as pushing the film 1 stop. However,

    you will find "pushing" and "pulling" used for either exposure or

    development changes, or both. The Zone System, in its many forms, is

    more precise as to what constitutes a normal negative, or the

    deviations from normal.

     

    <p>

     

    N+1 results in the increase of density of a Zone VII exposure to

    match the density of a NORMALLY processed Zone VIII. This is

    accomplished by increased development time. (Although you may have to

    compensate for the slight increase in Zone I density by a slight

    decrease in exposure, as I said in the first answer.)

     

    <p>

     

    N-1 is accomplished by reducing development time to the point where

    the density of a negative exposed for Zone IX is lowered to match a

    NORMALLY processed Zone VIII. (And you may have to slightly increase

    the initial exposure to counteract the slight lowering of Zone I

    density)

     

    <p>

     

    Other Zones react to the change in development, of course. Lower

    densities react less and higher densities react more. If you expose a

    scene that contains a full range of light values and develop it for

    N+1, Zone VII will go to Zone VIII, by definition. Zone V will be

    somewhere between a normal V and VI. If the scene contained Zone

    VIII values to begin with, they will now be higher than Zone IX,

    because they were denser than Zone VII to begin with, and they react

    even more than Zone VII to the increased development.

  19. I don't think the previous answers addressed your question. First,

    look at your "normal" densities. If you check out most film

    calibration articles or books, the recommended density for Zone V is

    in the 0.65 to 0.75 range, and the density for Zone VIII would be in

    the 1.25 to 1.35 range, IF you are using a diffusion enlarger head.

    The values for a condenser enlarger would be slightly lower.

     

    <p>

     

    If you develop your film for a longer time, the increase in density

    is not linear for all Zones, which is what allows you to achieve the

    desired effect of increasing the contrast of the negative relative to

    normal development. The Zone I will not change very much, Zone V

    will change more and Zone VIII will change even more.

     

    <p>

     

    To achieve an N+1 development, expose for Zones I and VII, and

    increase your development until the Zone VII exposures match your

    normal Zone VIII density. You will notice that Zone I does increase

    some, and you might want to decrease your initial exposure by an

    amount that brings Zone I into the normal 0.1 above base and fog

    density. That might only be 1/3 stop or so. Development for higher

    than N+1 would require greater reduction in exposure. How much

    reduction is a function of any particular combination of film and

    development method. You would have to experiment to find what YOU

    need to do. This can be tedious, but it can be rewarding, too. Don't

    get so caught up in worrying about it that you don't take pictures.

    That can happen.

  20. I use a CPP-2 and expert drum with TMax 100. The real challenge with

    TMax is repeatability. You MUST watch your temperature to the tenth

    of a degree, and your methods for diluting your developer have to be

    precise. If you pre-rinse, as Sexton advises, get the temperature of

    the pre-rinse water exactly right. Don't let your development times

    get sloppy. Keep them carefully timed. Whatever developer/time

    combinations you settle on are up to you, but careful darkroom work

    is a big part of getting the results that the CPP-2 and TMax are

    capable of delivering.

     

    <p>

     

    Don Welch

  21. Peter,

     

    <p>

     

    I bought an X-Rite densitometer on eBay for about half price. It

    was used but well cared for, and it works very well. Yes, there are

    ways to use a spot meter instead, but it's not nearly as exacting as

    a real densitometer. You are still going to be approximating real

    density measurements, so you might as well get a step wedge and make

    visual estimates of comparison prints.

     

    <p>

     

    If you are doing extensive film development tests, as I have spent

    the last two months doing, a real densitometer is indispensable. I

    could never have finished my testing if I had waited for chances to

    use someone else's machine. It's not cheap, but it can certainly be

    worth it in time savings.

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