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sean_yates

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Posts posted by sean_yates

  1. Why is the quality of the reproductions so variable?

     

    <p>

     

    In this issue Messers Fatali & Schory's work looks really good but

    Mr.s Spence & Kirby come off pretty dark and mucky. Similarly in the

    SEP/OCT issue with the Mammoth Camera Workshop review and portfolios -

    Paula Chamlees work was done MUCH better justice than had been done

    when you ran an entire article on "High Plains Farm" in the MAR/APR

    (or was it May/June) issue. I've seen Kirbys work in Lenswork

    Quarterly and know it can look better than it did in this issue of VC.

     

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    Of late you have been including tech info in the photographers

    profiles - for which I am greatful! Keep it at the end though as an

    aside rather than dwelling on it UNLESS the article is specifically

    about technique. If the technique is something off the beaten path,

    some amplification would be appreciated.

     

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    My favorite issues were the MAR/APR 95 and JAN/FEB 98 - both CHOCK

    FULL of good material. I feel like there hasn't been an issue that

    useful in a while.

     

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    Gordon Hutchings' articles have been quite good and his writing style

    is much apprecaited.

     

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    How about an article, or series on "What's in my Camera Case" - i.e.

    a break down by photogs with a shot of their case -how they pack it

    and when/how they use it, how it applies to their approach, etc. The

    same thing could be done for darkrooms, etc.

     

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    For me the "How" of photography is important, but the "Why" moreso -

    I am VERY glad John Paul Caponigro cotributes his interviews! The

    darkroom and camera kit articles would hopefully illustrate how the

    two - the "how" and the "why" work together.

     

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    Little bummed at the re-tread of Ron Wisner's on-line Q&A column in

    this last issue. I guess that may be part of the reason for my

    fading enthusiasm - I'm on-line now and don't feel as isolated as I

    was when I first started subscribing. Used to be I couldn't wait the

    two months! I think maybe that's why a lot of us were surprised at

    the Fatali article - we had all known about the incident and

    discussed it pretty extensively back when it happened. I guess a lot

    of us assumed it was common knowledge.

  2. I've been lucky enough to own both a pristine Beseler 4 X 5 from the

    early 80's (I think? it's blue - not black) and a "Berkey Omega

    Universal Pro-lab 4 X 5" with auto-focus that came from a U.S. Govt.

    auction.

     

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    I have no specific preferences. The pro-lab auto focus was a nice

    feature and the voltage regulator and motorized elevation unit on the

    Bes is nice. I have to cut the 6" X 6" VC filters to fit the Bes, but

    not the Omega. I think the Bes is easier to re-align if it drifts.

    Certainly I did not look forward to adjusting the Omega when I moved

    it (which I did, 3 times - within the U.S. and once overseas).

     

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    The Bes has the tilting top which will allow you to make REAL BIG

    enlargements on the wall if you have the right lens and can mount the

    enlarger on a rolling stand that is stable enough not to move during

    exposure. Also if you move up to 8 X 10 there is the Alan Ross Cold

    light adapter.

     

    <p>

     

    With the Bes there is the neg-a-flat negative carrier and the one for

    roll film - allows you to turn a knob to advance the film from frame

    to frame.

     

    <p>

     

    The Omega seemed to be more susceptible to vibration - a heavy

    enlarger head extended aaaaaaaalll the way up to the top.... I'm not

    sure it showed in the prints I made, but I was always nervous about

    it.

  3. I've owned Majestic, Bogen and Ries and used all under 8 X 10

    cameras. I have used Gitzo sticks under Betacams and was impressed,

    but I emphatically DO NOT like the screw on leg clamps! They seem to

    freeze up at the slightest provocation. Maybe that's becuase the

    ones I used were rental sticks and weren't properly cared for -

    cleaned and lubed and so on.

     

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    The Majestic is one helluva pair of sticks. After the apocalypse,

    the giant cockroaches will be using Majestic tripods under Calumet C-

    1s. A used set is a good investment. However, I was never happy

    about carrying those things anywhere. They really belong in an

    environment where you don't plan to move around a whole lot, or where

    there are nice smooth floors so you can put them on a dolly.

     

    <p>

     

    The Bogens I have owned - 3046 & 3036 have carried my 13 lb. Kodak

    with no difficulty - but I would prefer to attach a Majestic geared

    head to them than any Manfrotto product I have seen in the flesh.

    But I have not used the Bogen geared heads. My last set was the 3036

    and I did have the Majestic head on it and was very pleased. The leg

    angles adjust independently and it was plenty tall enough for

    anything I was ever going to do.

     

    <p>

     

    While they are a good bargain and will last with care, they are not

    in the same league as the Majestic or Ries. The castings are kinda

    cheap and I have broken them in my hands. And I'm no long shoreman

    or mill worker - I'm a librarian.

     

    <p>

     

    Ries is startlingly expensive new. I would not have a set if I

    weren't very lucky. When I got them, I knew I would never switch.

    The hardware is quality and some parts can be replaced by a trip to

    the hardware store. When I got mine they were coated in dust and

    yeck - but it was no problem to dissassemble them completely, clean

    and lubricate them, and put everything back together in an evening.

    Mine weigh less with the single tilt head than the quoted 15lbs,

    without head, on the website. Some think mine are made of ash,

    others oak. I have never been able to identify wood once it's been

    processed. Currently they use rock maple - the same stuff used in

    bowling alley lanes and piano pin blocks.

     

    <p>

     

    Here's my sticks Schtick. I put the head on my foot and extend the

    legs until they touch my chin. Maybe a little less. One leg, the

    front, or leading leg, the one parallel to the lens axis, is left 2

    inches or so longer than the other two.

     

    <p>

     

    Then I turn it over, set it up as if to take a shot, and attach the

    camera. I leave the camera closed - lens attached. I put my

    shoulder to the head/crown/camera and lift, standing upright and

    closing the legs as I go, so the camera/head is balanced on my right

    shoulder and the legs stick out in front of me. My right arm curves

    over the legs and holds them in place, my left hand carries the

    camera case and a bag of six holders hangs from the left shoulder to

    my right hip.

     

    <p>

     

    When I find something I want to shoot, I put the case down and bend

    at the knees and sort of dump the tripod off my shoulder so the

    leading leg touches down first. Then I can adjust the height and

    angle of the legs with my hands on the two shorter legs - kind of

    like stearing a wheel barrow. Once I get things how I want, I lock

    the tri-locks.

     

    <p>

     

    If I have to adjust the leg height, I usually adjust it with the

    angle of the leg, rather than extending the leg. If I do have to

    extend it, I either release the clamp and rock the tripod on the

    other two legs until the third leg drops to where I want (and then

    tighten the clamp) or I get down on my haunches and release the clamp

    and S - l - o - w - l - y raise one leg at a time.

     

    <p>

     

    I am on the short side and prefer to keep the center of the ground

    glass a little below eye level. Any higher than that and I have to

    use a case or something which I'd just as soon avoid.

     

    <p>

     

    The legs don't need a center brace because the tri-lock is attached

    to the crown. Have you been to their web-site?

    http://www.riestripod.com

     

    <p>

     

    Before I lucked into the Ries, I had planned to get an old wooden set

    of movie sticks - O'Connor or Mitchell, Birns & Sawyer, etc. They

    might be worth a look.

  4. You can use electrical contact clips - a.k.a. "Gator Clips" they

    leave a much smaller footprint than clothes pins. Those prone to the

    recretional use of pharmaceuticals used to call them "roach clips".

     

    <p>

     

    I still use wooden clothes pins but I take 'em apart and reverse

    them. I'm not sure how to describe this, but the idea is you swap

    ends so that the flatter part, the end you would normally grip to

    open the clothes pin - becomes the gripping part and the usual

    clothes gripping part becomes the outside of the gripping part.

     

    <p>

     

    Take one apart and you'll see what I mean. I hope.

  5. Deardorff was in business from 1923 to 1988.

     

    <p>

     

    In that time, there is very little they DIDN't make. Revolving, not

    just rotating Graflock backs exist, but yeah, they're hard to come by

    and they go for a pretty penny. Well, actually, not a pretty penny,

    just a WHOLE BUNCH of ugly ones.

  6. Not sure this is appro-poetic to this thread or not.

     

    <p>

     

    I never claimed to be the cripiest fry in the basket, but I could

    NEVER understand why Ilford instructions packaged with developer and

    tech sheets have the same goofy TIME/TEMP conversion chart/graph.

     

    <p>

     

    Blamed thing is useless IMHO - too small and vague - leaves you

    guessing. Why can't they just publish T&T like Kodak does in their

    B&W Darkroom Dataguide - i.e. Tri-X Pro at iso 320 in D-76 1:1 @ 65

    68 70 72 & 75 degrees or whatever?

     

    <p>

     

    Then I came across a conversion method in Aaron Sussmans book from

    the late 60's "Amatuer Photographers Handbook".

     

    <p>

     

    You take the given time at ANY given temperature for whatever

    combination you've got and can calculate the given time at any other

    given temperature fairly quickly and certainly with a finer degree of

    precision than with the aformentioned graph.

     

    <p>

     

    I know this may seem hypocritcal coming from a guy who develops by

    inspection and "eyeballs" exposures with an incident meter but I find

    it re-assuring to have something that seems at least a bit less of a

    SWAG than the chart.

     

    <p>

     

    It goes like this:

     

    <p>

     

    "Given the developing time at 68 degrees, you convert to the time at

    any other temperature by multiplying the given time by the desired

    temperature factor T. To convert from the time at any temperature

    other than 68 degrees, to any other temperature, you divide the time

    of the given temperature by its own factor and then multiply by the

    factor of the desired temperature."

     

    <p>

     

    Here's the chart:

     

    <p>

     

    Temp in Farenheit followed by factor

     

    <p>

     

    64 deg factor 1.23

    65 1.16

    66 1.10

    67 1.05

    68 1.00

    69 .95

    70 .90

    71 .85

    72 .81

    73 .78

    74 .75

    75 .72

    76 .69

    77 .66

     

    <p>

     

    This is on page 382 of the edition I have. Hopefully the times and

    factors will line up when I "send" this to the forum. FWIW Sussman

    has all kinds of neat info in his book. It would definatley behoove

    us to look over old photo manuals at yardsales, library used book

    sales, etc. etc. etc. My copy came with an enlarger my wife bought

    me a while back.

  7. Thanks a BUNCH!

     

    <p>

     

    Additionally, somehow or other Bob Atkins accessed a catalog citation

    for it on-line at Edmunds and I placed an order. We'll see if I get

    it. When I go to their on-line catalog it indicates that that

    portion is under construction. Whatever.

     

    <p>

     

    But Thanks a lot Tuan - if they drop the ball I will have your pdf

    version which I've printed out.

  8. I e-mailed Richard Knoppow recently, and he had this to say:

     

    <p>

     

    "I think this is one case where breaking the rules is better than

    following them. In principle, if the rays of light going through a

    plane-parallel plate are parallel the plate has no effect whatever on

    them. Light from an infinite source are parallel. Rays which go

    through the plate at an angle are off-set by an amount proportional

    to the angle, the thickness of the plate, and its index of refraction.

     

    <p>

     

    Light emerging from a lens is convergent. In principle a plane

    parallel plate in a convergent or divergent beam of light will

    introduce some spherical aberration (even though there are no

    spherical surfaces, it is rather the light wavefront which is

    spherical), and some chromatic aberration since the index of

    refractionn varies with wavelength.

     

    <p>

     

    Now, if we consider the relative amount of convergence from a single

    element of a convertible lens with long focal length, it will be small

    compared to the thickness of a good quality filter. So, even though

    the filter _will_ introduce some aberrations they will be minor and

    probably negligible especially considering the amount of chromatic

    already present in these lenses.

     

    <p>

     

    Meaning, that the filter probably does less damage on the

    back of the lens than on the front given the type of lens.

     

    <p>

     

    Turner-Reich individual lenses seem to have considerable chromatic

    error. Probably any narrow filter will improve them. The Orange

    filter (probably a #15 or G filter) cuts out virtually all blue light

    and some green also so should sharpen up the T-R cells considerably.

    If you are using gelatin filters the effect will be so small that it

    probably would he hard to measure, they are so thin they have

    practically no effect on the optical path except for

    extremely short focus lenses.

     

    <p>

     

     

    A note: Ideally, a single cell should be used behind the diaphragm,

    generally the correction is better this way. However, single meniscus

    lenses have a slight telephoto or retrofocus effect, depending on

    which side you are. The principle planes lie outside or nearly

    outside of the lens, one of them usually about at the surface of the

    convex side and the other some distance away from it. What that means

    practically is that if the performance of the lens is acceptable when

    its on the front of the shutter the bellows draw will be

    significantly shorter. My Ansco/Agfa camera can not focus the longer

    element of my T-R lens when its on the back but has just enough

    capacity to focus it on the front. I see little difference with the

    shorter FL cell, which I can focus on either side. So, although

    putting the single cell on the back is good practice it can be

    used on the front too with little visible effect on performance.

  9. Anybody know how fast the sun moves? I'm assuming there's someway to

    gigure out how much time has passed by the change in shadows, but of

    course that'd be a function of time of year, lattitude, etc. and of

    course you couldn't do it on a cloudy day or in Greenland in

    winter,etc.............

  10. 2 X 2 what? Centimeters? Inches? or Feet?

     

    <p>

     

    Seriously though, 6 X 6 cm (2.25 square) is usually considered medium

    format - your Hasselblads, Mamiya C330's Rollei-flex's etc. Plenty

    of folks shoot that and are pleased as punch with it, but Large

    Format is more than film size - it's camera movements and a mind set.

     

    <p>

     

    Any decent large camera store will carry medium format gear and

    there's always Ebay. There are also plenty of M.F. shooters on this

    website (although they don't admit it publicly) and at www.photo.net

  11. Ron Wisner has this to say:

     

    <p>

     

    "Frankly, after many bench tests, I have never been able to find any

    effects from the use of good quality glass filters, as long as they

    are used on the outside of the camera. Inside, behind the lens, can

    introduce some astigmatism. I have found from experience that some

    plastic filters are not especially good, but gels are, of course, the

    best."

  12. FWIW,

     

    <p>

     

    The only one I have been fortunate to see was at the Museum of

    Science and Industry in Chicago in a display on Pictorial Photography

    circa 1933.

     

    <p>

     

    It was at least as big as a #5 Ilex, and probably bigger. It was

    marked Wollensak. It was air activated (piston on the left side as

    you look at the camera from the front) and had at least 3 speeds, T,

    B, and 1/30th or something. I doubt it could function much faster

    than that anyway, given it's size.

     

    <p>

     

    I cannot honestly recall now if the lens was mounted in the usual way

    (shutter between two halves of the lens) or it was "front mounted" -

    i.e. shutter mounted to outside of board, lens mounted to front of

    shutter. But I seem to recall the former rather than the latter.

     

    <p>

     

    Maybe someone who has one of the monsters will chime in?

  13. I think you had it right the first time. I can't count the number of

    imaged I've seen of Adams with his Stetson, and do recall one image

    of him using it as a shade with hid 'blad. Weston on the other hand

    more often than not seems to have gone "lidless". I can only recall

    seeing two shots of him with a chapeaux - a Campaign hat and a

    beret. In his list of equipment for his Guggenheim, he always seems

    to mention the "Worsching Counter Light Cap" a combination lens

    shade/lens cap.

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