Jump to content

james_chow4

Members
  • Posts

    56
  • Joined

  • Last visited

    Never

Posts posted by james_chow4

  1. One thing I wonder about is how does one exactly know what the

    incline angle of the rail is or the incline of the focusing plane? My

    ballhead (Linhof 3) certainly doesn't have any markings on it, and to

    compute the incline of the focusing plane, you'd need some

    rangefinder device to measure distances precisely and then compute

    the angles with an electronic calculator. Furthermore, if you carry

    an electonic calculator, you may as well program the DOF formulas

    into it and compute it directly.

  2. The Rollei 6008i is far more capable than the hasselblad, and no more

    expensive. Features like a built-in winder, TTL flash (of course)

    make shooting weddings a snap. Even for outdoor portraits, there's

    matrix, 5-spot, and 1% spot metering. Plus there are special portrait

    lenses available like the zeiss 110/2 planar with leaf shutter and

    180/2.8 schneider tele-xenar, designed for fashion photography.

  3. I have 3 gitzos (1228 carbon, 340, 410). The 1228 isn't heavy-duty

    enough for my Toyo VX125 monorail (too top heavy...tripod needs a

    larger footprint and more mass in the legs). I use the 340 in the

    field (a little heavy for overnight or multiday backpacking trips,

    but fine for a short hike) and the 410 when I'm close to the car or

    need absolute stability. The 340 and 410 don't have the useless

    column (reduces stability, increases weight), have large 'wing nuts'

    to loosen the top segment, and bubble levels to level off the tripod.

    They both have 3 segments, so I often only have to extend the first

    segment for adequate height. The carbon 3-series seems a little

    heavier than I'd like (1349 only weighs 1 lb less than the 340 but

    costs 2.5x more). Something in between that and the current 2-series

    would really be ideal, IMHO. For your purposes, the 340 deserves a

    look.

  4. I made my decision after trying out all the models of interest at a

    the Tokyo photo show (tried Linhof, Arca, Toyo, Wisner, Ebony,

    Horseman, etc.). IMHO, a monorail is faster to use, which is one

    reason why I selected a monorail despite shooting some landscape (and

    architecture). I can dial the movements in faster, especially when

    back movements are necessary. Wide angle lenses are easier to use,

    too. There are compact monorails that weigh about the same or less

    than the mastertechnika and unpack/pack up just as quickly (Arca

    F-line, Toyo VX125, Linhof Technikardan). Phil Greenspun has an

    article on the mastertechnika on photo.net and comparisons with a

    monorail.

  5. Having both a MF SLR 6x6 system and 4x5 lightweight monorail, I would

    agree with Paul. Get a MF camera. If you want to do macro, you'll

    need a SLR over a rangefinder. For handheld shots, a rangefinder is

    faster to use and lightweight, but not as precise in focusing for

    close up portraits. The slr will have the advantage of DOF preview.

    For portraits, I use a 180/2.8 and 300/4 in 6x6, while I reserve the

    4x5 for architecture/landscape. I couldn't imagine handholding a 4x5

    w/ a 300/5.6 for a portrait!

  6. You can always use Fuji quickloads (limited emulsions...astia,

    provia, velvia, 64T, Neopan 80) if you don't want to have to load

    your own holders/contend with dust. Also, my lenses, which are

    current schneider models in copal shutters, don't allow one to cock

    the shutter unless the switch that locks open the shutter (for

    composing) is set to the closed position...this has saved me numerous

    times. :-) (a brilliant idea, IMHO.) If you use conventional

    holders, don't forget to flip the darkslide around to the black side

    when reinserting, so you know that side of the holder has been

    exposed.

  7. In Japan, we don't have changing tents, just changing bags. They're

    cheap ($26 for 4x5, by Hakuba, I think) and they do the job. It's

    what all the LF guys here use. They also have an 8x10 size. I think

    the most expensive model sold here (by Hama) is around $70. $150 for

    a changing tent...that's ludicrous. :-)

  8. I've been using quickloads but recently started using conventional

    holders for access to more emulsions. I have yet to have dust

    problems. For one, I use the Toyo holders (they claim the light seal

    doesn't fray). Second and most important, I load the holders in a

    changing bag in the shower (I don't run hot water beforehand). The

    showers in Japan are one-piece fiberglass moulded units of a sink,

    hose w/ shower head, and drain on the floor next to the sink (so by

    showering each day, you essentially wash the floor clean :-) ). I

    carefully blast each holder off (inside in all the grooves and both

    sides of the darkslide) with canned air, and put them into a new

    ziplock bag immediately. I also blast off the exterior of the film

    box and put that into the ziplock bag, and then load all the contents

    of the ziplock bag into the changing bag quickly and zip it up.

     

    <p>

     

    When shooting out in the field, I use a blower on the holder, making

    sure there's no dust on it before inserting it into the camera. I use

    a brush/blower on the darkslide, as static tends to attract dust.

    After I slowly remove the darkslide, it goes either into the ziplock

    bag (and gets cleaned with the blower before reinsertion) or into the

    quickload box. My philosophy is that if you keep the darkslide clean,

    dust won't collect on the light seal on the holder, nor will it

    collect on the inside of your camera. So far, so good. I won't vacuum

    holders or the bathroom...that blows dust all over the place.

  9. I recently did an overnight backpacking trip in Sequoia NP, hiking up

    from 7200 ft to 9300 ft (one-way distance was about 7 miles). This is

    what I brought..phototrekker AW pack w/ Toyo VX125 monorail, 90/5.6

    super angulon XL, 210/5.6 apo-symmar, 300/9 nikkor M (all in Linhof

    boards), Toyo 4x loupe, compendium hood, 95-110mm center filter for

    the 90 XL, 95mm B+W kaseman circ. PL, 95mm B+W UV, 0.6 Lee grad ND, 4

    Toyo holders, quickload holder, half box of quickloads, sekonic L408

    meter. Darkcloth was my Pearlizumi cycling windbreaker.

     

    <p>

     

    That was part of my equipment. Then there was Rollei 6008i 6x6 slr

    with spare film insert, 90/4 apo-symmar and 40/3.5 super angulon

    lenses plus maybe 15 boxes of 120 film along with a Gitzo 340 tripod

    and Linhof profil 3 head and RRS quick release attachment. All this

    stuff weighed about 40 lbs, plus another 5 lbs for 1 qt of

    water,water filtration system, food, and a minimal amount of clothes

    (was cold at night...35F). I talked my friend into carrying my

    sleeping bag in his pack, as he only carries a 35mm slr.:-) I brought

    the same equipment along in Thailand PLUS the 180 and 300mm lens and

    a 1.4x teleconverter for my 6x6, but I didn't have to bring the

    food/clothes.

     

    <p>

     

    Needless to say, this was way too much equipment (had to leave the

    180/2.8 and 300/4 tele-xenars for the 6x6 at home...4 kg for those

    two lenses). Next time, I'll rethink my strategy...probably medium

    format for multi-day trips if I don't know what to expect to see, or

    the LF if I know there are just a few shots I expect take, but not

    both.

  10. From my experience at shooting evergreens, I've always presumed it

    was the trees absorbing light that resulted in underexposure. If you

    look at evergreens under afternoon sun, you can't see any detail on

    the trunks. Any portion of the tree other than the tips of the

    needles are black or close to it, and velvia's going to make it

    appear black.

     

    <p>

     

    Another note of metering when the tips of the trees are in directly

    sunlight. I've had a similar problem recently. If you use the direct

    sunlight ambient reading, the rest of the tree ends up being around 1

    stop under. Yet, if you take an ambient reading in the tree's shade,

    you'll blow out the sky. The only choice is to average. I've gotten

    good result very late in the afternoon, when the sun is below 30

    degrees, as the light rays are close to horizontal, so they can

    'penetrate' the tree to expose the trunk to expose parts of the tree

    that would otherwise be in the shade of needles (depends on the tree,

    of course).

     

    <p>

     

    In the harsh lighting of the SW US, I find this to be especially true

    (light seems very cold) whereas in humid Asia, it's not as bad (I

    shoot about 95% velvia). My conclusion was that for the SW, unless

    the sunlight is faint or you're shooting in the woods, you'll get

    better results w/ E100S or Astia w/ a warming filter. I'll check some

    chromes that I recently took on velvia quickloads, as they contain

    evergreens in the foreground w/ lots of blue sky (taken in the Sierra

    Nevada at 9000 ft around 5:30pm).

  11. The current Toyo catalog doesn't list a 5x7 field...only a 5x7

    monorail. Toyo doesn't even list 5x7 holders in their catalog. There

    is a new 45AII L field camera. It's identical to the 45AII except it

    accepts Linhof boards.

  12. In the July issue of Shashinkogyo, a Japanese photo equipment review

    mag, they feature a new vacuum back made by a Japanese company. In

    fact, they not only offer a conventional vacuum back, but a vacuum

    easel and vacuum quickload back. Prices are still high, but more

    sane:

     

    Vac plate: 15000 yen (list)

     

    <p>

     

    V holder (5x4"): 9800 yen

     

    <p>

     

    V adaptor set (whatever that is): 3500 yen for 5x4"

     

    <p>

     

    Pocket pump: 3800 yen

     

    <p>

     

    Quickload holder: 98000 yen

     

    <p>

     

    From the photos I saw in the mag, it seemed the vacuum holder had a

    pressure plate unit that connected to the hose/bulb, as if one could

    (possibly) install this in a standard quickload holder to save money?

    I'd have to actually see the stuff to know.

  13. One friend of mine performed a test on the gitzo 1227/1228 carbon,

    the gitzo 410, and a Ries wooden tripod. He was originally intending

    to get the Ries, thinking it would be more stable. In the shop, he

    suspended a 5 lb weight to the top of the tripod. He then placed a

    cup of tea on the tripod and swung the weight. The Ries fared the

    worst, while the lightweight carbon was noticeably better. However,

    the 410 was rock solid.

  14. I've stored my polaroid magazine (pack film, half used) outside the

    fridge for half a year, and it was fine (polapan 672). I also store

    my open boxes of quickloads and polaroid sheet film in the fridge.

    As I live in a humid climate (Asia), the night before I shoot, I

    transfer the open film from the refrigerator to my dry cabinet (30%

    RH), which is at room temperature.

  15. Has anyone used the Sinaron 150 SE (75 deg coverage) or any of the Sinaron lenses? I *believe* this is the Rodenstock 150 apo sironar S (?), but would like some feedback on how the Sinarons perform, as I'm uncertain whether or not Sinar tests it while mounted to the board. I'm considering purchasing one and mounting it in a technika board.
  16. I use a Schneider 90 SA XL and have the corresponding Schneider

    center filter, but only use it if there's signficant movement and/or

    if the corners are of a uniform tone where fall off is more obvious,

    such as blue sky. You don't have to use the filter all the time..only

    when the darkening is noticeable. A 1.5-2 stop hit in speed when

    using velvia is pretty serious! I also shoot velvia, and due to the

    high contrast, it may tend to enhance the darkening in the corners.

  17. Like Bill, I use Merklinger's "hinge rule" to estimate the J

    distance. I find that I can estimate the tilt angle in my head using

    Merklinger's approximation that the angle is about the focal length

    in mm divided by five times the J-distance in feet (actually, it's

    the arcsine of the focal length divided by the J distance in the same

    units, but you need a calculator or tables for this). As Merklinger

    points out, Scheimpflug is not as tight of a rule as the hinge rule,

    as you have the additional variable of lens plane to film plane

    distance, which affects your tilt angle. In other words, you can have

    the lens to film distance close to the focal length of the lens and

    use only a little tilt, or have the bellows racked way out with lots

    of tilt. Both situations satisfy Scheimpflug, but only one satisfies

    both Scheimpflug and the hinge rule for the desired J-point. In the

    former case, the J-point is longer than the latter case, assuming the

    film plane is in the vertical position.

  18. It seems I have to overexpose the polaroid type 54 a tad for velvia

    to look right for my tastes (I usually rate it at 40)...this will

    require more testing. Just about everyone I know uses the polaroids

    just to determine if the exposure is 'in the ball park,' and then

    brackets a couple of shots.

  19. I had the same question and went with the 545i holder. Sure, the film

    is expensive, but you can see nearly the entire shot, so you know if

    the corner is going soft or the lens hood is in the way, etc.

     

    <p>

     

    However, I've always found it difficult to judge exposure from

    polaroids. I use type 54 for 4x5 and Polapan 672 and Polacolor 679

    for MF. Maybe it's because I usually shoot w/ velvia, so the latitude

    is much narrower and saturation much higher than that of the

    polaroid. What appears perfectly exposed to me on polaroid 54 ends up

    slightly underexposed on velvia (rated at 40, focusing distance is

    far, so it's not a bellows comp. problem). One friend of mine says

    his velvia chromes on 4x5 always seem to be 1/2 stop under the same

    chromes shot w/ his EOS, and one LF pro I know tells me that

    determining the exact exposure via polaroids is pretty futile.

  20. I have a technique question regarding converging verticals in architecture. I am in the habit of eliminating converging verticals on buildings except when I wish to emphasize some aspect of the building/composition, in which case I leave strong converging vertical lines. For this case,I'm mainly referring to rise rather than fall. However, I recently showed some poloroids I shot (no converging verticals) to a pro here in Japan who told me that usually, a slight hint of converging verticals is deliberately left in the shot since it gives the viewer a better feeling than a shot devoid of converging verticals. Is this common practice in the US in architecture photography, or is this just a cultural preference in Japan?
×
×
  • Create New...