james_chow4
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Posts posted by james_chow4
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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.
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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.
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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.
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I would try something like rubbing alcohol on a cotton swab. My pro
shop used this to remove grease smudges from my 6x6's mirror with no
problems (and it's silvered on the front side). I wouldn't use the
eraser (might leave smudge pencil marks, making it worse).
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Right, the salesman at Yodobashi Camera told me it was because the
Nikon lens boards have the alignment hole pre-drilled.
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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!
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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.
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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. :-)
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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.
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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.
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Toyo also sells these.
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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).
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I have the 210/5.6 apo symmar...incredibly sharp lens, sharper than
my 90/5.6 super angulon XL and Nikkor 300/9 M (lens sharpness, in
that order).
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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.
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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.
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If the smudge is minor, I merely breathe on the glass and use Kodak
lens tissues to gently wipe it until I can no longer see any smudge.
This way, it's only water vapor,assuming you haven't been drinking.
:-)
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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?
Rodenstock Depth of Field / Tilt/ etc/ calculator gizmo?
in Large Format
Posted
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.