don_wong
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Posts posted by don_wong
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Put a mirror at the subject location. With all of your rises, shifts
and tilts zeroed out, move your camera around, and when you
can see the reflection of your camera lens centered on your
groundglass, then your camera's axis will be perpendicular to
the mirror. Does that make sense?
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Steve:
<p>
Thanks for asking.
<p>
Please continue to do articles about digital. It�s the future of
photography, without a doubt. There may be other sources for
information about digital, but the revolution that we�re witnessing
deserves to be reported from many different viewpoints,
especially the ones that VC can provide.
<p>
For instance, an article could profile a great digital practitioner,
his or her techniques, how those techniques affect the final
images, and of course, a portfolio of images.
<p>
Don�t exclude the perspectives of the working professionals (for
digital or film.) For that matter, why make a distinction? All
practitioners, commercial, amateur, fine arts, young and old, are
gaining experiences that are worth sharing.
<p>
DW
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I'm a contributor to that exhibit and unfortunately I won't be able to
see it in NYC. An yes, I'm disappointed that the quality of the
repros is not the best.
<p>
When turning over images for use in some else's media, there's
very little control I can exercise over how well those images are
reproduced. Maybe when I become world-famous, ha ha. Often,
most of my effort is spent in negotiating the use fee, and by then
I'm very tired.
<p>
If you'd like to see some other Weisman images that didn't make
it into the show (I'm assuming my images made the final cut)
check out my website. www.donwongphoto.com
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Damon:
<p>
I wonder if a field test might settle your doubts about focus
accuracy, since final results on film are all you really care about,
not a test that might involve any number of variables (such as
where the matte surface of the groundglass is, or what the
Fresnel might be doing to throw off your focus.
<p>
Focus a subject on the groundglass and shoot a number of
sheets with a long lens wide open, using Kodak film in your
Kodak holder. However, on successive shots, refocus the rear
standard by 1/16 inch away from the plane of sharp visual focus.
<p>
Keep good notes on how each sheet was focused, and when
you examine the sheets, the one that's the sharpest will tell you
where your focus plane is.
<p>
Just a thought.
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I am anticipating the new single sheet Readyloads with guarded
optimism. The singles will take more room, but will have the
greater flexibility and security of keeping all sheets separate, ala
Fuji.
<p>
I've talked with many users of the old system. Some have had
many problems, others have had none. I had more problems
before disassembling and reassembling the holder. I suspect
that many of the problems stemmed from quality control in the
manufacture of the holders and basic design flaws in the overall
system, as well as user technique. (That's my own opinion, no
hard evidence.)
<p>
I only hope that Kodak will achieve the same track record as
Fuji's Quickloads (my experience: zero failures; also, I've never
heard any complaints), and that they will make enough of their
emulsions available in Readyloads.
<p>
Don Wong
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SK Grimes may be able to fabricate what you need.
skgrimes@ma.ultranet.com
(617) 951-1480
(508) 384-7107
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Try Badger Graphic, www.badgergraphic.com
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One instance I've found advantageous for putting filters behind
the lens is when using multiple gels to correct artificial light color
to match transparency film.
<p>
Multiple gels in front of the lens will cause ghost images of bright
light sources (such as HID lights in a gymnasium). I use 3" gels
for compactness, but they're too small to curve in front of the
lens.
<p>
Rear lens elements are smaller than front ones, so the 3" gels fit
there, with room for some curvature of the gels. The curvature
removes the ghosts.
<p>
There are problems with this method, but it's the best way I've
found to solve that particular ghosting problem.
<p>
Don Wong
Which 4x5 is fastest, easiest to set up in field?
in Large Format
Posted
Toyo VX-125. The fastest settin' up 4x5 I've ever used. Of
course, I've only used about 3 or 4. Bonus: it's pretty compact
too. Kinda pricey.