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Refocus That
Please - by Bill Moll
This month’s program will be the PSA Sequence Show and
Making Stereo Card workshop. The
Sequence show has gotten good reviews from other clubs who have presented
it. It is always interesting, but
appears to be even better this year.
Steve Hughes will give a workshop on making stereo
cards. This will be a reprise of his
practical demonstration at the 3DFest. Steve
has made his card mounting into a creative venture. Unlike slides, where the mount becomes
important only if it doesn’t keep the chips stable in the projector, the card
mount is an integral part of the card image.
Historic cards often have a back which is as inspiring as the
front. The design and presentation of
the overall card is a major element of Steve’s workshop.
The meeting is the 3rd
Friday of this month – April 16. Bert Arps will provide the refreshments. We will meet at 7:30 PM
at the Congregational Church @ 2676 Clairmont Road
(about 1 1/2 blocks south of I-85) This is the Church up the winding road,
through the woods. If you have any
questions, call Bill @ 706-859-7726.
There were 16 people at the March meeting for the
March’s competition results were:
Slides
First Essential Waterfall Al Hess
Second Anti-bellum Home - Newnan Bert Arps
Third Agrirama
Blacksmith Shop Bill Moll
HM Hookey
at the Rock Hole Al
Hess
HM School’s Off – Snow Day Al Hess
HM Centennial Spouts Huck Devenzio
HM Sky Tram Larry
Moor
Cards
First Toooot Larry
Moor
Second Choo Choo Trains Larry
Moor
Third Front of Work Ed Ganger
Sputnik workshop
Ted
Baskin’s workshop consisted of three pointers on how to tune-up your Sputnik – reduce internal reflections with flocking,
adjust the focus and check the shutter speeds.
Ted
handed out a description of how to flock the Sputnik, a cutting diagram for the
correct sizes and flocking samples. The
flocking eliminates light reflections in the light path from the lens to the
film when taking photos. Additionally,
Ted recommended adding some foam to the doors to eliminate light leaks, since
they occur even with baffles molded in the door edges.
Adjusting
the focus is fairly simple with the Sputnik.
Ted demonstrated which pieces to remove and screws to loosen. He also used a very simple “frosted glass” –
just a piece of slide glass taped to an inexpensive loupe. The tape acts as the frosting and is a lot
simpler and cheaper than finding a frosted glass or a big focus screen from a
camera. Ted recommended adjusting the
focus at the setting of 15 feet. This is
the primary focus for his photos. (This
is a good recommendation. The mechanical
movements for focus are just approximate.
If you set it correctly for 15 feet on the dial, it won’t get too far
off in setting the dial in the 7 to 25 foot range. This takes care of 99% of the main objects in
your photos. If you set it to be correct
at the infinity dial setting, the focus at the 10 foot dial setting can be
pretty far off.)
Ted
also checked the shutter speed of various Sputniks. Unlike many other stereo cameras, the
shutters are not linked. The two speeds can
be quite different. Additionally, they may
vary from shot to shot. The shutter from
a Lubitel (available cheaply everywhere) is the same
as the Sputnik, so it can be used to get a good match between the two shutters.
Ted
demonstrated several other improvements, including a hand grip shutter release
attachment, various lens shades and some other lenses which made a really sharp
looking stereo camera.
Sputnik references from
Ted
Online Sputnik manual:
http://www.rmm3d.com/3d.encyclopedia/manuals/sputnik/sputnik.html
Very good link to Sputnik pages which contain even more links to equally good
sites:
http://www.pauck.de/marco/photo/stereo/sputnik/sputnik.html
The most advanced Sputnik modification that he has seen:
http://seriousviewers.com/projects/mfcam2/mfcam.htm
Flock paper - Edmund Scientific, Protostar (make sure
that you get adhesive back)
http://www.edmundoptics.com/IOD/DisplayProduct.cfm?productid=1502
http://www.fpi-protostar.com/flocked.htm
Light trap foam - Mircotools (micro-tools.com)
make sure you type the dash
http://www.micro-tools.com/Merchant2/restore.htm
(This imported $35 kit contains five 10" X 10" self-adhesive sheets
of varying thicknesses)
http://www.micro-tools.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code= MT&Product_Code=LBMM-KIT(The $20 kit may not be
self-adhesive.)
Future workshops
At
the February meeting, there was a discussion of potential workshop
programs. Examples which I recall are:
Stereo
window
Changing the window on-screen using the Brackett device
Examples of different windows on the impact of the resulting
image
Cropping
Using different mounts to improve the image through
eliminating extraneous material, emphasizing the main subject or fixing mounting
problems
Ortho
viewing
Effect of the differences in focal length between the taking
and projecting lenses
Effect of the viewer’s position relative to the screen and
projector on the realism of the image
Slide
show program
How to develop a
slide show for presentation with dissolve, music, etc.
Mounting issues and sequencing
considerations
Problem
slides
Examples of problems with mounting or images and how they
can be fixed
If
you have ideas for other workshop programs or a specific workshop for which you
would like to volunteer, please let me know. The workshops do not have to be about slides or mechanical in nature, just about 3D
photography. The schedule for next year
is currently empty!
Theme competitions
The
primary lesson learned from our “
February 2005 3DFest/regional
NSA meeting
I will bring this topic to a vote at the April
meeting. It is probably too late to do
PSA competition, but we can do a stereo theater, exhibit room, workshops and
trade show without too much trouble. I
think that we can continue to grow the local club and give a boost to the
regional 3D membership with such an event.
February 12-13 looks like the weekend which would avoid known conflicts.
If the club agrees, I will start looking for a
facility.
Dues are due!!!! Pay them to Marilyn Morton.
Refreshments:
April Bert Arps
May Les Heyward
September Dodo