That is the COOLEST lens! I want one, I want one!~
IL Bill
Fred wrote:
[was: Vivitar Series One 28/1.9 PK for $60?]
there is at least another rare VS1 zoom - the 70-210/2.8-4 QDOS
novelty.
What`s the deal on this lens, I have a 70-210/2.8-4 (used it
tonight as a matter of fact), is the QDOS a different beast, or is
it just hype? I seem to remember one on ebay, was it a 3D claim?
Well Steve, there are five VS1 70-210 lenses altogether, as far as
I can tell. First, there have been four "regular" VS1 70-210
lenses:
1. The first 70-210/3.5 version, with 67mm filter threads, and with
two obvious "prongs" used to shift into macro mode.
2. The second 70-210/3.5 version, with 62mm filter threads.
3. The first 70-210/2.8-4 version (and third 70-210 version), with
multiple DOF lines fanning out toward the zoom/focus ring.
4. The second 70-210/2.8-4 version (and fourth 70-210 version),
with multiple DOF lines fanning out toward the aperture ring.
But, then, there is also the QDOS version, which appears to be
identical to #4, except for the additional hardware to provide the
QDOS 3D effect to images (which can be enabled and disabled by
sliding a switch on the barrel near the mount, sort of like the
Manual-Auto switch on some of the newer Takumar screwmount lenses.
A side view of the lens -
http://www.cetussoft.com/pentax/vqdos/vqdosside.jpg
A front view of the lens -
http://www.cetussoft.com/pentax/vqdos/vqdosfront.jpg
The slide switch set for normal lens use -
http://www.cetussoft.com/pentax/vqdos/vqdosnormpos.jpg
A view from the rear of lens when set for normal use -
http://www.cetussoft.com/pentax/vqdos/vqdosrearn.jpg
The slide switch set for QDOS use -
http://www.cetussoft.com/pentax/vqdos/vqdosqdospos.jpg
A view from the rear of lens when set for QDOS use -
http://www.cetussoft.com/pentax/vqdos/vqdosrearq.jpg
The two manuals supplied with lens (one of which is just the
"regular" (fourth) VS1 70-210 manual) and the front and back of the
cardboard-framed viewing glasses also supplied (not shown are the
plastic QDOS "sunglasses style" viewing glasses and the plastic QDOS
"clip-on style" viewing glasses also provided) -
http://www.cetussoft.com/pentax/vqdos/vqdospaper.jpg
A photo taken using the QDOS setting (which won't make a whole lot
of sense when viewed without a clear piece of red glass or plastic
in front of your left eye and a clear piece of blue glass or plastic
in front of your right eye) -
http://www.cetussoft.com/pentax/vqdos/vqdos01.jpg
Weird, eh? Just like ol' 3D comic books - <g>.
Fred
--
William Kane
http://www.KaneScience.com
IABT Advisory Board Member
http://www.iabt.net
Tinley Park High School
6111 W. 175th Street
Tinley Park, IL 60477
V: 708/532-1900 ext 3909
http://www.bhsd228.com
