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P3D CLARIFICATION OF RBT MACRO
- From: Jon Golden <3dman@xxxxxxxxxxx>
- Subject: P3D CLARIFICATION OF RBT MACRO
- Date: Wed, 02 Sep 1998 10:05:35 -0500
This is a clarification of some unclear statements Dave Kesner made
regarding the RBT MACRO attachment.
>>>From all the recent postings on calculating stereo base for macro
shots I must assume that the only way to effectively do macro stereo
is with a variable base camera (ie SLR and slide bar). Otherwise you
would be restricted to a very small range with a fixed stereo base.
IF YOU WANT TO DO INFINITELY VARIABLE STATIC MACRO STEREO....AND YOU
HAVE A MOVING SUBJECT...THEN A SINGLE SLR WILL NOT DO THE TRICK. IF YOU
ONLY SHOOT STATIC SUBJECTS OON A TABLE TOP...OR IN A CONTROLLED
ENVIRONMENT....AND SLR AND SLIDE BAR SETUP IS AN EXCELLENT ROUTE TO GO.
IF YOU ARE OUT IN THE WOODS, ON THE BEACH....ON A HILL.....OR IN AN AREA
WHERE SETTING UP A TRIPOD WITH A SLIDE BAR IS AWKWARD....WELL JUST ABOUT
EVERY SHOT IS GOING TO BE A MAJOR PROJECT TO SET UP.....EVEN ANIMALS
THAT DONT MOVE MUCH....IF THEY BREATHE...OR MOVE IN THE SLIGHTEST SINGLE
SLR WILL NOT WORK.
2)
>>Well I just paid over $2,000.00 for an RBT macro attachment that has
fixed lens spacing at 6mm and 11mm. I bought it so I could take all
manner of macro stereo shots at all near/far subject-to-camera
distances. Now I find I can't do it!
DAVE MAYBE YOU DID NOT READ THE RBT MACRO SPECIFICATIONS CAREFULLY. YOU
CANT DO "ALL" WITH ANY STEREO CAMERA...NO SUCH ANIMAL...IF THERE
WAS...WE WOULD ALL HAVE ONE CAMERA FOR EVERYTHING. HERE IS WHAT THE RBT
MACRO WILL DO.
THE RBT MACRO IS Full frame 24mm x 36mm capability, INFINITELY
adjustable focus area between near 1 to 1 ratio (24mm x 36mm) - far
(85mm x 130mm), selectable 11mm or 6mm stereo base, f32 Meopta 105mm
optics, stereo viewfinder. THAT IS A VERY FLEXIBLE "RANGE"
FOR CLOSE UP WORK.
3)
>>Beacause of that I will be selling the RBT to the first person to
offer me $100.00 plus shipping. See my add in sell-3d and reply to
the email address there. This address will not work. *{;-)
WELL FOR 100.00 I GUESS JUST ABOUT ANYONE WOULD WANT THAT BUT REMIND
THEM THAT THEY WILL NEED AN RBT 65MM BASE CAMERA ONLY TO ADAPT IT TO.
TECNICALLY DAVE....IT SHULD GO TO THE NEXT PERSON IN CUE ORDERING ONE,
OF WHICH THERE ARE SEVERAL ALREADY....BUT THAT IS BETWEEN YOU AN I.
REGAR-D-D-D-S
Jon G
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