Tripod mounting question

Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

"Steve Carpenter" wrote in message
...
Many pan/tilt heads and quick release mounts have a sprung pin an inch or
so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Many cameras/lens/scopes have holes for that 'sprung pin'. It keeps them
straight on the mount.

Ron

"Ron Recer" wrote in message ...
"Steve Carpenter" wrote in message ...

Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Many cameras/lens/scopes have holes for that 'sprung pin'. It keeps them straight on the mount.

Ron

Many video cameras have these - and the pins on the tripod
heads or plates can generally be easily removed.
--
David Ruether

http://www.donferrario.com/ruether

OK, thanks folks.

Steve

"David Ruether" wrote in message
...


"Ron Recer" wrote in message
...
"Steve Carpenter" wrote in message
...

Many pan/tilt heads and quick release mounts have a sprung pin an inch
or so
from the mounting screw. I've yet to see a camera base with a mating
hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Many cameras/lens/scopes have holes for that 'sprung pin'. It keeps
them straight on the mount.

Ron

Many video cameras have these - and the pins on the tripod
heads or plates can generally be easily removed.
--
David Ruether

http://www.donferrario.com/ruether

On Jul 8, 4:54 pm, "Steve Carpenter" wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Lots of cameras have them ... but they are all video cameras.

Most better heads have the ability to unscrew the pin and remove it.

Steve Carpenter wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve


Some quick release heads have this sprung pin as a safety measure. The
pin will catch onto the edge of the QR plate and keep it from falling
out if the release is inadvertantly loosened but not to the extent of
intentinally removing. The plate hast to be machined to take advantage
of that pin to provide the safety measure.

Quoting from Acratech's web page:

"At Acratech we have developed a spring-loaded detent pin that projects
into the pockets or windows that are cut into the bottom of most
manufactures (Acratech, Kirk, Really Right Stuff, etc.) quick release
plates. Our detent pin will prevent the plate from accidentally sliding
out in the event that the knob is partially loosened."


JD

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On Jul 8, 1:54 pm, "Steve Carpenter" wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Plesase

Steve Carpenter wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an
inch or so from the mounting screw. I've yet to see a camera base
with a mating hole, so what is the pin for (apart from scratching the
paint off my camera)? Maybe it's just a pro camera thing?

Rather a video camera thing

jue

Pat wrote:
On Jul 8, 4:54 pm, "Steve Carpenter" wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve

Lots of cameras have them ... but they are all video cameras.

THe lens cradle for my Sony DSC-R1, which is not a video camera, has a
hole which mates with the pin in one of my quick release mounts. It
clearly serves to stop a camera with a long heavy lens from twisting
around an insufficiently tightened tripod thread.

--
Chris Malcolm DoD #205
IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK
[http://www.dai.ed.ac.uk/homes/cam/]

On Jul 11, 4:59 am, Chris Malcolm wrote:
Pat wrote:
On Jul 8, 4:54 pm, "Steve Carpenter" wrote:
Many pan/tilt heads and quick release mounts have a sprung pin an inch or so
from the mounting screw. I've yet to see a camera base with a mating hole,
so what is the pin for (apart from scratching the paint off my camera)?
Maybe it's just a pro camera thing?

Steve
Lots of cameras have them ... but they are all video cameras.

THe lens cradle for my Sony DSC-R1, which is not a video camera, has a
hole which mates with the pin in one of my quick release mounts. It
clearly serves to stop a camera with a long heavy lens from twisting
around an insufficiently tightened tripod thread.

No it clearly doesn't for three clear reasons. First, one clearly
knows that if you are using a long, heavy lens then you put the tripod
on the lens, not the camera. Second, if you are using a heavy rig,
clearly you go to a stronger system with a larger screw. Thirdly, if
you didn't tighten the darned thing up, then you lens would be moving
and clearly your picture wouldn't be clear. It doesn't take much
movement with a big lens.

The purpose of the pin is to keep the camera from unscrewing when you
are panning back and forth.