Pentax *ist-D Tripod Screw?

On Sun, 15 Jul 2007 23:14:16 -0500, "Randy Berbaum"
wrote:


"dj_nme" wrote in message
...
grwsmith wrote:

Hello, Can anyone tell me please what the tripod screw type is please.
I have a tripod with a shoe fitting but the screw is missing. Thanks,
Guy.


I have an ist-DS and the QR plate from my tripod at hand.
The thread in the tripod socket on the Pentas ist-DS is like most cameras
today, a 1/4" BSW.

I don't know where the other posters on this thread got their info, but
it's quite surprising the range and bizarre ideas some of them have come
up with.

The other responses are a problem of different methods of describing the
same thing and partly a desire to differ on any subject. You mention a 1/4"
BSW (which has 20 threads per inch) screw. This is correct. Also a 1/4-20
screw was mentioned. This is also correct. If you go to a hardware store a
1/4" diameter screw with 20 threads per inch is a 1/4-20 screw. One joker
then had to disagree by mentioning a 2/8th inch screw with 80 threads per
4". 2/8" is the same thing as 1/4". 20 threads per inch is the same thing as
80 threads per 4". So all the responses are the same thing.

Now with tripod mount screws there are two standard threads in common use. A
1/4" screw (which is a 1/4-20 screw that is about 1/4" long) and a 3/8"
screw (which is 3/8-20 I believe and also 1/4" long). So when the OP asked
what screw the Pentax camera uses, the answer can be "a 1/4" screw" or "a
1/4-20 screw" and be correct. In either case you are indicating that it is
not a 3/8" tripod screw.

Randy

It can't be a "1/4" screw", because that says nothing about the
diameter or thread pitch.
It might be a 1/4-20 x 1/4", though. Or even a 1/4" 1/4-20.
Go into a hardware store, and ask for a 1/4" screw, and be prepared to
be asked what type of 1/4" screw you want.

--
THIS IS A SIG LINE; NOT TO BE TAKEN SERIOUSLY!

Al Gore's son was pulled over by police on the
San Diego Freeway Tuesday with marijuana, Valium,
Xanax and Vicodin on him. The kid never had a
chance. He got hooked on downers at an early
age listening to his father read him bedtime
stories.

Bill Funk wrote:
snip for brevity
It can't be a "1/4" screw", because that says nothing about the
diameter or thread pitch.

Also, you might get a 1/4" wood screw.
Not much good for attaching a camera to a tripod at all.

It might be a 1/4-20 x 1/4", though. Or even a 1/4" 1/4-20.
Go into a hardware store, and ask for a 1/4" screw, and be prepared to
be asked what type of 1/4" screw you want.

The safest thing to ask for is a 1/4" BSW (or UNC, the difference is
minimal for a tripod mount hole) machine screw or bolt.
A machine screw is a better idea (either slot, phillips or posidrive
head), as you can use an ordinary screwdriver to fasten it instead of a
spanner that's required for a bolt (which have a hexagonal head).