Who knows 30D/BG-E2 thread diameter?

Nikolai · August 5, 2006

I want to get a universal QR plate, but I have no idea which one to get:
1/4-20
or
3/8-16
I want to get one until I get enough funds for the L-plate...
Thanks!

System · August 5, 2006

I'm using the Manfrotto 3157N plates on both my body and the BG-E2 as well as the collar for my 70-200 with no issues.

Nikolai · August 5, 2006

Reading is hard

truth wrote:

I'm using the Manfrotto 3157N plates on both my body and the BG-E2 as well as the collar for my 70-200 with no issues.

Question is: what is the tripod mount thread diameter for 30D an BG-E2?

Blurmore · August 7, 2006

The tripod socket on a 30D is 1/4 in 20 I'm pretty sure....3/8 is a really big bolt.

Nikolai · August 7, 2006

Thanks!

Blurmore wrote:

The tripod socket on a 30D is 1/4 in 20 I'm pretty sure....3/8 is a really big bolt.

Yeah, guy at acratech confirmed that, too:-)

Oh well, orders have been sent, now we wait...

I ordered MagFiber NGE2 from Amazon ($375, shipped free, no taxes), and Ultimate Ballhead V2 ($329) and P20 wimberley plate ($52) from Acephoto - it was cheaper to get stuff shipped from East Coast than to pay CA taxes...

ian408 · August 7, 2006

Nikolai wrote:

I want to get a universal QR plate, but I have no idea which one to get:
1/4-20
or
3/8-16
I want to get one until I get enough funds for the L-plate...
Thanks!

Nik, the 3/8-16 is probably not what you want. It's used on some lens
feet (like the 500mm Canon which has both 1/40-20 and 3/8-16).
More than likely what you want is 1/4-20 for your camera body.

If you need it, there are adapters from 3/8-16 to 1/4-20 as well.

Cheers,
ian

for your tripod

Nikolai · August 8, 2006

Thanks, Ian!

ian408 wrote:

Nik, the 3/8-16 is probably not what you want. It's used on some lens feet (like the 500mm Canon which has both 1/40-20 and 3/8-16).
More than likely what you want is 1/4-20 for your camera body.

If you need it, there are adapters from 3/8-16 to 1/4-20 as well.

Cheers,
ian

for your tripod

Appreciate the info and cheer!

pathfinder · August 8, 2006

Like Blurmore said, most 35mm cameras have a 1/4 by 20 female socket on the bottom.

Some very large lenses and cameras have 3/8 sockets. The Canon 500mm f4 for example has sockets for 3/8 and 1/4 by 20 on its lens foot. I suspect some larger Medium format cameras sport a 3/8th female socket as well.

Many tripod heads offer both male threads - I use 3/8ths to mate my tripod to my RRS ball head for instance.

Nikolai · August 8, 2006

Thanks, Jim!

pathfinder wrote:

Like Blurmore said, most 35mm cameras have a 1/4 by 20 female socket on the bottom.

Some very large lenses and cameras have 3/8 sockets. The Canon 500mm f4 for example has sockets for 3/8 and 1/4 by 20 on its lens foot. I suspect some larger Medium format cameras sport a 3/8th female socket as well.

Many tripod heads offer both male threads - I use 3/8ths to mate my tripod to my RRS ball head for instance.

I guess I don't have to worry about 3/8 at all for a foreseeable future

Cheers!

photobug · August 9, 2006

Yep, it's 1/4", 20 tpi
Nikolai,

I have a 20D with BG-E2. It's definitely, definitely a 1/4-inch diameter, 20 threads per inch (1/4", 20 tpi) tripod mount in both the 20D and the BG-E2. So you're going to be fine.

= Dave

p.s. It strikes me as odd that all these cameras are made in metric-system countries (esp Japan), yet we have English-threaded tripod mounts?? Would I be correct in assuming that the actual threading is a metric size which (by design) works out to be very, very close to 1/4", 20 tpi?

Nikolai · August 9, 2006

Thanks, Dave!

photobug wrote:

Nikolai,
p.s. It strikes me as odd that all these cameras are made in metric-system countries (esp Japan), yet we have English-threaded tripod mounts?? Would I be correct in assuming that the actual threading is a metric size which (by design) works out to be very, very close to 1/4", 20 tpi?

From what I remember, metric and non-metric threads almost never can be compatible. Different angles, or something..
I think the reason is that photography hardware was originated when English-threads were everywhere, and being a niche industry, they simply didn't have enough compelling reasons to switch to metric.
Another example would be plumbing in Russia. It's a huge country, as you know, metric system is everywhere. Except plumbing (and photography:-)

Who knows 30D/BG-E2 thread diameter?

Comments