Sigma Bigma mount/collar help - DPChallenge Forums

Panasonic LUMIX DMC-LX100

02/02/2010 02:27:14 PM · #1

I have a D300 and a Sigma Bigma. I've been shooting wildlife using it on my carbon fiber tripod with a ball head. I have the quick release plate on the bottom of the mount thing or tripod collar or whatever its called, its the one that came with the lens, but the mount keep slipping off the lens when I swivel the camera around on the ballhead. I don't really know what to do about it, I like how the camera & lens is connected to the tripod via that collar instead of through the underside of the camrera, but its shaky, unsturdy and slips off too much. Is there a better mount/collar made? or what should I do... thanks

Message edited by author 2010-02-02 14:29:51.

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

02/02/2010 02:40:16 PM · #2

You do have the tripod collar positioned correctly, yes? If you align it a certain way the collar is made to slide off the lens.

spiritualspatula

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

02/02/2010 02:45:07 PM · #3

How does it mount to the ballhead? Sounds like your QR plate isn't designed very well. Are you saying your collar rotates on the plate, or the collar rotates on the lens? What QR plate are you currently using?
I use an arca-swiss style plate made by Acratech, and have had zero problems.
I believe this is what I have.

cpanaioti

Canon EOS-40D

Canon EF 70-300mm f/4.5-5.6 DO IS USM

02/02/2010 03:10:51 PM · #4

Is the collar tightened on the lens?

The collar I have allows me to loosen it so I can spin the camera to vertical or whatever position I want. Once I have it positioned for the shot I re-tighten the collar.

02/02/2010 03:51:50 PM · #5

ok.. it has nothing to do with the QR.

Where the ring tightens around the lens, it comes lose.. I can show you better than tell you since i don't know all the proper terms ;)

The Ring/Collar/Mount thingy-ma-jig

Proper Set up, Ring tight

Ring lose, Camera moves

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

02/02/2010 03:58:10 PM · #6

You're not lined up right. Those silver nubs should be covered by the tripod collar.

Canon RF 24-70mm f/2.8 L IS

02/02/2010 07:53:30 PM · #7

Originally posted by glad2badad:

You're not lined up right. Those silver nubs should be covered by the tripod collar.

The collar won't go over the screws... let me take off the tripod, take it all apart and try again. hmmm :/ thx

kirbic

Canon EOS R5

02/02/2010 08:00:13 PM · #8

Originally posted by aerogurl:

Originally posted by glad2badad:
You're not lined up right. Those silver nubs should be covered by the tripod collar.

The collar won't go over the screws... let me take off the tripod, take it all apart and try again. hmmm :/ thx

The collar will slide over the screws only when the screws are lined up with the slots in the collar. Once the collar is in place, you should be able to tighten the clamp screw so that no movement is possible... or loosen it slightly to allow the lens/camera to be rotated.