Tripod Ring w/ Ef 70-200 f/4L Question

I have a nice tripod, grip'd XTi + 70-200. Should I get a tripod ring for use like this or on my monopod?

I want to make sure I am 'safe' and take care of my new baby

If you do, get one off of ebay, no sense in paying 100+ for a canon one

paiintballa182 wrote in post #5930256
If you do, get one off of ebay, no sense in paying 100+ for a canon one

Link?

I have the 70-200 f/4L Non-IS

I can only seem to find Canon versions in Black or White.

I just bought a Roxsen one off of eBay - supposedly one of the best. However, on the 70-200 f/4L IS while it holds it firmly (there is no play) I can't tighten it down enough so that it won't turn in the mount. My other Canon lenses that have collars don't work this way. I'm thinking about the Canon collars presuming that they don't turn like this.

My advice on the ebay collars is, "Not so fast...."

J

No need for a tripod collar for support. The only reason you might want to consider a collar is the ease with which you can rotate to portrait orientation.

No real 'need' but it is better and will yield sharper images than cantilevering the whole out on the plate on the camera body.

J.

JohnJ80 wrote in post #5932326
I just bought a Roxsen one off of eBay - supposedly one of the best. However, on the 70-200 f/4L IS while it holds it firmly (there is no play) I can't tighten it down enough so that it won't turn in the mount. My other Canon lenses that have collars don't work this way. I'm thinking about the Canon collars presuming that they don't turn like this.

My advice on the ebay collars is, "Not so fast...."

J

Now thats a shame. I just bought one Roxsen on ebay for $40 this week. Yours may be deffective.

JohnJ80 wrote in post #5932361
No real 'need' but it is better and will yield sharper images than cantilevering the whole out on the plate on the camera body.

J.

So it is 'better' on the tripod ring than the bottom of the camera?

dinanm3atl wrote in post #5932718
So it is 'better' on the tripod ring than the bottom of the camera?

Yes.

On the camera, you have the whole mass cantilevered out unsupported. Think of holding the very end of a ruler on a table and twanging it. Same mechanism only you are trying to dampen 50um (50 millionth of a meter of vibration).

The other issue is that on a tripod, it is then a very asymmetric sail in even the slightest breeze. With the color, you have it as more symmetric around the collar - also limiting torsional vibration induced by air movement.

With the collar it is much more balanced.

J.

gdl357 wrote in post #5932656
Now thats a shame. I just bought one Roxsen on ebay for $40 this week. Yours may be deffective.

So, when you tighten it down, it doesn't turn at all?

J.

Better order one then

JohnJ80 wrote in post #5932893
So, when you tighten it down, it doesn't turn at all?

J.

I have a Roxen for my 70-200 f/4L and when tightened it will not budge

I don't see any on ebay labeled as 'roxen'.

Link anyone?

dinanm3atl wrote in post #5933474
I don't see any on ebay labeled as 'roxen'.

Link anyone?

Roxsen, not roxen. Sorry I misspelled. In any event, there aren't any things being offered by Roxsen, but there are a number of alternatives on eBay. Just be sure to NOT buy one with a knurled surfaced knob, but one with a ribbed knob. There are a few vendors offering these, including this one...

http://cgi.ebay.com …7&_trksid=p3286​.m14.l1318

I got one for my f/4 IS off a HK ebay dealer and couldn't be happier. Thankfully this particular third party accessory ended up well (can't say the same for my third party hood experiences). The collar definitely balances the weight on a tri/monopod much better than from the bottom of the camera, so it was a pretty good buy for me.