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Archive 2014 · Quick Release Clamp: Lever Release or Screw Knob Release?

  
 
mitesh
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p.2 #1 · Quick Release Clamp: Lever Release or Screw Knob Release?


Longer clamp jaw length is advantageous when you might need to slide the rig back and forth to achieve balance, or if you have something like a long, heavy lens that has a longer lens plate (longer clamp provides more secure hold), or even macro rails that you might want to slide to get a certain positioning.


Jan 10, 2014 at 03:20 PM
Roland W
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p.2 #2 · Quick Release Clamp: Lever Release or Screw Knob Release?


I use the Really Right Stuff lever release clamps for much of my clamping needs, and always have them on my ball heads, where the speed is helpful for me. With the lever release clamp, it is easy to open the clamp all the way open, so that you can drop the camera bracket or lens plate in from the top, and not worry about sliding it in from the end. That part is a factor on speed comparisons, so keep that in mind.

The security issue is not a big one, but the screw clamps are possible to get "tight" and still not have your gear secure, because of clamping down on the plate while it is crooked. It is fairly rare for that to occur, but if it does, damaged gear can result. For the RRS lever release clamps, you feal the clamping action occur via the lever, and it is not really possible to get clamped in a crooked condition.

I also put lever clamps on my Wimberley heads, and really appreciate being able to go on and off of the Wimberley very quickly. For large lenses, either on a ball head or a Wimberley, it is really nice to be able to drop in from the top, and then quickly go to fully clamped. I would never want to slide in a large lens in to a screw clamp.

I go from portrait to landscape and back a lot while working with a ball head, and am so used to the RRS lever clamps that I would not want to go back to a screw clamp. But I do use screw clamps in places where the speed is not important, like on macro rails or special setups.

For the mention above about needing to react against something when you clamp the lever, I just let the reaction go through the thing I am clamping in, which I am holding with my other hand. My right hand is on the camera body grip for all clamping and un clamping operations, to provide security while clamping, and to do the "tug test" after I clamp to make sure I clamped properly. In the case of a lever clamp, you get the same kind of feedback feel from the lever as you do the last stage of clamping, to know if you are clamped, but I still do a tug anyway. I had not thought about it before, but I am also reacting againit the clamp as it is clamped with the lever.

The BH-55 is nicer to operate with the large main knob for clamping the ball. If weight is not an issue for you, it is worth considering, but some would consider it a bit big for a TVC-24 tripod. I use the BH-55 on both of my larger tripods, and only use the BH-40 on my light weight tripod.



Jan 10, 2014 at 04:46 PM
peter_n
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p.2 #3 · Quick Release Clamp: Lever Release or Screw Knob Release?


Rob Tomlin wrote:
So if the B2-40-LR now has the SA feature, what would be the advantage to going with the B2 AS II clamp? I.e., what is the advantage of the longer clamp jaw length?


Rob up in post #13 I pointed out that the B2-40-LR clamp page on the new RRS web site still has the red text that warns you to use only RRS or Wimberley plates. It's just not clear whether the 40mm clamp has this feature yet. That's why I thought you might want to call RRS and sjms in post #20 suggests you take a nice ride to San Luis Obispo and visit RRS.



Jan 10, 2014 at 09:05 PM
Rob Tomlin
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p.2 #4 · Quick Release Clamp: Lever Release or Screw Knob Release?


peter_n wrote:
Rob up in post #13 I pointed out that the B2-40-LR clamp page on the new RRS web site still has the red text that warns you to use only RRS or Wimberley plates. It's just not clear whether the 40mm clamp has this feature yet. That's why I thought you might want to call RRS and sjms in post #20 suggests you take a nice ride to San Luis Obispo and visit RRS.


Yep, I will definitely give the guys at RRS a call before I pull the trigger.

I've been to SLO before, love the area, but it's a 4 hour drive so probably won't be able to make it up there anytime soon.

While reading the RRS website (great site with lots of good info btw), I came across this regarding the B2-LR-II:

" NOTE: Starting in 2012, the Really Right Stuff B2 LR II clamp automatically adjusts to accept all Arca-Swiss style plates except Arca-Swiss P0 Slidefix plates and plates made by Novoflex. Choose a screw-knob clamp if you have Novoflex plates. "



Jan 10, 2014 at 10:32 PM
peter_n
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p.2 #5 · Quick Release Clamp: Lever Release or Screw Knob Release?


^ Yes, but the B2-LR-II is a 60mm wide clamp not a 40mm wide clamp. Up in post #11 I suggested you get a BH-40 with a B2-AR-II clamp which fits RRS and some other ballheads. That's also 60mm wide. Many say that the regular RRS lever clamps can fit most plates, but they do make two lever clamps that are specced to be self-adjusting to any plate. I use both models and they are as described, I use a variety of plates and they connect securely with all of them.

You need to get something that works on the top of the TVC-24L whether it's 40mm wide or 60mm wide. You'll get good advice from the folks at RRS.



Jan 11, 2014 at 09:19 AM
Rob Tomlin
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p.2 #6 · Quick Release Clamp: Lever Release or Screw Knob Release?


Thanks Peter, I have the HB-40 with the B2-AS-II in my cart along with the TVC-24L. Will call before ordering though.

On another note, I assume you guys use L brackets? I've never had an L bracket. Do you leave the L bracket on the camera when shooting handheld? Is it very obtrusive when shooting handheld?



Jan 11, 2014 at 12:16 PM
mitesh
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p.2 #7 · Quick Release Clamp: Lever Release or Screw Knob Release?


I always leave the L bracket on- I can't imagine many people would be mounting and unmounting it. Since it is on the left hand side, and that's usually the hand that's cradling the lens and there are no camera controls on the side of the camera, it really shouldn't be a bother.


Jan 11, 2014 at 12:33 PM
sjms
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p.2 #8 · Quick Release Clamp: Lever Release or Screw Knob Release?


Rob Tomlin wrote:
Thanks Peter, I have the HB-40 with the B2-AS-II in my cart along with the TVC-24L. Will call before ordering though.

On another note, I assume you guys use L brackets? I've never had an L bracket. Do you leave the L bracket on the camera when shooting handheld? Is it very obtrusive when shooting handheld?


after about 5 minutes not at all







Jan 11, 2014 at 12:36 PM
Roland W
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p.2 #9 · Quick Release Clamp: Lever Release or Screw Knob Release?


In most cases, leaving the L bracket on works out fine. My brackets are on except if I know I am hand holding and have no tripod along, or sometimes if I am using a Wimberley with a big lens, and only expect to use the body on that setup. And it really is quick and easy to put the L bracket on and off, as long as you have access to the hex wrench, and those are easy to keep in lots of places.


Jan 12, 2014 at 02:31 AM
jcolwell
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p.2 #10 · Quick Release Clamp: Lever Release or Screw Knob Release?


Roland W wrote:
In most cases, leaving the L bracket on works out fine. My brackets are on except if I know I am hand holding and have no tripod along, or sometimes if I am using a Wimberley with a big lens, and only expect to use the body on that setup. And it really is quick and easy to put the L bracket on and off, as long as you have access to the hex wrench, and those are easy to keep in lots of places.


+1



Jan 12, 2014 at 08:41 AM
peter_n
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p.2 #11 · Quick Release Clamp: Lever Release or Screw Knob Release?


Well I use a Rolleiflex quite a lot so no need for an L-bracket... . When I had a DSLR I kept the L-bracket on all the time and never really noticed it to be honest.




Jan 12, 2014 at 12:36 PM
rprouty
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p.2 #12 · Quick Release Clamp: Lever Release or Screw Knob Release?


My wife and I have two identical set ups. Tripods with quick release clamps and Ballheads and Gimbal Heads with plates so we can switch back and forth in a matter of seconds. They're secure with no movement at all. I personally have no use for screw clamps but to each his own.



http://www.pbase.com/rprouty/image/147675304.jpg
http://www.pbase.com/rprouty/image/147675303.jpg
http://www.pbase.com/rprouty/image/147675302.jpg



Jan 14, 2014 at 06:11 PM
JakeB17
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p.2 #13 · Quick Release Clamp: Lever Release or Screw Knob Release?


Rob Tomlin wrote:
On another note, I assume you guys use L brackets? I've never had an L bracket. Do you leave the L bracket on the camera when shooting handheld? Is it very obtrusive when shooting handheld?


I dislike having it on when shooting handheld. I suppose I'm in the minority on that, but it does get in my way. It's partially because of the straps I use though (blackrapids, and mostly the dr-1 for two bodies). It's especially annoying in fast action environments, shooting with 2-3 bodies on me, with the metal banging against things and making noise on a quiet set.

However, when shooting landscapes, where I'm on a tripod 90% of the time, it doesn't bother me so much. To go from the blackrapid to the tripod though I have 1" kirk mini arca swiss clamps on each L bracket, which the blackrapid screws into. It's not exactly fast to get from one to the other, but it works.



Jan 14, 2014 at 06:40 PM
sjms
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p.2 #14 · Quick Release Clamp: Lever Release or Screw Knob Release?


Your right you have introduced a whole 'nother layer of complexity. And it really has nothing to do with the L bracket


Jan 14, 2014 at 08:48 PM
Rob Tomlin
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p.2 #15 · Quick Release Clamp: Lever Release or Screw Knob Release?


JakeB17 wrote:
I dislike having it on when shooting handheld. I suppose I'm in the minority on that, but it does get in my way. It's partially because of the straps I use though (blackrapids, and mostly the dr-1 for two bodies). It's especially annoying in fast action environments, shooting with 2-3 bodies on me, with the metal banging against things and making noise on a quiet set.

However, when shooting landscapes, where I'm on a tripod 90% of the time, it doesn't bother me so much. To go from the blackrapid to the tripod though I have 1" kirk mini arca
...Show more

That's a great point, I'm glad that you brought it up as I hadn't even given much thought to that.

I use the Black Rapid strap too. Is there not an additional hole that the BR can be screwed into on the L Bracket? I guess even if there was, it would have to be removed in order to mount it on the tripod.

I will have to look into the kirk mini arca swiss clamps.




Jan 14, 2014 at 09:32 PM
sjms
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p.2 #16 · Quick Release Clamp: Lever Release or Screw Knob Release?


simplicity and security







Jan 14, 2014 at 10:57 PM
docsmiles17
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p.2 #17 · Quick Release Clamp: Lever Release or Screw Knob Release?


rprouty wrote:
My wife and I have two identical set ups.

http://www.pbase.com/rprouty/image/147675302.jpg


Do you wear identical set ups also, like this?








Edited on Jan 14, 2014 at 11:38 PM · View previous versions



Jan 14, 2014 at 11:31 PM
docsmiles17
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p.2 #18 · Quick Release Clamp: Lever Release or Screw Knob Release?


rprouty

I am so sorry, I just couldn't resist the opportunity with my prior post.

My apologies if it made you upset.



Jan 14, 2014 at 11:36 PM
rprouty
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p.2 #19 · Quick Release Clamp: Lever Release or Screw Knob Release?


I'm not upset I'm just wondering where you found photos of us


Jan 15, 2014 at 05:32 AM
Jim Servies
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p.2 #20 · Quick Release Clamp: Lever Release or Screw Knob Release?





Jan 15, 2014 at 07:28 AM
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