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Thread started 31 Dec 2011 (Saturday) 06:25
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School me on Acra Swiss style lens plates

 
Hoosier ­ Writer
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Dec 31, 2011 06:25 |  #1

I am trying to figure out what Acra-Swiss style plates I need for two of my lenses. I have studied some of the offerings for sale by Wimberley and Kirk and noted the lengths of the recommended plates for each lens. I also see Kirk sells their "generic" plates on eBay for about half the price of their "custom" plates. If the lengths are almost identical, why spend double for the custom plates? Am I missing something here?
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M635_Guy
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Dec 31, 2011 07:40 |  #2

What lenses are we talking about?

My guess is the feet might have spacing/overhang or other needs that dictate a specific plate. The generic will probably physically work, but...


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RandyS
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Dec 31, 2011 08:58 |  #3

Sometimes, it's how they position the screw hole(s). A generic plate may have a slot in it for moving the screw to match your lens base, where one made for that base may simply have a hole in the proper location.

I'm not at all sure that's enough of a reason to pay a lot more for your plate, but along with length it could be one of the differences.




  
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yourdoinitwrong
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Dec 31, 2011 09:09 as a reply to  @ RandyS's post |  #4

This is not a direct answer to your question but something else to keep in mind when buying plates is the clamp that they will be used with. The Arca Swiss style plates are not all the exact same dimensions. For example, RRS recommends using only their plates or Wimberley plates because the dovetail on them is slightly thicker than other brands of plates. Just thought I would throw that out there since I came across that a little while ago when switching from Manfrotto products.


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Hoosier ­ Writer
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Dec 31, 2011 09:46 as a reply to  @ yourdoinitwrong's post |  #5

I have a Sigma 150-500 5-6.3 and a Tamron 70-200 2.8 that I am getting plates for.




  
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ben_r_
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Dec 31, 2011 10:35 |  #6

I'd be willing the bet the Really Right Still L84 lens plate would work fine on the tripod ring mounts of either of those lenses.


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Hoosier ­ Writer
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Jan 04, 2012 20:14 as a reply to  @ ben_r_'s post |  #7

I am still thinking about this too much... Why would a recommended lens plate be 6.5 inches when the lens ring pad is only 3.5 inches long?




  
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ben_r_
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Jan 04, 2012 20:23 |  #8

6.5 inches?! What lens plate are you looking at that is that long?!


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klr.b
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Jan 04, 2012 22:56 |  #9

Hoosier Writer wrote in post #13648085 (external link)
I am still thinking about this too much... Why would a recommended lens plate be 6.5 inches when the lens ring pad is only 3.5 inches long?

You might get a longer plate for better balance. A 1Dm4 is a bit heavier than say a Rebel film body. It's nice to be able to slide the plate in the clamp for better balance, especially in a gimbal. Another thing is it can double as a nodal slide if you're shooting panos.


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Hoosier ­ Writer
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Jan 05, 2012 04:53 |  #10

ben_r_ wrote in post #13648123 (external link)
6.5 inches?! What lens plate are you looking at that is that long?!

All the plate makers, Wimberley, RRS, and Kirk recommend lens plates about 6 inches long for the Sigma 150-500. They also recommend a lens plate about 3 inches long for the Tamron 70-200. Like KLR B said, I assume it is so I can slide the lens/camera back and forth until I find the balance point but since I don't have them in hand, I'm just guessing.




  
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ben_r_
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Jan 05, 2012 11:56 |  #11

Hoosier Writer wrote in post #13649851 (external link)
All the plate makers, Wimberley, RRS, and Kirk recommend lens plates about 6 inches long for the Sigma 150-500. They also recommend a lens plate about 3 inches long for the Tamron 70-200. Like KLR B said, I assume it is so I can slide the lens/camera back and forth until I find the balance point but since I don't have them in hand, I'm just guessing.

Huh.... Wait, how long is the foot on the tripod mount for that lens?

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Looks like maybe 4 inches?

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Hoosier ­ Writer
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Jan 05, 2012 18:06 |  #12

ben_r_ wrote in post #13651588 (external link)
Huh.... Wait, how long is the foot on the tripod mount for that lens? Looks like maybe 4 inches?

Yes, the entire foot is 4" long with one screw hole. Wimberley recommends their P-50 which is a hair over 6.5" long and has three screws. From my novice perspective I would think a 4" lens plate would be long enough.:confused:
Which makes me wonder what I'm not seeing or thinking of. Perhaps the extra length is to add on flash brackets or??? something.




  
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Hoosier ­ Writer
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Jan 05, 2012 18:25 as a reply to  @ Hoosier Writer's post |  #13

Well, about two seconds after my last post I found a video on lens plates. I think the reason for the extra length is just what klr.b suggested. The extra length can be used to balance the camera and lens on a gimbal head to find the "sweet spot".




  
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ender78
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Jan 05, 2012 19:09 |  #14

Take a look at the Benro plates - PU-150 should do the trick.




  
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hollis_f
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Jan 06, 2012 04:04 |  #15

Hoosier Writer wrote in post #13653661 (external link)
Well, about two seconds after my last post I found a video on lens plates. I think the reason for the extra length is just what klr.b suggested. The extra length can be used to balance the camera and lens on a gimbal head to find the "sweet spot".

Yes, it's essential, even on a prime lens that doesn't change length. Getting the setup balanced is essential if you're going to be using a gimbal head (and if you're sticking one of these long lenses on a tripod you really need to be using a gimbal).


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School me on Acra Swiss style lens plates
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