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Thread started 03 Jun 2010 (Thursday) 19:41
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LEE "Square" Circular Polarising Filter

 
robonrome
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Jun 03, 2010 19:41 |  #1

I was wondering if I got this and the filter holder upgrade kit with Tandem adpator ring I could then rotate the polariser independent of 1 or more mounted NDGrads?

Would seem to be a cheaper option that buying the round 105mm Lee Circular polariser and it's adaptor ring?


rob - check my galleries at http://hardlightimages​.zenfolio.com/ (external link)
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argyle
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Jun 04, 2010 09:58 |  #2

There may be an easier and cheaper method without having to invest in a tandem holder (which would also create some vignetting issues). From what I understand, adjusting the square polarizer is just simply a matter of removing the filter from the holder, turning it 90 degrees one way or the other, and then re-inserting it back into the holder. Julian (jdizzle) uses this filter and if I recall this is how he makes the adjustment. Maybe he'll see the thread and offer his two cents, or you can shoot him a PM.


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jdizzle
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Jun 04, 2010 14:43 |  #3

Hi Rob. I do own this filter and Argyle's explanation for use of this filter is spot on. I love the filter and it's given me great results for my images. Let me know if you need any help. :)

Here's a pic of the filter.

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http://i206.photobucke​t.com …/delarosaIII/IM​G_4675.jpg (external link)


Here's a shot using that filter in combination with a 3 stop reverse GND.
IMAGE: http://DLImaging.zenfolio.com/img/s10/v16/p349268115-4.jpg



  
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robonrome
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Jun 04, 2010 16:38 |  #4

Thanks argyle, and Julian you've sold me, that image is simply stunning!


rob - check my galleries at http://hardlightimages​.zenfolio.com/ (external link)
Zenfolio coupon discount when signing up - 93R-NCK-DUT
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FlyingPhotog
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Jun 04, 2010 16:40 |  #5

Someday, the ground is going to split open under Julian and the Devil will collect!

<You my friend, Rock!>


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jdizzle
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Jun 04, 2010 22:32 |  #6

robonrome wrote in post #10303996 (external link)
Thanks argyle, and Julian you've sold me, that image is simply stunning!

Your welcome Rob. And thanks! :)

FlyingPhotog wrote in post #10304008 (external link)
Someday, the ground is going to split open under Julian and the Devil will collect!

<You my friend, Rock!>

Hehe! Thanks Jay. :)




  
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rvdw98
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Jun 05, 2010 08:06 |  #7

jdizzle wrote in post #10303293 (external link)
QUOTED IMAGE

I must have seen this picture a dozen times by now, and only now did I notice a few things:

  • You relocated the filter slots so that the brass bolt is positioned to the right/left side of the holder (or perhaps your holder came preconfigured like that). I've always found it to be a nuisance for that thingy to be "in the path of the filters" so to speak and all that time, the solution was staring me straight in the face. :o
  • When your holder is mounted, the bolt appears to be fully released. Mine still sticks out a bit and is only fully released when I remove the holder from the adapter ring (does that make sense?). I wonder why this is and assume that the resulting tension on the bolt is also the reason why it takes considerable force/effort to rotate my holder around the adapter ring.

Roy

  
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2005GLI
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Jun 05, 2010 12:36 |  #8

may i ask what this filter cost?


|Canon 80D|40D backup|24-105 F4/L|Sigma 70-200 F/2.8|Sigma 150-500 C|
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Poe
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Jun 05, 2010 13:11 |  #9

robonrome wrote in post #10298468 (external link)
I was wondering if I got this and the filter holder upgrade kit with Tandem adpator ring I could then rotate the polariser independent of 1 or more mounted NDGrads?

Would seem to be a cheaper option that buying the round 105mm Lee Circular polariser and it's adaptor ring?

argyle wrote in post #10301556 (external link)
There may be an easier and cheaper method without having to invest in a tandem holder (which would also create some vignetting issues). From what I understand, adjusting the square polarizer is just simply a matter of removing the filter from the holder, turning it 90 degrees one way or the other, and then re-inserting it back into the holder. Julian (jdizzle) uses this filter and if I recall this is how he makes the adjustment. Maybe he'll see the thread and offer his two cents, or you can shoot him a PM.

It seems to me that the OP wants to be able to rotate the polarizer in smaller increments than 90 degrees. It doesn't seem that this can be done with the square shaped filter and would need a holder that can be freely rotated while the GND stays fixed, or a circular filter that can be rotated with the confines of this current filter holder.



Nikon D750 | Nikon-Nikkor 14-24G, 60G Micro | SIGMA 35A, 105 OS, 24-105 OS | ZEISS Apo-Distagon 1.4/55 Otus, Makro-Planar 2/100, Apo-Sonnar 2/135

  
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mike_d
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Jun 05, 2010 13:45 |  #10

Poe wrote in post #10307734 (external link)
It seems to me that the OP wants to be able to rotate the polarizer in smaller increments than 90 degrees. It doesn't seem that this can be done with the square shaped filter and would need a holder that can be freely rotated while the GND stays fixed, or a circular filter that can be rotated with the confines of this current filter holder.

Depending on how wide you need to go, a round CPL attached between the lens and the Lee holder could work. I've had a B+W CPL for a while and just got a Lee holder. I threaded the Lee holder into the B+W's front thread on my 17-40 on the 5D. At 17mm, the corners were black. At 21mm, there was some vignetting. At 24mm, it looked fine.




  
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jdizzle
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Jun 05, 2010 14:39 |  #11

rvdw98 wrote in post #10306687 (external link)
I must have seen this picture a dozen times by now, and only now did I notice a few things:
  • You relocated the filter slots so that the brass bolt is positioned to the right/left side of the holder (or perhaps your holder came preconfigured like that). I've always found it to be a nuisance for that thingy to be "in the path of the filters" so to speak and all that time, the solution was staring me straight in the face. :o
  • When your holder is mounted, the bolt appears to be fully released. Mine still sticks out a bit and is only fully released when I remove the holder from the adapter ring (does that make sense?). I wonder why this is and assume that the resulting tension on the bolt is also the reason why it takes considerable force/effort to rotate my holder around the adapter ring.

I did relocate my filter slots but, I didn't modify anything on the actual holder itself. :) As for the bolt, I haven't had issues with mine. You can also order this bolt from B&H or from your local Lee dealer.

http://www.bhphotovide​o.com …ing_Clip_Housin​g_for.html (external link)




  
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robonrome
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Jun 05, 2010 16:44 |  #12

Poe wrote in post #10307734 (external link)
It seems to me that the OP wants to be able to rotate the polarizer in smaller increments than 90 degrees. It doesn't seem that this can be done with the square shaped filter and would need a holder that can be freely rotated while the GND stays fixed, or a circular filter that can be rotated with the confines of this current filter holder.

That was my original intention, but once the idea was put there, I could manage with 90-deg increments for the $ saved I think:D


rob - check my galleries at http://hardlightimages​.zenfolio.com/ (external link)
Zenfolio coupon discount when signing up - 93R-NCK-DUT
_______________
Canon 5D Mkiii; Sony RX100; Lumix G5; 17-40L; 24L TS-E F3.5 Mk2; 24-105L IS; 40 F2.8; 135L; 70-200L F2.8 IS MkII; Ext II 1.4x; 580 exII; 270 ex... other filtery stuff:)

  
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rvdw98
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Jun 05, 2010 17:34 |  #13

jdizzle wrote in post #10308065 (external link)
I did relocate my filter slots but, I didn't modify anything on the actual holder itself. :)

Isn't that a contradiction in terms? ;)

jdizzle wrote in post #10308065 (external link)
As for the bolt, I haven't had issues with mine. You can also order this bolt from B&H or from your local Lee dealer.

After posting this, I was futzing around with my holder a bit and decided to remove the bolt for no particular reason. :D When I put it on the adapter ring (unsecured so to speak) I noticed the same friction while rotating. One half of a full 360 degree rotation goes smoothly, the other half takes a lot of force. And with the bolt removed, that can only be caused by the holder and/or the ring not being perfectly circular.

So I flipped the ring around front to back and tried rotating it again, and that didn't cause any friction whatsoever. Also, while I can drop the ring into the holder in one orientation, when I rotate it 180 degrees, I have to force it in. That means that the holder is probably okay, but the inside of the adapter ring (where the bolt and the two holder tabs slot into) must be slightly warped.

The bad thing about that is that I have already exchanged the holder a while back for the very same issue, only then it was so bad that I could actually see it being slightly oblong, which the dealer confirmed upon receiving my holder. And now I may have to return the ring as well...

Not too impressed with Lee's QC right now... :cry:


Roy

  
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rvdw98
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Jun 05, 2010 17:38 |  #14

2005GLI wrote in post #10307619 (external link)
may i ask what this filter cost?

http://www.bhphotovide​o.com …ular_Polarizer_​Glass.html (external link)


Roy

  
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jdizzle
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Jun 05, 2010 19:24 |  #15

rvdw98 wrote in post #10308830 (external link)
Isn't that a contradiction in terms? ;)


After posting this, I was futzing around with my holder a bit and decided to remove the bolt for no particular reason. :D When I put it on the adapter ring (unsecured so to speak) I noticed the same friction while rotating. One half of a full 360 degree rotation goes smoothly, the other half takes a lot of force. And with the bolt removed, that can only be caused by the holder and/or the ring not being perfectly circular.

So I flipped the ring around front to back and tried rotating it again, and that didn't cause any friction whatsoever. Also, while I can drop the ring into the holder in one orientation, when I rotate it 180 degrees, I have to force it in. That means that the holder is probably okay, but the inside of the adapter ring (where the bolt and the two holder tabs slot into) must be slightly warped.

The bad thing about that is that I have already exchanged the holder a while back for the very same issue, only then it was so bad that I could actually see it being slightly oblong, which the dealer confirmed upon receiving my holder. And now I may have to return the ring as well...

Not too impressed with Lee's QC right now... :cry:

Yeah but, I wouldn't called that modifying the holder. If I used a hacksaw to do it, then yes. ;) I'm sorry you're having issues with your filter holder. I have had no issues with rotation on the adapter ring with both of my filter holders. You are one of the few here on this forum that has that issue. I guess Lee does have some issues with QC. :confused:




  
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LEE "Square" Circular Polarising Filter
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