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Thread started 10 May 2014 (Saturday) 14:50
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Lee filter questions

 
Alveric
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May 14, 2014 19:40 |  #16
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I haven't used Heliopan, but I know of at least one professional photographer of renown who favours it. They're made in Germany, like B+W, and based on their price tag I would expect them to be top notch. Can't see you going wrong with them. They even have a polariser that has only one stop light loss. I'd recommend you to get a Kässeman-type polariser, especially if you'll be shooting in sub zero temperatures.


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neilgcart
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May 15, 2014 11:47 |  #17

The Lee 105 cpl is quite deep so you will get a significant amount of vignetting with ultra wides. The best filter to use is the Heliopan as this offers the slimmest option you can get and thus minimises any vignetting. I can use a Lee filter holder with two slots and the cpl adapter ring on the front at 16mm full frame and get no vignetting using a Heliopan.

Neil




  
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May 20, 2014 07:30 |  #18

I'm about to order a Heliopan "High transmission" circular polarizer with a slim mount. With the Lee holder I'll be ordering a Lee "wide" adapter ring for my 82mm diameter lens, so that should take care of vignetting as far as what I can do about it. The circular polarizer will be attached to the front of the Lee holder with a Lee 105mm accessory polarizer ring.

This weekend I decided to try out my (barely used) Cokin P holder with a 0.6ND filter and a polarizer and see what I could do with waterfalls and mountains. I now understand why you all don't recommend attaching the filter holder to the front of the polarizer, because it makes it really fiddly to rotate the polarizer. A real pain!
As for the ND filter I experimented with a tripod and different apertures in order to get different shutter speeds. It all looks so simple, but different shutter speeds give widely different results and moods, so this sort of thing likely takes a lot of practice to get a "perfect" waterfall shot. Are your experiencs the same?


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Alveric
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May 20, 2014 12:50 |  #19
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Yes, patience is a prime requirement.


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NullMind
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May 21, 2014 10:28 |  #20

Question on this topic

I see lee has a round 105mm circular polariser and a square one that can be used directly with no adapter ring

there is a difference of £100 between them, since I can rotate the holder itself, is there a reason to pay more for the 105mm round one ?

Leet says the square one "This version is recommended for studio use, or when no filters are required in addition to the Polariser."

But why is that ? we already carrying the big stopper, etc


NullMind
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neilgcart
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May 21, 2014 10:56 |  #21

NullMind wrote in post #16919851 (external link)
Question on this topic

I see lee has a round 105mm circular polariser and a square one that can be used directly with no adapter ring

there is a difference of £100 between them, since I can rotate the holder itself, is there a reason to pay more for the 105mm round one ?

Leet says the square one "This version is recommended for studio use, or when no filters are required in addition to the Polariser."

But why is that ? we already carrying the big stopper, etc

If you need to use a ND grad with the polarizer then you can only rotate a square polarzer using two filter holders joined together. This will not work with a wide angle lens as you will get vignetting.

I would not buy a Lee 105mm round ploarizer as it is quite deep so again you will get some vignetting if the intended use is with an ultra wide lens. You need to buy a slim polarizer in this case. The Heliopan is about as slim as you can get if you wish to minimise the risk of vignetting.

So what you require really depends on what your intended use is. Most purchasers of Lee filters are probably going to use these filters for Landscape photography or simular where it is reasonable to assume you will want to use them with a reasonably wide angle lens. If you are not in this category you may have other options but if this describes your intended use you really need to be considering a slim round 105mm CPL and the Lee wide angle adapter.

Neil




  
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NullMind
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May 21, 2014 13:43 |  #22

Hi Neil

That's does describe my scenario, but I don't intend to use ND grad, just the big stopper and the new little stopper ... Would the square polariser one fit fine ?


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May 21, 2014 16:00 |  #23

I just use the square polarizer in conjunction with the grads and big stopper in the holder. You just rotate it 90 degrees to see whether it's working at that angle before slotting it in the holder. Due to the way they work, I haven't missed a screw type CPL since I got the Lee.


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NullMind
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May 21, 2014 17:34 |  #24

What's the difference between the circular vc linear polarizer ?


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Jon
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May 21, 2014 18:14 |  #25

NullMind wrote in post #16920865 (external link)
What's the difference between the circular vc linear polarizer ?

Functionally, with any of Canon's DSLRs you need the circular polarizer, not the linear one. In this usage, it describes how the light comes out of the filter. Light passing through a linear polarizer and reaching a second linear polarizer (a half-silvered mirror, like your camera uses to deflect some light to the AF sensors, is one example of this) can, at certain angles of rotation, be completely blocked by the second linear polarizer. Light passing through a circular polarizer before hitting the linear polarizer, on the other hand, will be passed through since the CPL, while it only passes the filtered light, "depolarizes" it, so the linear polarizer can pass at least some through regardless of orientation.


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Mike ­ K
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May 21, 2014 19:17 |  #26

The Lee square polarizers seem to work fairly well for those users who actually have one. Here is a older thread on this issue
https://photography-on-the.net …ight=lee+square​+polarizer


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Lee filter questions
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