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Old Feb 26, 2016, 9:15 AM   #1
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Default Square Filters - what brands do you use?

I'm looking to get some square filters of the type used by the Lee system for an ultrawide lens I have that doesn't support screw in style filters.

Primarily I'm interested in a big stopper type ND3.0 / 10 stop darkening filter and a soft gradient as well at some point.

I started a similar discussion in the general area but only have one response so I figured that it might be better to ask in the landscape section where the use of filters is more common.
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Old Feb 26, 2016, 8:00 PM   #2
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Quote:
Originally Posted by ramcewan View Post
I'm looking to get some square filters of the type used by the Lee system for an ultrawide lens I have that doesn't support screw in style filters.

Primarily I'm interested in a big stopper type ND3.0 / 10 stop darkening filter and a soft gradient as well at some point.

I started a similar discussion in the general area but only have one response so I figured that it might be better to ask in the landscape section where the use of filters is more common.
I don't know exactly what it is you're asking, but I use Hitech GNDs with holders because I want access to every hard-edge, soft-edge, reversed, blender, color and gradient that is available at a moments notice. Not every brand has that. I use resin so I don't have to babysit the glass.

The filter brands are interchangeable, but the procedure used has more to do with the holder itself. If you have light leaks with a holder, you can have some serious problems with NDs and GNDs regardless of the brand.

In the mountains, valleys and forests of the Northeast US, I don't know if I've ever had a reason to go ten stops. That could be minutes.

FWIW, I'd have no use for an outdoor lens that didn't have threads for a CPL. The holder, GND and NDs are way down on my list by comparison. I might use them steady for a couple weeks and not touch them again for a year. A CPL I can use every day.
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Old Feb 28, 2016, 11:15 AM   #3
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I don't know exactly what it is you're asking, but I use Hitech GNDs with holders because I want access to every hard-edge, soft-edge, reversed, blender, color and gradient that is available at a moments notice. Not every brand has that. I use resin so I don't have to babysit the glass.

The filter brands are interchangeable, but the procedure used has more to do with the holder itself. If you have light leaks with a holder, you can have some serious problems with NDs and GNDs regardless of the brand.

In the mountains, valleys and forests of the Northeast US, I don't know if I've ever had a reason to go ten stops. That could be minutes.

FWIW, I'd have no use for an outdoor lens that didn't have threads for a CPL. The holder, GND and NDs are way down on my list by comparison. I might use them steady for a couple weeks and not touch them again for a year. A CPL I can use every day.

Thanks Bob, do you find any degradation of sharpness for the resin over glass? Also you mention the brands being interchangeable, do you mean Lee and Cokin or are there other brands you've used? I'm particularly interested in experiences with Zomei

I am primarily interested in the ND for water/seascapes to blur the movement of the water.

I recently bought the Olympus 7-14mm f2.8 PRO and it doesn't support screw in filters but is otherwise in a class of it's own in terms of IQ, speed and build quality.
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Old Feb 28, 2016, 11:47 AM   #4
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I use Cokin Filters which seem to work well.

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Old Feb 28, 2016, 2:52 PM   #5
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Thanks Bob, do you find any degradation of sharpness for the resin over glass? Also you mention the brands being interchangeable, do you mean Lee and Cokin or are there other brands you've used? I'm particularly interested in experiences with Zomei

I am primarily interested in the ND for water/seascapes to blur the movement of the water.

I recently bought the Olympus 7-14mm f2.8 PRO and it doesn't support screw in filters but is otherwise in a class of it's own in terms of IQ, speed and build quality.
My slide-in GNDs and Blenders are resin. My NDs are screw-in glass. Back to back, I can't even tell if I used a filter.

Based on the dimensions, the filters are interchangeable with a given holder.

Depending on how you stack NDs, GNDs and CPL, the holder will make a difference. The holder will dictate the size and configuration.
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Old Mar 11, 2016, 2:40 AM   #6
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I use Lee filters and just purchased a Haida ND3.0 (Shott glass). A lot of filters have a color cast and may be corrected, to some degree, in post processing. The Haida has a slight blue cast. Check this out,

http://www.imaging-resource.com/news...ampaign=buffer
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