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  4. Why GND filters square vs circular?

Why GND filters square vs circular?


7 years 11 months ago #482673 by Conner
With square GND, you are forced to get a bracket.  So we are talking more cost.  

Why not circular GND filters? 
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7 years 11 months ago #482676 by Shadowfixer1

Conner wrote: With square GND, you are forced to get a bracket.  So we are talking more cost.  

Why not circular GND filters? 

If you are really asking about GND's and not just an ND then the answer is obvious. You can't slide the graduation to where you want it or need it with a circular and keep the composition you want. ND is a different story and I prefer circular for non graduated filters.
www.betterphoto.com/?ramshots
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7 years 11 months ago #482678 by Conner
But why not have one that spins, and you level the graduated line on the horizon?  Kind of like the free spinning outside band on a polarized filter.  You know what I mean?
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7 years 11 months ago #482733 by effron
That's fine if you want the horizon for instance, right in the center. The square ones you can put the effect where you want.  I actually prefer the square (or rectangle) filters, as once I lock focus I don't want to "screw" a filter on to the lens. With some like a big stopper, you can't focus once filter is on in lower light shots. I've also seen many shooters that hand hold grads for many landscape captures, so you're not "forced" to buy a holder. In my opinion the holder (Lee) was worth every penny I paid.....
Why so serious?
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7 years 11 months ago - 7 years 11 months ago #482737 by Shadowfixer1

Conner wrote: But why not have one that spins, and you level the graduated line on the horizon?  Kind of like the free spinning outside band on a polarized filter.  You know what I mean?

RE*read what I wrote and think about it. Say you have a nice foreground and middle ground that you want to expose for that takes up the bottom 2/3's of the image. The bright sky takes up 1/3. How would you move the graduation line with a circular so that it only covers the sky? You can't. You can spin it till it falls apart but the graduation line won't get higher in the frame so all you can do is recompose to a scene that you really didn't want. Rectangular filter can be adjusted up and down to the horizon line or more correctly, the brightest part of the scene and maintain your preferred composition. One more thing. Most people just hold the filter in front of the lens and don't use a holder.
www.betterphoto.com/?ramshots
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7 years 11 months ago #482803 by Prago
+1
SWM into chainsaws and hockey masks seeks like-minded SWF. No weirdos, please
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7 years 10 months ago #482892 by Andrew AG
Shadow fixer got this one on the dot.  A circular GND would work for some situations based on how described earlier, however there are to many other situations where it wouldn't work. 
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