October 24, 2014, 07:35:54 AM

Author Topic: ND filter  (Read 1368 times)

Phenix205

  • Rebel T5i
  • ****
  • Posts: 142
    • View Profile
ND filter
« on: August 16, 2012, 05:51:21 PM »
Hello, all. Looking for an ND filter. I heard that for using fast primes (faster than f1.4) in sunlight, a 3-stop ND is ideal, but for waterfalls and moving clouds, a 9- to 10-stop is better. Any advice on which one to get? Thanks.
5D3 | M | 1v
70-200 II | 24-70 II | 16-35 IS | 100 L | 85L II | 40 | 600EX-RT

canon rumors FORUM

ND filter
« on: August 16, 2012, 05:51:21 PM »

neuroanatomist

  • CR GEEK
  • ********
  • Posts: 14739
    • View Profile
Re: ND filter
« Reply #1 on: August 16, 2012, 05:59:37 PM »
Well...are you planning to shoot outdoor portraits with a fast prime, or waterfalls and clouds?   ;)

Personally, I think 9-10 stops is a bit dark for waterfalls, but good for clouds and 'removing' people from architectural shots.  3-6 stops work well for waterfalls - personally, I often use a 3-stop with a CPL stacked on (meaning ~4.75 stops of darkening).  So, I have both 3-stop and 10-stop filters.
EOS 1D X, EOS M, and lots of lenses
______________________________
Flickr | TDP Profile/Gear List

Random Orbits

  • 1D X
  • *******
  • Posts: 1371
    • View Profile
Re: ND filter
« Reply #2 on: August 16, 2012, 06:22:26 PM »
Depending on the lens focal length, you might be able to get away with a variable ND filter.  At about 24mm, I was getting about 2-3 stops shooting into the sky.  At about 200mm, I can get about 8 stops with the Schneider.

Phenix205

  • Rebel T5i
  • ****
  • Posts: 142
    • View Profile
Re: ND filter
« Reply #3 on: August 16, 2012, 08:09:14 PM »
Thank you neuro. I agree that 9-stop may be too dark for waterfall as water moves pretty fast. All my lenses are f2.8 except the 50 f1.4. Maybe I should start with a 6-stop, then add a 3-stop later as needed?
5D3 | M | 1v
70-200 II | 24-70 II | 16-35 IS | 100 L | 85L II | 40 | 600EX-RT

Razor2012

  • 5D Mark III
  • ******
  • Posts: 639
    • View Profile
Re: ND filter
« Reply #4 on: August 17, 2012, 12:00:01 PM »
I just picked up the Lee filter system with a Big Stopper (10 stops).  You can get 3, 6 and 9 stops also.  This is a great because all you have to do is buy different size adapter rings for your lenses.  I plan on getting some colored grads too.
5D MKIII w grip, 70-200 2.8L IS II, 24-70 2.8L II, 16-35 2.8L II, 100 2.8L IS macro, 600EX-RT

TexPhoto

  • 1D Mark IV
  • ******
  • Posts: 951
    • View Profile
Re: ND filter
« Reply #5 on: August 17, 2012, 01:08:16 PM »
And don't forget, you are usually shooting a waterfall with a small aperture, f11-f22, to maximize depth of field. So the 3 stop is likely plenty. 

canon rumors FORUM

Re: ND filter
« Reply #5 on: August 17, 2012, 01:08:16 PM »