Luminous Landscape Home
Luminous Landscape Forum > Equipment & Techniques > For Sale > fs B+W 120 Filter 77mm
Pages: [1]   Go Down

Author Topic: fs B+W 120 Filter 77mm  (Read 694 times)

Ziggy

  • Newbie
  • *
  • Offline Offline
  • Posts: 23
fs B+W 120 Filter 77mm
« on: August 14, 2013, 10:45:59 am »
Selling my B+W 120 Filter, it's a 20 Stop ND filter, 77mm size.  Just looked over by Schneider Optics, few small scratches, but they said it looks good. 

Film shooters only, doesn't work with Digital.  hence why I am selling it.

$200 includes shipping OBO
Logged

Neil Folberg

  • Full Member
  • ***
  • Offline Offline
  • Posts: 162
    • http://www.visiongallery.com
Re: fs B+W 120 Filter 77mm
« Reply #1 on: August 14, 2013, 04:01:21 pm »
Why would this only be for film? I don't understand.
Logged

Ziggy

  • Newbie
  • *
  • Offline Offline
  • Posts: 23
Re: fs B+W 120 Filter 77mm
« Reply #2 on: August 14, 2013, 05:36:23 pm »
it doesn't work with a digital camera.  And before you ask me why.  I don't know, but I sent it to Schneider Optics and they don't know why it doesn't work with digital, but it doesn't.  Works as normal with Film
Logged

Sheldon N

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 828
Re: fs B+W 120 Filter 77mm
« Reply #3 on: August 15, 2013, 01:46:01 pm »
Quote from: Neil Folberg on August 14, 2013, 04:01:21 pm
Why would this only be for film? I don't understand.

20 stops is crazy dark. The light level is probably just too low for a digital sensor to effectively register, even with a long exposure.

For example, sunny f/16 at ISO 100 translates into a roughly 2 hour exposure in broad daylight/direct sun.
Logged
Sheldon Nalos
[url=http://www.flickr.com
Pages: [1]   Go Up
Luminous Landscape Forum > Equipment & Techniques > For Sale > fs B+W 120 Filter 77mm