Results 1 to 4 of 4

Thread: advice needed on making meter measurements with a fiber optic probe

  1. #1
    Robert A. Zeichner's Avatar
    Join Date
    Feb 1999
    Location
    Southfield, Michigan
    Posts
    1,129

    advice needed on making meter measurements with a fiber optic probe

    I was recently given a Gossen fiber optic probe that fits the LunaPro and similar style Gossen meters. I'm trying to use it to measure the absolute light output of various flat panel displays and am a bit confused on where I set meter sensitivity to arrive a meaningful readings. Has anyone done this using this probe? Does anyone know of a standard I could use to make a reference measurement? My goal is to be able to walk up to a flat panel display, make a measurement of the lightest and darkest areas of an image and document what the screen output is in foot candles or lux (which the Gossen meters will allow me to convert to using the chart on the back of th meter). Any help would be appreciated.

  2. #2
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    6,736

    Re: advice needed on making meter measurements with a fiber optic probe

    Not sure about the Luna Pro, but when the fiber probe is fitted to the Lunasix 3 the table in the manual states that when the needle points to the "1" it is reading 0.045 lux, etc.

  3. #3

    Join Date
    Sep 1998
    Location
    Loganville , GA
    Posts
    14,409

    Re: advice needed on making meter measurements with a fiber optic probe

    Free program. LL-Pro. Measures lux, Kelvin, EV, shutter speed, aperture, etc after you input ISO on your iPhone. Lot faster and easier then using a probe on a CDS meter.

  4. #4
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    22,383

    Re: advice needed on making meter measurements with a fiber optic probe

    Tin Can

Similar Threads

  1. Anyone modifed or used the Sinar Gossen TTL probe for GG measurements?
    By Steven Tribe in forum LF DIY (Do It Yourself)
    Replies: 7
    Last Post: 30-May-2013, 00:52
  2. Fibre optic probe
    By Greg Riutzel in forum Gear
    Replies: 5
    Last Post: 21-May-2002, 04:25
  3. Fiber optic probe
    By Greg Riutzel in forum Style & Technique
    Replies: 3
    Last Post: 17-Mar-2002, 07:09
  4. light meter advice needed please
    By john bartos in forum Style & Technique
    Replies: 8
    Last Post: 7-Dec-1998, 21:39

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •