Digital Video Forum

Digital Video Forum Discuss camcorders, HD video, HD DSLRs, video editing, DV software, and video techniques. Your DV forum moderator is Skyman.
Read and Write Camcorder Reviews >>
Results 1 to 2 of 2

Thread: Video ISO

  1. #1
    Moderator Skyman's Avatar
    Join Date
    Feb 2004
    Location
    Sydney, New South Wales, Australia
    Posts
    1,507

    Video ISO

    Just a pet question of mine, i know video cameras have gain control, but there exposure meters still work in terms of shutter speed and aperture, so is it possible to determie what the iso of a video camera is. i know there are special lightmeters that use an ev reading for video, but nobody has properly explained it for me. i am used to thinking in iso as i started out in still photography. mostly i could read the camera's built in lightmeter but sometimes when i want more control it would be handy to calculate a cameras iso equivalent.

  2. #2
    MJS
    MJS is offline
    Digital Video Moderator
    Join Date
    Apr 2004
    Location
    Miami, FL
    Posts
    1,390

    Re: Video ISO

    My class and I have been running tests on that exact question this past week. We have a sekonic L358 meter that says to set for 100 ISO and 30 f/s to determine either the EV or Fstop. I find that when using a PD150 at 0DB that we are over exposing by 1 stop. The sekonic reads 2.0, the Sony on the scope prefers 4.0. We have standardized on a 200 ISO when metering under hot lights for the PD's. The results look very good on the waveform/vector scope and compare well with exposures taken with a Nikon D70 using the same 1/60, F4 and set at ISO200.

    It may not work for other cameras, but it seems to be a good starting point for the Sony's

    Good luck with the experimentation.
    Michael
    Nikon Samurai #8
    Avid Editor
    Sony Shogun

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. X Software Releases Video Vault - Press Release
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 03-17-2005, 12:01 PM
  2. New Canon ZR and Optura Camcorders - Press Release
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 02-17-2005, 10:21 AM
  3. Kinoma Media Player for Palm Devices - Press Release
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 12-10-2004, 05:11 PM
  4. ISO 200 vs ISO 400
    By Paul in OKC in forum Digital SLRs
    Replies: 2
    Last Post: 11-08-2004, 12:53 PM
  5. EOS 300D vs. D70
    By eric in forum Digital SLRs
    Replies: 17
    Last Post: 11-01-2004, 02:52 PM

Posting Permissions

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