View Full Version : A shot in the dark - table of illumination


Perrone Ford
October 27th, 2009, 08:12 AM
Ok, I am taking a shot in the dark here and hoping someone can save me some time.

Has anyone made a table of illumination for the 5Dm2 yet? I use this one for my other work:

Table of Exposure for Motion Picture film stock (http://www.panavision.co.nz/main/kbase/reference/tbleExposure.asp)

But because of the 30fps of the 5D, there is just enough of a change, especially at higher stops to keep this unusable. Around T2-T4 it's close enough so I am living with just that one.

Or if anyone has a formula to calculate these if I know a value for certain, I can make my own chart in excel.

Thanks in advance.

Perrone Ford
October 27th, 2009, 05:32 PM
I guess no one had one... so I made one.

Table of Illumination in Footcandles for 30 fps 1/60 shutter

F-Stop 1.4 2 2.8 4 5.6 8 11 16
Exposure Index

64 45 90 180 360 720 1440 2880 5760
100 30 60 120 240 480 960 1920 3840
125 22.5 45 90 180 360 720 1440 2880
160 20 40 80 160 320 640 1280 2560
200 15 30 60 120 240 480 960 1920
250 11.25 22.5 45 90 180 360 720 1440
320 10 20 40 80 160 320 640 1280
400 7.5 15 30 60 120 240 480 960
500 5.625 11.25 22.5 45 90 180 360 720
640 5 10 20 40 80 160 320 640

Louis Maddalena
October 28th, 2009, 01:05 AM
How do you read this?