Panasonic AG-DVX 100BE somebody knows the ISO?

Keeping in mind that video is NOT film, and that the advice given to you here has been accurate and important for you to understand, if you are just looking for a quick and easy way to shoot and the perfection of you footage is not as important as just having the answer, here is a link from some people who did some bench testing for you, most likely using the methods outlined above. Took about 5 seconds to find it. The Google search window is your friend...

http://www.dvxuser.com/V6/archive/index.php/t-7345.html

you will find using a meter more trouble than its worth:

the only folks that use them for video are lighting directors for top end costume drama for broadcast, and thats more to do with lighting ratios than exposure control, exposure is set by the video engineer using a waveform.

when using a meter the speed will change with every lighting condition; daylight shade, daylight sun, fluorecent, tungsten etc etc

you will have to meter a scene and then calculate for illumination range, effective speed and lighting conditions.

far easier to line up the viewfinder with colour bars and then set exposure with the image using a zebra pattern set appropriatly.

for accuracy buy a portable waveform monitor, perhaps too costly for you but the only real way.

to find the effective speed of the camera: record a few different scenes and meter each one, transfer the aperture setting used on the lens and then on the meter read off the corresponding speed setting, average the 5 readings for a final rating.

ISO ratings do not apply to video; it is a measurement of film speed (sensitivity to light of a film's emulsion). Through some thorough experimentation on your part, you may be able to ROUGHLY determine the AG-DVX100's equivalent sensitivity ... but that would only be a rough guide. You'd need to expose film stock known to have an accurate ISO rating and compare the recorded exposure of the video camera to the recorded exposure settings of the film camera. You'd need to record the exposure information for each scene test for both the film camera and the video camera until you find consistent results. The film would have to be developed with strict standards in order to NOT have development variables influence the results - probably not worth the time and effort as it would still be only a rough guide.

You should get more reliable results using the video camera's zebra pattern to determine proper exposure.

-DH

-DH

I agree, you won't have an accurate reading using a photographic meter, its the wrong tool. The only professional tool to measure exposure from a video camera is with a waveform monitor.


here is an example of a hand held waveform monitor:

http://www.hamlet.co.uk/products/9000/MicroFlex/main_i.htm

From the EBU specifications for PAL, the unit of measurment of picture luminence is the Volt, and you use a waveform monitor to measure it.

1 volt is peak white and 0.3 volts is black.



http://www.tek.com/Measurement/AppNotes/25_7075/eng/25W_70753.pdf

did you even click on the link I posted? it's there... some people just don't want to be helped...