iso of dvx

[Warren Foster]

So I am wondering what the iso of the dvx is?
I am assuming all the models is the same. I know it really doesn't matter but coming from film it would be nice to know.

 

[Gary]

I understand it to be 800 at 60i and 400 in progressive.

 

[Warren Foster]

The sensitivity of the sensor changes? I find that hard to believe.

 

[HorseFilms]

The sensitivity of the sensor changes? I find that hard to believe.

It's the nature of 60i vs 24p. You're going to lose light in the progressive mode because you're not getting as many samples per second.

 

[Warren Foster]

It's the nature of 60i vs 24p. You're going to lose light in the progressive mode because you're not getting as many samples per second.

You mean progressive can have a lower potential shutter speed or the iso changes?

Thanks for the information.

 

[Barry_Green]

Interlace scanning takes advantage of row-pair summation and results in a 6dB increase in sensitivity, and a corresponding reduction in noise (because the noise is averaged out between the two samples).

So yes, the DVX is twice as sensitive in 60i (1280 ISO using NORM gamma) than it is in progressive (640 ISO using NORM gamma).

 

[Warren Foster]

Interlace scanning takes advantage of row-pair summation and results in a 6dB increase in sensitivity, and a corresponding reduction in noise (because the noise is averaged out between the two samples).

So yes, the DVX is twice as sensitive in 60i (1280 ISO using NORM gamma) than it is in progressive (640 ISO using NORM gamma).

There we go. Thank you.