In theory: what is the ISO of the HVX?

Cuantos the Wrestler

Cuantos the Wrestler

Active member
Regarding a light meter situation, what would the HVX default ISO equivalency be? And can it be changed?

Forgive me, my film/pixel world has collided. :huh:

We are doing some light tests with a Dualmaster L-558, and we got to wondering if this is even an issue we can deal with.

Thanks in advance!

Cuantos the Wrestler
 
dusterdoo,

Nope, no book yet. I still have to register my camera with Panny and then send off for it.

.................

Thanks John.

Is 320 set, or is that adjustable within the menu?
 
Cuantos the Wrestler said:
Regarding a light meter situation, what would the HVX default ISO equivalency be? And can it be changed?

Forgive me, my film/pixel world has collided. :huh:
Click to expand...
It can be changed in a simplistic fashion by adding gain. The analogy to film is obvious: low sensitivity film = fine grain, high sensitivity = coarse grain. In video terms, you can trade off noise in the picture for sensitivity.

Be wary about ISO figures quoted for video cameras. In the pro world, they take care to specify sensitivity for a given set of parameters - S/N ratio etc. Unfortunately in the pro/consumer world, things are not normally so precise.

In practice, what this means is that whilst camera A may work at a smaller stop than camera B for a given scene, it may be yielding a signal with a higher S/N ratio. You may find that when gain is added to both, camera B can have more dB added for an equivalent picture, and the underlying sensitivity of both is the same. (Although camera A may initially have appearded more sensitive.)
 
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