Can you help me? HVX-200 mysteries

filmtovideo

filmtovideo

Well-known member
I asked this yesterday as part of a thread because i didn't know how to start
a new thread and now I can't find that one, so if you answered thank you and
sorry for asking again. I may change my handle to the inept one.

With the HVX-200:
1. Why are the ND options 1/64 and 1/8, not .3, .6, .9 etc. like with
gels and filters I've attached to cameras?

2. In the two cine-gamma settings, what does it mean to affect dynamic
range and to affect contrast?

3. When I zoomed all the way in using an HVX-200 it seemed to me to be
equal to about 60 mm. focal length (in 35 mm.). Not very much. Am I
missing something?

4. When you use manual iris, if you're not connected to a waveform monitor,
how do you meter/ measure/determine aperture setting?

THANKS!
 
Can't speak to your other questions, other than that the zoom seems a lot more powerful to me than that. But for exposure, you can use the zebra settings to give you a pretty good idea of your levels...I usually use the 100% zebra setting, find the point where the zebra lines appear and then iris down until they just barely go away.

Joe Murray
 
the 1/8 is supposed to mean 1/8th the light, and the 1/64 means 1/64th the light... so it works out to 3 1/2 stops on the 1/8th and 8 stops down on the 1/64
 
In order to have a good exposure without a waveform, you can use the marker option (press the zebra button 3 times), which works very similar to a waveform. You can use a gray card in order to have more control.
 
1.The opacity vs optical density is indeed confusing. Opacity figures (like 1/8...) are more relevant for ND filters in video/photo applications, number of stops would be even easier. Gels, and ND filters in general because they are somtimes combined, use the logaritmic density expression, because densities can be simply summed up.
2.Depending on your DR definition it may change DR but shurely cine gamma changes the tonal range.
3. Comparing horizontal or vertical angles?
4. Zebra stripes at least tell you how some highlights are handled...sometimes you want them saturated because the content is not importent and you prefer the darker areas to be visible...somtomes if you want a dark scene you better do not turm up until you get somewhere the zebra stripes appearing. So you still need some feeling, or a good calibrated monitor
 
vertical vs. horizontal?

vertical vs. horizontal?

Hi,

First of all, thanks to everybody for replying. I really appreciate you're taking the time
to help me.

It seems to me that the HVX-200 doesn't have that long a focal length in
telephoto (didn't even zoom in as close as the DV-30 I had right next to it-
both close-ups of someone's face.) I don't understand the horizontal/vertical
angle distinction Andre made. Can you explain? I got the 60mm comparison
to 35mm image/lens by general comparison and specifically by dividing
433mm (Given by Panasonic) by 7.2 (the conversion number given to me
by a knowledgeable vendor.) 433mm is extreme telephoto-for shooting
birds in their nests or something; there's no way the HVX-200 lens is
equal to 433mm in 35mm. (I think.)

Thanks!

filmtovideo
 
If the aspect ratio with photo and video is the same you can compare equivalent focal lengths in terms of "what do I get" in my picture. If AR differs the vertical image content (and apparent zoonfactor) will differs from the horizontal one.
 
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