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-   -   Focal length conversions (https://www.dvinfo.net/forum/alternative-imaging-methods/15881-focal-length-conversions.html)

Rob Belics October 18th, 2003 08:49 AM

In the early or mid 70s we got the very first portable, handheld color video camera. I don't remember who made it, maybe Panasonic. I think it was a little bigger than a vhs camera and recorded on 1/4" tape.

One of the first things we tried to do was a Blues hockey game at the old Arena. We weren't used to the fast action as they skated by the glass. A lot of it just smeared on screen and the colors were gawd awful.

Charles Papert October 18th, 2003 11:35 AM

The 1/4" format I remember was under the Technicolor name, probably late seventies, early 80's. Didn't last long.

I think we're off subject!

John Jay October 19th, 2003 07:35 AM

CP

I think you are correct

if conversion factor for 36mm stills is 7.2x

then

conversion factor for 22mm movies is 7.2x 22/36 = 4.4x


PS & FWIW
I still have a JVC Saticon kit which I use for special looks, the image is very clean (but dreamy) when recorded direct to DV

Mizell Wilson October 20th, 2003 09:27 AM

Hey guys,

You def gave me a lesson, of which this young pup is grateful for :) but in my own defense, my math was right, if the chips were actually a 1/3" ;)

Charles, if you happen to do get to do some side by side tests we'd be happy to post the results for you.

mizell


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