Focal length conversions

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

October 18th, 2003, 11:35 AM	#17
Charles Papert Wrangler Join Date: Jan 2002 Location: Los Angeles, CA Posts: 6,810	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! __________________ Charles Papert www.charlespapert.com

October 19th, 2003, 07:35 AM	#18
John Jay Major Player Join Date: Sep 2002 Location: US & THEM Posts: 827	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 __________________ John Jay Beware *PLUGGER-BYTES*

October 20th, 2003, 09:27 AM	#19
Mizell Wilson Sales: Reflecmedia Join Date: Jan 2002 Location: Linden, NJ Posts: 147	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 __________________ Posts before Feb 2004 were on behalf of ZGC, afterwards they're all mine!

October 18th, 2003, 08:49 AM	#16
Rob Belics Major Player Join Date: Apr 2003 Location: St. Louis, MO Posts: 581	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.