Fujinon ENG Focus Gear Pitch at DVinfo.net
DV Info Net

Go Back   DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

JVC GY-HD Series Camera Systems
GY-HD 100 & 200 series ProHD HDV camcorders & decks.

Reply
 
Thread Tools Search this Thread
Old November 5th, 2006, 10:49 AM   #1
Major Player
 
Join Date: Dec 2005
Location: Burnaby & Maple Ridge BC
Posts: 289
Fujinon ENG Focus Gear Pitch

Hi folks. Does anyone know what the focus gear pitch is for the stock Fujinon lens on the HD100?

It's supposed to be the standard for all Fujinon ENG lenses. I tried doing a Google search but kept getting articles about their cine-style lenses, which have a Module 0.8 pitch and "most video lenses also have a different gear pitch than film-style lenses". Trouble is, I can't find out what the ENG pitch is. Couldn't find it in the lens manual either.
__________________
Earl R. Thurston, Stargate Connections Inc.
Made with GY-HD100: The Container Adventures: The Rescue
Earl Thurston is offline   Reply With Quote
Old November 5th, 2006, 12:04 PM   #2
Wrangler
 
Join Date: Oct 2002
Location: Los Angeles, CA
Posts: 2,100
Usually, when referring to gear pitches when it comes to lens accessories, they're all just referred to as "film pitch", or "video pitch".

The people who are usually experts on this are jib and steadicam operators, who always have to make sure they have what it takes to get remote focus working on any camera given to them.

Anyway, after 15 years, I've never heard one of them refer to the actual numerical pitch, even when purchasing the parts!

Of course somebody will reply in a minute with the actual numbers, making me sound silly.
__________________
My Work: nateweaver.net
Nate Weaver is offline   Reply With Quote
Old November 5th, 2006, 01:35 PM   #3
Inner Circle
 
Join Date: Feb 2006
Location: Belfast, UK
Posts: 6,143
Just to confuse even further, Canon & Fujinon ENG lenses have different pitches.

Checking on the Preston Cinema Systems web site gave me these figures:

0.50M gear Canon Video
0.60M gear Fuji Video - Focus, Zoom
0.40M gear Fuji Video - Iris

My Steadicam's follow focus gears just say "F" & "C" and as Nate says I don't worry about the actual pitch number. It would be more of a problem if I was going to ask a machinist who doesn't work in the industry to make up a gear,
Brian Drysdale is offline   Reply With Quote
Old November 5th, 2006, 06:58 PM   #4
Major Player
 
Join Date: Dec 2005
Location: Burnaby & Maple Ridge BC
Posts: 289
Quote:
Originally Posted by Brian Drysdale
0.60M gear Fuji Video - Focus, Zoom
Thanks guys, that's exactly what I was looking for.

I'm a bit of a tinkerer, so was thinking of creating my own servo-remote for this. None of the gears I have fit, so this will help a lot.

But I know what you guys mean about the vernacular. I'd be hopeless as a grip because I don't know all the lingo, even though I understand the underlying concepts.
__________________
Earl R. Thurston, Stargate Connections Inc.
Made with GY-HD100: The Container Adventures: The Rescue
Earl Thurston is offline   Reply With Quote
Old November 5th, 2006, 08:01 PM   #5
Wrangler
 
Join Date: Jan 2002
Location: Los Angeles, CA
Posts: 6,810
Yeah, I wouldn't have come up with the numbers myself, but I'm definitely familar with them. Although the headscratcher is the two different pitches for Fuji lenses--could swear that I use the same gear on all three. Hmm...

Regarding the "film pitch", while most modern PL lenses use the standard 32 pitch gear for focus, iris and zoom when applicable, some will use 48 for the iris; and Panavision's standard is 32 for focus, 48 for zoom and 64 for iris. Confused yet? How about the fact that the depth of the gear is slightly different between PL and Panavision spec, so while a standard 32 pitch gear will work on both, allegedly the correct gear will work more quietly on the appropriate manufacturer's lenses...

oy vey!

Can we also talk about the fact that while both Fuji and Canon are using the same multi-pin Hirose connector on their lenses (for zoom and run controls), the pin configuration is different between the two??!! Considering that back in the day Fuji was using a different connector and they switched to Canon's connector, you would think they would have made them compatible. Then again, that would be too easy.
__________________
Charles Papert
www.charlespapert.com
Charles Papert is offline   Reply With Quote
Old November 7th, 2006, 09:53 PM   #6
Major Player
 
Join Date: Mar 2005
Posts: 423
"Can we also talk about the fact that while both Fuji and Canon are using the same multi-pin Hirose connector on their lenses (for zoom and run controls), the pin configuration is different between the two??!!"

Thankfully the JVC HZ-ZS13U Zoom controller supports both Canon and Fujinon with a simple switch position...

Just picked one up on eBay for $307
http://cgi.ebay.com.au/ws/eBayISAPI....m=160045088514
Guy Barwood is offline   Reply With Quote
Old November 7th, 2006, 10:00 PM   #7
Wrangler
 
Join Date: Jan 2002
Location: Los Angeles, CA
Posts: 6,810
Smart--thanks for that note.
__________________
Charles Papert
www.charlespapert.com
Charles Papert is offline   Reply With Quote
Old November 7th, 2006, 10:01 PM   #8
Wrangler
 
Join Date: Jan 2002
Location: Los Angeles, CA
Posts: 6,810
Oh, and oddly enough I had to mount an iris motor on a Fuji lens today--I was able to use the Panavision 64 pitch iris motor; it may not be 100% the same gear depth etc. but it works fine.
__________________
Charles Papert
www.charlespapert.com
Charles Papert is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 04:40 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network