FORUMS: list search recent posts

HPX2700 + Canon Lens CAC Issue

COW Forums : Panasonic Cameras

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
David Fu
HPX2700 + Canon Lens CAC Issue
on Apr 28, 2009 at 1:26:15 pm

We have a Canon hj11ex4.7b IRSE lens and a Panasonic HPX2700. The Panasonic website offers a CAC file for the HJ11ex4.7b AISE. The cameras won't accept this file for our lens, but I am trying to research the difference between AISE and IRSE, but everywhere I look I see these two names in tandem with each other, as if there is no difference. Can anyone shed some light to what is going on.


Return to posts index

cowcowcowcowcow
Ethan Sigman
Re: HPX2700 + Canon Lens CAC Issue
on Apr 29, 2009 at 12:33:17 pm

Hello,
I have the 2700 and the canon IASE. the difference is the remote focus servo control that the iase has and the irse does not. the purpose of this control is to allow the lens to be mounted on a jibbed camera, to give the operator control of the focus when the cam is not on his/her shoulder. the irse has remote zoom control only to be used on shoulder/tripod. the cac function wants to know the focus position to make its adjustments to the image and therefore i believe the iase takes this info from the servo position.
Ethan
http://www.EZSProductions.com
http://www.ProductionMeeting.com
http://www.VaricamUser.com

http://www.EZSproductions.com
http://www.productionmeeting.com/profile/EthanSigman


Return to posts index

David Fu
Re: HPX2700 + Canon Lens CAC Issue
on Apr 29, 2009 at 12:39:49 pm

Thanks for the info, Ethan. It seems like it should be easy for the 2700 to take the servo reading from the IRSE lens also. When you turn on your camera with this lens, do you have to go through all the focal ranges and f stops as mentioned on the Panasonic site for this lens and camera combo? Or does it start up saying the CAC file loaded successfully?


Return to posts index


steve phillipps
Re: HPX2700 + Canon Lens CAC Issue
on Sep 3, 2009 at 2:26:45 pm

The CAC compatibility seems to be an odd thing. With the Fujinon lenses there is support generally for the versions with and without servo focus. With one in fact, the HA18x7.6, the BERM version which has no servo focus, is listed, while the BERD version which has servo is not! I'm getting a BERD to try so will see if it does actually work.
Steve


Return to posts index

Erwin Horak
Re: HPX2700 + Canon Lens CAC Issue
on Mar 23, 2010 at 11:34:01 am

Hi David. We do have the same issue here, Pana HPX 3000 and Canon Hj11ex4.7b IRSE. I just want to ask if you found a solution for this. Thanks in advance, greetings from austria, erwin


Return to posts index

Josh Stoner
Re: HPX2700 + Canon Lens CAC Issue
on Nov 16, 2010 at 5:25:27 pm

I am a Canon BCTV Tech.

The reason the IRSE will not work is because there is no signal sent from the lens to the camera when the focus ring is turned. The IASE version not only has a focus motor, but also an encoder that sends the position of the focus ring back to the camera. Without this focus follow signal, the CAC will not work.

Josh
Canon BCTV


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2019 CreativeCOW.net All Rights Reserved
[TOP]