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-   Canon XL1S / XL1 Watchdog (https://www.dvinfo.net/forum/canon-xl1s-xl1-watchdog/)
-   -   XL1-S lens: still flawed? (https://www.dvinfo.net/forum/canon-xl1s-xl1-watchdog/13245-xl1-s-lens-still-flawed.html)

Bill Edmunds August 14th, 2003 07:05 AM

XL1-S lens: still flawed?
 
I thought the lens on the XL1-S had been "fixed" , but I still read posts on forums that say it has a focus drift problem. Is this true? Do most lenses work and some don't?

Rob Lohman August 14th, 2003 07:07 AM

I think you are referring to focus hunting. To my knowledge this
still happens. Problem goes away if you switch to manual focus.

Bill Edmunds August 14th, 2003 10:49 AM

<<<-- Originally posted by Rob Lohman : I think you are referring to focus hunting. To my knowledge this
still happens. Problem goes away if you switch to manual focus. -->>>

I thought there was still some "back focus" issues with the lens or something.

Jeff Donald August 14th, 2003 01:53 PM

The back focus issue was really limited to the original XL1 and was fixed via a firmware update by sending the camera and lens to Canon. However, any camera, prosumer or professional, with interchangeable lenses, can have a problem with back focus. Most pro lenses have a back focus adjustment, the AF lenses with XL mount do not have a back focus adjustment. If the back focus goes out, it's a trip to Canon for a fix. The two manual focus XL mount lenses have a back focus adjustment, like the pro lenses. Why don't the XL AF lenses have a back focus adjustment? Cost. Pro lenses start at what an XL1 outfit costs.


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