XL1-S lens: still flawed? at DVinfo.net

Bill Edmunds · August 14th, 2003, 07:05 AM

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.

August 14th, 2003, 07:05 AM	#1
Bill Edmunds Major Player Join Date: Aug 2003 Location: Conway, NH Posts: 574	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?

August 14th, 2003, 07:07 AM	#2
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I think you are referring to focus hunting. To my knowledge this still happens. Problem goes away if you switch to manual focus. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

August 14th, 2003, 01:53 PM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	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. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

August 14th, 2003, 10:49 AM	#3
Bill Edmunds Major Player Join Date: Aug 2003 Location: Conway, NH Posts: 574	<<<-- 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.