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Canon XL and GL Series DV Camcorders
Canon XL2 / XL1S / XL1 and GL2 / XM2 / GL1 / XM1.

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Old January 9th, 2010, 01:32 AM   #1
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16x manual lens

Guys, I've just purchased a second hand 16x Manual lens. The Back Focus is shot, not surprising it's changed bodies. Problem is, it didn't come with an operators manual and I don't know how to adjust it. I can't find any info on the net to help me. Can any one point me to an online manual or give me instructions on how to tune it.

Thanks, Al
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Old January 9th, 2010, 06:19 AM   #2
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The Canon 16x Manual Servo Zoom Lens for the XL1 / XL1S by Ken Tanaka

It is quite a simple operation to adjust the back-focus crew. It is a great MF lens!

1) Mount the camcorder on a tripod. Select an object 2-3 m away from the
lens, or an object about the same distance away from the lens as your
Use a subject with high contrast so it will be easy to tell when focus is
2) Turn the IRIS/SELECT Dial to open the aperture.
3) Zoom all the way in to full telephoto.
4) Turn the focusing ring and focus on the object.
5) Zoom all the way out to full wide angle.
6) Fully release the flange back fixing screw on the lens (counterclockwise) .
7) Turn the flange back ring until you obtain correct focus.
The approximate position is where the flange back adjustment indicator
is aligned with “F.B”.
8) Repeat steps 3) to 7) until you obtain the correct focus on both ends.
9) Tighten the flange back fixing screw with the ring set in proper position

I hope this helps. :)
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