I've heard a few people mention that you can tape a couple of pins on a teleconvertor which allows you to retain AF on lenses which wouldn't usually let you.
Which pins are taped and will it work with a sigma 2X teleconverter?
Full Version: Taping pins
QUOTE (mahleu @ Nov 9 2006, 02:36 PM)
I've heard a few people mention that you can tape a couple of pins on a teleconvertor which allows you to retain AF on lenses which wouldn't usually let you.
Which pins are taped and will it work with a sigma 2X teleconverter?
Which pins are taped and will it work with a sigma 2X teleconverter?
http://www.fencecheck.com/forums/index.php...;prev_next=prev
first post has a picture. don't know about sigma, but effectiveness will vary - ie in low light you may hunt forever without ever establishing a lock, particularly at 2x.
QUOTE (Tim Gray @ Nov 9 2006, 08:51 PM)
http://www.fencecheck.com/forums/index.php...;prev_next=prev
first post has a picture. don't know about sigma, but effectiveness will vary - ie in low light you may hunt forever without ever establishing a lock, particularly at 2x.
first post has a picture. don't know about sigma, but effectiveness will vary - ie in low light you may hunt forever without ever establishing a lock, particularly at 2x.
well at the moment it hunts forever and never focusses. With an F4 70-210mm it sometimes focusses, will have a play with the pins
taping the 3 pins on the lens works on my 100-400 with 1.4x, but does not work on the 300 f4 with 2x (20D)
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