----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, February 25, 2001 8:03 AM
Subject: Re: EOS EF 20-35 with extension tubes
> In a message dated 2/25/01 1:29:06 AM Eastern Standard Time,
[EMAIL PROTECTED]
> writes:
>
> << The "standard" set of three Kenko tubes (12,20 & 36mm) do not support
> autofocus. >>
> HI,
> this is not correct, they do support AF - I have this set and it works
with
> AF just fine.
> As far as using them with the 20-35 - not sure if it's a good idea - I
just
> tried that with my 20-35L and Kenko 12mm ext tube and my dog - all you get
in
> the frame is a tip of the nose - to get it in focus. I'd say you should go
> for a super wide lens like 14mm or a fisheye - 15mm. As far as Kenko set -
> works just as well as Canon, at least on older bodies - 1n, Elan, RT. with
> lenses like 50mm or 100mm. Or even 80-200L or 300L - to get closer min
> distance.
> George
>
My assumption was based on their ads, in the Adorama ad it says:
Auto Extension Tube Set for AF SLR's
Consists of 36, 20 & 12mm Ext. Tubes, Available for Maxxum, EOS, Pentax AF
(manual focusing).
But when I went to Kenko's web site, I found:
KENKO AUTO EXTENSION TUBE SET contains three tubes of different length which
can be combined in seven ways to obtain various magnification. Perfect
coupling with TTL metering and AE mechanisms. Full auto focusing with
Canon-EOS, Minolta-AF and Nikon-AF. Tube set for Minolta Xi is compatible
with power zoom.
I had written off the set because of the lack of autofocus, thanks for
pointing out I was wrong, they're back on my "buy" list again!
Tom P.
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