Kenko pro 300 X2 and EOS3

[ohad_kamhi]

hi

Ill soon be buying

the Canon EOS3 and i wanted to

know if anyone tried the Kenko pro300 X2

and Canon 300 4L lens on this camera

how fast and accurate is AF? does it have

any special problems i should know about?

thanks

ohad

[Former P.N Member]

I can't speak to that specific combination but will pass on my

experience the the EOS3 that I just got a couple days ago.

 

<p>

 

My longest lens is a Sigma 170-500 that is f6.3 at the long end. One

of my concerns when buying the '3' was compatibility with 3rd party

lenses and so far the Sigma works just fine (all my other lenses are

Canon). No problems at all.

 

<p>

 

When testing the various lenses I have with the '3' I also tested

with both 1.4 and 2x TC's to see if autofocus would work up to f8.

It does! The TC's I was using are both Tamron, MC4 1.4 and MC7 2x.

 

<p>

 

The Tamron TC's have no electronics in them so the camera doesn't

know they are there so it thinks the max aperature is 5.6 even with

the 2x attached. Auto focus worked all the way up to 500mm with the

2x. It worked better with distant subjects than with those closer

in, but it did work.

 

<p>

 

Given my experience my guess would be if the Kenko physically fits

the lens the EOS3 should pose no problems.

 

<p>

 

Dick