> I suspect that the Canon optics are better, but I've never used a
3rd-party EF converter.
Well, I have a 3rd party 2X converter, so I'm going to tell you a few
things about it :-)
> One advantage of the 3rd party converters is that they can be fitted to
most any lens, such as your 75-300. They do not report correct aperture to
the camera body, so the camera will still *attempt* AF even when the max
aperture is over f/5.6. (* attempt AF does not mean that it will succeed)
On my EF75-300 with the Kenko 2X TC7 I get F8 at the short end only (F11
at the long end). My EOS 10 will autofocus no problem at all like this. So,
a 1.4X converter would autofocus all through the lens's range. I wouldn't
expect it to work in low light, but then again, I'd not likely be using a
converter in these conditions.
> The quest for an inexpensive "600mm" lens is enticing.... but at 600mm,
your lens will have a max aperture of f/11. Autofocus will likely not work,
manual focusing will be difficult, slow shutter speeds will require a sturdy
tripod and the setup will likely result in soft images. There is a reason
why pros will pay $6000+ for a 600mm/f4.0 lens...
Manual focusing is not difficult at all. It's no different than without
the 2X converter. I do notice a very slight softness over the lens itself
which might be a bit soft to start with, however, I'm more than pleased with
the photos I've got with this converter for the 50 bucks I paid for it used.
The reason PROS pay alot of a good telephoto 600mm lens is cause they need
one to make a living from. However, if one's not a PRO, I think a cheap
converter will provide plenty of fun and some great photos to boot. I shoot
without a tripod I might add, but use 800 speed film. No big deal, I usually
use 800 speed in any case. I shoot mostly wide open. With the converter on
my EF 35-135 I can get longer shots without carrying my long lens with me on
short walkabouts in town, etc.
I might add that the 2X has made an excellent macro lens out of my EF
75-300. I can focus near life sized at minimum focus distance.
> I suggest that you purchase a 1.4X converter (a non-Canon brand, as the
Canon 1.4X won't fit either). You will lose only 1 stop (f/8.0 max
aperture) and the quality loss will be much less.
> --
> Dave Herzstein
Well, for me, the 1.4 converters just aren't long enough of a
difference. However, if one has trouble manually focusing the regular lens,
that would be the best bet for auto focus. I know these are just web images,
but if anyone's interested in buying a cheap teleconverter, check out my
Kenko teleconverter test on my webpage under 'phototests'.
Email: [EMAIL PROTECTED]
Webpage:http://www.kjsl.com/~jbdavis/
'Every footstep must be true.' Bruce Cockburn
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
