18th November 2002, 10:06 PM
I'm thinking of buying the Kenko 1.4 (or 2X) teleconverter. Before I do that, will appreciate if somebody can tell me if ...
1) The effective aperture will be communicated to the body. The body in question is the Canon EOS33.
2) If it does, will it lose AF if it is more than f/5.6? Or does it hunt like there's no tomorrow?
3) Do I need to compensate for the light loss?
4) Does it work with any lenses? (As opposed to the Canon ones only working with selected L lenses)
5) Does anybody has any sample pics taken with it? Best if the TC is slapped onto some consumer style zooms which is what I have in mind.
19th November 2002, 01:21 PM
19th November 2002, 01:29 PM
Yap, it work with all Canon Lens.
Then again, anything above the f/stop of f/8, the auto focus will keep hunting and not work.
Example: your lens at 400mm is @ f/5.6 and you add a 2X TC which make your Effective aperture +2 Stop to 800mm @ f/11
There's a way to trick the camera fooling it to belive your Effective aperture is still @ f/8 and get the Auto Focus to work, but, that's another story.
It should be the same with Nikon or any other brands.
19th November 2002, 04:29 PM
Sorry if I wasn't too specific about the model, it's the kenko pro 300.
Okie, now assuming I'm at f/5.6 and I slap on a 2X TC, the effective will be f/11. So that means even if I set the physical aperture at f/5.6, the camera will still meter as if it's at f/11? Actually, this's the part that I need to clarify. If no AF then MF loh, no big deal since I don't intend to do sports with that combo. The other concern I have is I'm not sure if the view finder will be bright enough for accurate MF or not The EOS33 is rather dim to start with ....
Anyway, the candidate I have for the combo are all the consumer class x-300. Any first hand experience on how bad the result will be? And thanks for the feedback.
19th November 2002, 04:45 PM
simon teach us the "trick " leh ...