What can the Canon experts tell me about teleconverters?

[Blue_In_AK]

My maximum lens is the Canon 70-300 telephoto. I discovered this weekend that even at 300 I can't pull up the swans in the middle of the marsh the way I would like to. Would a teleconverter be an option, and if so, what would you recommend?

[F.Gordon]

1. This place has Canon experts?

Will a Canon dunce do for now?
:dunce:

I just recently bought a penile implant. Got the Canon 2x cause' it's weather shielded and designed for "L" crap. However... I was told by the camera guy that there are very good generics on the market that many people say good things about. I haven't done any real world snaps with it yet. Just took a few "test" snaps.

First; say bye-bye to auto focus. Also, when the lens was fully aroused it was gasping for light. Using aperture priority the largest aperture I could dial in was f/11. I think part of this was cause' IS was still on. With small aperture shutter speed was slooooow. I cranked up the ISO and took some hand helds that I was impressed with but this is really a tripod only kinda thing for the most part. But.... I think with a higher ISO you could reach out and touch a few moving/flying critters.

Not sure that was helpful. I know what you mean. Even with the crop 300mm isn't long enough.

Oh, and the camera guy told me that these (the Canon ones) really don't kick in until around 150mm.

In a few weeks I have a few critter snappin' outings planned and I'll hopefully have a few snaparoonis to show you if you want to wait to see. I don't think you'll appreciate snaps of my fence and a few leaves that I have now. :crazy:

:hi:

[Blue_In_AK]

2. Thanks, F.

I was just trying to think if one of thee would be worthwhile. I'm fine with the bigger things, moose and whatnot, but those birds are just too small.

[F.Gordon]

3. Check these out

This photog uses a 1.4x on a tamron. Note the higher ISO used. Need a fast shutter speed to capture those flyin' boids.

http://www.pbase.com/zylen/image/37946318&exif=N

[Blue_In_AK]

4. That's a fabulous shot...

I see he uses a fixed L lens. Would the teleconverter work okay on my 70-300 zoom which ISN'T L? I'm impressed with the clarity in this photo.

[F.Gordon]

5. He is a she

No worries. I made a number of incoherent mix of words and some strange typos last night.

Quite remarkable she is. And yes, she uses the 400 L and 100-400 L. My bad. But to answer your question, from the Canon site....

This extender has been re-designed optically and offers excellent performance with compatible EF lenses (same as the Extender EF 1.4x II). Features a new seven-element design, and same weather-resistant design and anti-reflection internal construction as the new EF 1.4x II. The EF 2x II doubles the focal length of any lens it's mounted to, and reduces its effective aperture by two stops. With the EF 2x II, AF is possible with any EOS body if the lens has an f/2.8 or faster maximum aperture, and compatible Image Stabilization lenses maintain the IS feature when used with any current EOS camera.

The same would apply to the EF 1.4xII. Less money and would give ya' a 420mm reach with your Lens.

She uses the Tamron which is slightly less moolah than the Canon but if you're goin' for the long reach you might want to look at going with a 2.0x. Give ya' a 600mm lens. I've gotten conflicting info. Canon says you lose autofocus with anything over f/4.0. But then "others" say nay-nay to this. I need to test all this crap out and see exactly what is what.
:dunce:

http://www.bhphotovideo.com/bnh/controller/home?O=pagination&A=nextPage&Q=&catId=8468&compareCatId=8468&shs=&ci=8468&ac=&al=&mnp=0.0&mxp=0.0&bl=&sb=bs%2Cupper%28ds%29&sq=asc&fi=all&pn=1