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Tamron 200-500MM F/5-6.3 Di LD (IF)

Review Date: Apr 12, 2005 Recommend? yes | Price paid: Not Indicated | Rating: 9 

Pros: Size, weight, reach, quality, lens hood
Filter size, AF speed a little slow, MF ring rotates during AF

First impressions: Well built, easy to hold, very nice carry bag.

In use - image quality really impresses at all focal lengths, especially when stopped down to F8.

It is light enough to hand hold for flight shots but I prefer to use a tripod for stationary subjects.

The AF is OK - not as fast as a USM lens, but it's quiet and keeps track fairly well - this is on a 300D, whoch hasn't got the best AF system in the world.

I was surprised to find that I also get decent shots with this with the Kenko 1.4 pro TC, and the AF remains usable in good light.

All in all, this is the best affordable 500MM lens around at the moment, IMHO.

Canon EF 75-300mm f/4-5.6 III USM

Review Date: Mar 10, 2005 Recommend? yes | Price paid: $110.00 | Rating: 7 

Pros: Price, size, weight. Images are not bad
Some CA. Needs to be at F8 to get sharp results @300MM

I go t this at a bargain price with the 300D and can't complain.

I've achieved sharp handheld results @300MM and some lab tests I have for this show that it is as sharp as the 100-400 L throughout its focal length.

The problem with this lens is that, being so light, it's easy to forget that at 300MM it needs proper long lens technique to get decent results. 300MM at F8 is pretty good.