Stick to Canon Lens

I have the Canon EOS 20D and the following lens:

17-85
50 prime 1.4
10-22 EFS
100-400 IS USM (just ordered)
2x Extender (just ordered)

All of these are canon lens. I hear a lot about Sigma and, to a lesser extent, Tamron.

Although probably a little while off, what would be a good next lens for shooting landscape?

Canon 10-22mm

got the Canon 10-22mm lens already. any other suggestions?

That's the point. You already have one of the best landscape lenses for a crop camera. Get out and use it.

I like these two.

TS-E 24mm f3.5L (you'll need a tripod)

& 135mm f2L

That'll be a challenging combo to handheld: 100-400mm plus 2x on 1.6 crop giving you 1280mm at f11.

Why would you want another landscape lens when you already have by far the best one (for APS-C)

Dragos Jianu wrote:
Why would you want another landscape lens when you already have the very best one for the 20D

I'm thinking gearhead more than photographer. heh. Although as much as I've been cooped up lately you could assume the same about me. lol.

I would think a 2X on the 100-400 will kill the IQ dead.

malla1962 wrote:
I would think a 2X on the 100-400 will kill the IQ dead.

It does ...

The 10-22mm is a very nice lens and will do a good job of landscapes.

The 10-22 should suit you fine. Only improvement I could think of is a Tilt-Shift if you do a lot of tall buildings.

You should use the 10-22. Take the money and buy a 200 f2.8L.

on the subject of wide angle for landscapes, what lens would you recommend that is NOT an EF-S? (asking out of curiosity)

for APS-C cameras you have a short list:

Tokina 12-24mm
Tamron 11-18mm Di II
Sigma 10-20mm DC
All suffer the same issue as EF-S, they won't work on FF models.

All are in the $500 range, you could also look at the Sigma 12-24mm for $700 range it will work on FF models as well. But the APS-C only lenses may deliver better results for a tad less cash.

Else, I love using my Sigma 18-125mm DC at about 40mm pan several shots shot and use the photostich program that came in the software bundle with your Rebel it was free and a heck of a fun tool.

Another vote for tilt & shift lens.

And just trying to think outside the box here. For the same cost as a Canon T&S lens, you can pick up a used 4X5 view camera and get even more control over the picture than fixed axis cameras.