Where to from here?

[Clara]

I use a 10D and D30. Currently I own a 28-135 IS and 70-200 f4L. My main subjects have been my kids I plan to do more outdoor type photography like landscapes, nature etc. as my kids do not want to pose for me anymore.
Can you all throw out suggestions on the next lens purchase that would make the most sense? I am happy to stick with Canon lenses.

[SimonDP]

You have what it takes for landscapes, mostly. The only area where you can improve is the wide angle part, as your 28mm will be approx 45mm on your 1.6 crop factor cameras. If you feel that is not wide enough, get the 17-40 L, which is a very good lens, but may be expensive. Personally, I have only 24mm as my widest lens, and it has not bothered me at all.

[John Lindsay]

I must agree. I have the 17-40 f4.0 L and it's a brilliant lens. Very sharp, good contrast and colour rendition. For landscape it's one of my most used lenses - abit more expensive than "consumer grade" lenses, but once you've used it, you're hooked!