Thu 13-Dec-12 01:44 AM | edited Thu 13-Dec-12 01:54 AM by Leonard62
For a small, light and inexpensive wa lens, the AF 24mm f2.8 is a good choice. I like the 24mm focal length. I find it's better than the AF and AIS 28mm f2.8 lenses and the 20mm's.
Since getting the 24mm f1.4, it's my landscape lens maybe 90% of the time. I hardly use my 14-24mm. It's clearly superior to Nikon's AF 20mm, 24mm, 28mm f2.8 lenses for sharpness from the center all the way out to the corners. I can use it on my D3X at ISO 200 and take a small 100% crop from anywhere in the frame and it doesn't look like a crop at all.
Here's a crop from a 100% enlargement. f11, ISO 400 and taken directly from the raw file from my D3X. Except for the crop no pp.
Also look into the AFS 28mm f1.8. I like that lens too.