<p>T90 and just about any lens does it for me. My favorite zooms are the FD28-85 and FD80-200L and are great for mindless shooting. Single focal length lenses force me to think about what I want to shoot, and why. The primes I use most are the 17/4, 24/1.4L, 35 Thorium, 85/1.2L, 100/4 Macro, and 135/2. The 35 Thorium is a deep yellow now, and is fabulous for black and white shots.</p>
<p>In short, I don't have a single favorite lens.</p>