« on: July 02, 2014, 03:33:26 PM »
If it's more than 150 on the wide end, then I definitely won't be interested. If I want a narrow range of focal lengths, I'll get a 400/5.6. I want a zoom because I need a zoom.
Sony makes a 70-400.
Yep, the 100-400 is an odd range, slotting in with a 24-105 as it's only option. Which is a really old lens and really needs an update. The 24-70 lenses have 70-200 and 70-300 partners.
From a marketing and consumer point of view, it's great to have zooms that leave no gaps in focal length. In practice though this is much less of an issue than one would think. Being able to go down to a 'near normal' focal length like 70 mm on full frame can be very practical in a tele-zoom however. This is an important reason why my 70-200 and 70-300 more often find their way to my lens mount than the 100-400. I really only use the 100-400 when I need the reach, and the flexibility is a bonus. I have actually thought about getting a 400 mm f/4 prime (big white that unfortunately does not exist) or 300 f/2.8 (couple to a 1.4 TC) but cannot justify the cost nor the loss of the zoom flexibility. My interest in the 100-400 is growing rather old however...