Tannin
Senior Member
It has always seemed strange to me that the standard lenses have so much overlap.
Take a typical kit in full frame lenses. It is likely to be something like:
16-35, 24-70, and 70-200
or
16-35, 24-105, 100-400
in crop,
10-18, 17-55, and 55-250
In Micro Four Thirds, the holy trinity is
7-14, 12-40, 40-150
Notice the pattern here.
Notice how neatly the longer lenses match: the 27-70 and the 70-200 dovetail together, with no gaps and no wasteful overlap. Ditto the 24-105 and the 100-400; ditto again the 12-40 and the 40-150 (if you are used to full frame, think of those two as a 24-80/2.8 and an 80-300/2.8). The only exception is the 1.6 crop set, where the 55-250 is a cheap lens better matched with the plastic 18-55 and not worth of comparison to the high quality 10-22 and 17-55 units. Presumably, Canon decided that crop buyers could make do with full frame 70-200s if they wanted something better, or else take a 15-85 instead of the 17-55.
Now notice how poorly the shorter lenses match. In every case, you have wasteful overlap. The overlap between (for example) 35 and 24 makes one or both lenses heavier, physically larger, more expensive, and makes it more difficult to achieve ideal image quality. And it serves very little useful purpose.
For example, I have the 16-35/4 and 24-105/4. Result: my beautiful 16-35 seldom gets used unless I want to go shorter than 24mm. I could use it for shots at e.g.) 30mm, but generally don't. I just use the 24-105. But I still have to carry that bulky, heavy 16-35 around anyway, ready for the times when 24mm isn't enough.
It has always seemed weird to me that Canon don't make either something like a 14-22 to match up with 24-105 and/or 24-70, or else (say) a 35-135/4 to sit above the 16-35. Instead, we get the overlap.
(Yes, there is the Canon 10-20. That exposed front element always looks so vulnerable though. If you owned one, you'd have to be super careful with it.)
Take a typical kit in full frame lenses. It is likely to be something like:
16-35, 24-70, and 70-200
or
16-35, 24-105, 100-400
in crop,
10-18, 17-55, and 55-250
In Micro Four Thirds, the holy trinity is
7-14, 12-40, 40-150
Notice the pattern here.
Notice how neatly the longer lenses match: the 27-70 and the 70-200 dovetail together, with no gaps and no wasteful overlap. Ditto the 24-105 and the 100-400; ditto again the 12-40 and the 40-150 (if you are used to full frame, think of those two as a 24-80/2.8 and an 80-300/2.8). The only exception is the 1.6 crop set, where the 55-250 is a cheap lens better matched with the plastic 18-55 and not worth of comparison to the high quality 10-22 and 17-55 units. Presumably, Canon decided that crop buyers could make do with full frame 70-200s if they wanted something better, or else take a 15-85 instead of the 17-55.
Now notice how poorly the shorter lenses match. In every case, you have wasteful overlap. The overlap between (for example) 35 and 24 makes one or both lenses heavier, physically larger, more expensive, and makes it more difficult to achieve ideal image quality. And it serves very little useful purpose.
For example, I have the 16-35/4 and 24-105/4. Result: my beautiful 16-35 seldom gets used unless I want to go shorter than 24mm. I could use it for shots at e.g.) 30mm, but generally don't. I just use the 24-105. But I still have to carry that bulky, heavy 16-35 around anyway, ready for the times when 24mm isn't enough.
It has always seemed weird to me that Canon don't make either something like a 14-22 to match up with 24-105 and/or 24-70, or else (say) a 35-135/4 to sit above the 16-35. Instead, we get the overlap.
(Yes, there is the Canon 10-20. That exposed front element always looks so vulnerable though. If you owned one, you'd have to be super careful with it.)