Pentax lens tangles 2 1. 15 14 three heads. The tourist scenery sweeps the street, not too much.

For traveling and sweeping the street, it is recommended that 2 1 the last two are too wide and the field of vision is too wide to control. .......................................................................................................................................

2 1 is equivalent to 3 1, which is a small wide angle. Best for traveling and sweeping the streets. It's easier to control if you don't have too much field of vision ... The picture quality is better than 14 and slightly worse than 15, but the focal angle is the first priority. ...

In addition, the volume ratio of 2 1 is small.