What lenses of Pentax k 10d have larger apertures, which are specially used for street sweeping and humanities?

Recommend three. A50 f 1.4, FA 3 1 qualification, FA*24 f2.0.

A50 f 1.4, with large aperture, good color and low price, and the better color shall not exceed 1400. But it depends on your level. This is a manual head. The other 50 is placed in the upper part of the picture, and the viewing angle is a little small, which is not suitable for close-up shooting. It's great to get out of a black-and-white movie!

FA3 1 Princess has a large aperture and good color, but it is a little expensive. On the whole, it is a compulsory humanistic perspective, and half a picture is enough.

FA*24 f2.0, a controversial star head, can't find this focal segment to replace in the garbage can anyway. It's just a humanistic perspective on half a picture. Second-hand prices are a bit expensive.