Who recommends Pentax KX lens?

According to your needs and budget, Pentax DA 35mmf/2.4 is recommended to you. The current price is about 1 150.

The child is active, it must be an autofocus lens, and the focusing speed should be fast. The focusing speed of Pentax DA 35mmf/2.4 is faster.

Your shop is not very big. If you are indoors, don't use a lens with a focal length of more than 35mm, which is inconvenient.

In addition, a relatively large aperture is required. The aperture of DA 35mmf/2.4 is not very large, but it is not small. In addition, Pentax kx has a good sense of height and satisfactory aperture, and Jiao Wai of DA35 performs well.

In addition, DA 35mmf/2.4 has a variety of colors to choose from. Colored lenses can attract children to a certain extent and improve the success rate of taking pictures.

Pentax DA*55mmF 1.4, the background blur is good, but it is close to 5000 yuan, so it can't be displayed indoors. DA40F2.8 and FA35F2 are also well beyond your budget.