How to choose Pentax KR macro lens?

Pentax actually has a lot of macro options.

Longteng's 90 micro

Sigma's 50μ m105μ m

My own 35μ 50μ100μ

If you want to shoot a bug, you must have a longer focal length, otherwise it is easy to scare the bug when you get close. According to the focal length, Longteng SP90 Sigma 105 Pentax is acceptable.

Focus speed, bug shooting and focus speed are also important. Sometimes it's just a moment, and if you miss it, it's gone. Pentax's own 100 micro-focus is not fast and the distance is long, which is very unfavorable to shooting dynamics, while Longteng SP90 and Sigma 105 are slightly better.

The color must be original, but the optical quality is better than that of NC. And Longteng SP90 has a good reputation, and the color on P's body is also very good.

Price: SP90

Comprehensive recommendation: Longteng SP90

Accessories: ring flash and macro pan/tilt are needed (Taobao is only a few tens cheaper, just make do).