K20D lens collocation, mainly shooting landscapes and portraits, not a lot of silver, experts to giv

The budget is very limited, it is recommended to 18-55mm F al, about 800 yuan. Although it is the lowest-end pullover of Pentax, the optical quality is not bad, and the focal length is also more practical. 2.

Socket for K20D, 16-45mm F4 Ed Al, around 2200. The wide-angle end has an equivalent focal length of 24mm, a wide angle of view (far from 18mm), a very good landscape that works, and is almost the cheapest original constant-aperture lens, which is quite affordable, and the imaging results are good, but the focal length range is not long enough to make it difficult to take half-length portraits or portrait close-ups. 3.

17-70mm F 4 al [if] SDM, around 4200. The focal length end is practical, covering the most commonly used focal length range, the imaging effect is very good, the workmanship is also great, and the focus in IF is more conducive to dust resistance. On the K20D, it is equivalent to the 24-105mm F4L on Canon full-frame, which is quite easy to use.

**Although it is not low, it is already very affordable compared with Nikon and Canon lenses of the same grade. If you have any questions, please feel free to add!

About DA 50-135mm ED6500 and around DA 16-45mm F4 ED3200. This can cover most focal lengths, 2 heads can take portraits, 16-45 shots of scenery is basically enough and the imaging is relatively good, ** is a little higher, but it is also cheaper than a head of n and c, but the film is not worse than n c, and it is very cost-effective.

It is convenient to go around the world with one shot, and the disadvantage is that the imaging is average, the shooting of humanities is not very tasteful, the blur of shooting portraits is not enough, and the sharpness is not good. But the cost is not very high.

You can consider a lens + a large aperture fixed focus with a focal length of about 35 or 50, the cost is low, the large aperture is suitable for indoor photography, and it is also very tasteful to sweep the store and sweep the street with this focal length.

The ultra-wide can be Pentax da Fish-Eye 10-17mm F ed lens 3300 or Sigma 10-20, ** more than 4000, the wide angle of APSC is not affordable, if you really like it, then there is no way, otherwise 17 18mm scenery is enough.

The wide angle can be Pentax DA 16-45mm F 4 ED 2400 is a more affordable focal length, but if there is 18-55, I don't feel like I'm in a hurry to upgrade. Tamron 17-35 can also be considered, there is a large aperture, full frame, not expensive, second-hand is cheaper, but pay attention to the selection.

The standard focus has Tamron A16 B005 18-55 The entire focal length has a large aperture, which can be considered a balance, and 55 portraits are also OK.

Calibrated with Pentax 40, Sigma 30 f2 and other focal lengths are very practical and recommended!!

The 77 princess head is the first to be recommended, and the 70-200 Sigma Black and Tamron A001 can also be followed, and the zoom is also practical.