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Pentax smc A 20 mm f/2.8
Specifications:
| Manufacturer | Pentax |
|---|---|
| Model | smc A 20 mm f/2.8 |
| Lens style | Wide angle |
| Focal length | 20 mm |
| Maximum aperture | f/2.8 |
| Angle of view | 94 o |
| Closest focusing distance | 0.24 m |
| Maximum magnification | |
| Minimum aperture | 22 |
| Number of diaphragm blades | 0 |
| Auto focus type | MF |
| Lens Construction | 10 elements / 9 groups |
| Filter diameter | 67 mm |
| Macro | No |
| Available mounts | Pentax K |
| Dimensions | 71 x 43 mm |
| Weight | 245 g |
| Additional information |
Average rating (1 owners reviews).
| Build quality | 5.00 |  |
|---|---|---|
| Optical quality | 4.00 |  |
| Value for money | 4.00 | |
| Overall | 4.33 |  |
| Build quality |  |
|---|---|
| Optical quality | |
| Value for money | |
| Overall | |
User: Arnold
IP 134.100.x.x
Date: 2010-02-19 15:47:20
Owner since: 5 years
Price: 140 Euros
User profile: Amateur
Owner since: 5 years
Price: 140 Euros
User profile: Amateur
Cons: at open aperture the corners lack a little bit of resolving power and contrast. With the original *ist D this problem was even more pronounced.
Pros: Nice angle of view. On the K20D very good performance from f4.
Summary: My standard wide-angle on the K20D
