聚焦系统
| 最近聚焦距离 |
1.4 m |
| 对角线视角(最大) |
29 ° |
| 最大光圈 |
22 |
| 焦距 |
85 - 450 mm |
smc DA 55-300 mm / 4.0 - 5.8 ED
A highly efficient zoom lens that covers the short to long telephoto range of 85 to 450mm (equivalent in 35m film format). The exclusive PENTAX SP Coating effectively protects its front lens against dirt and contamination. Additionally, the focusing ring permits easy manual focusing. New optics are especially adapted for high quality PENTAX DSLRs.