The User’s Review: SMC Pentax-F 35 – 80 mm 1:4 – 5.6 Zoom Lens

This lens (4758012) was made in Taiwan. The lens has a mental mount and plastic body (see the images below). Its zoom ring has a scale marked at 35, 50 and 80; the aperture ring is marked as 4, 5.6, 8, 11, 16, 22 and A, which is associated with a luck button to lock in and release; When you turn the distance ring, the focus distance in both m and ft is shown in the distance window. A macro range marked in green is between 0.4 – 0.6 m (1.3 – 2 ft). The lens fully extends at zoom 80/distance 0.4 m, and fully retracts at zoom 50/distance infinite. The front piece, fitting with 49 mm filters, turns with the distance ring.

This lens works well on my Pentax DSLRs. 

Figure. Various views of SMC Pentax-F 35 - 80 mm zoom

Later I also wrote a review on the Pentax-FA 28-80mm lens.