Focal Distance 16-50mm 35mm format value 24.5-76.5mm equivalent (when PENTAX APS-C size SLR camera is installed) Open squeezing F2.8 minimum aperture F22 lens configuration 10 groups 16 pieces angle of view (diagonal) 83-31.5 ° (PENTAX APS-C size SLR camera is installed) mount type kaf4 The shortest shooting distance 0.3m Maximum shooting magnification 0.24 times Filter diameter 77mm Light amount adjustment method Electromagnetic aperture fully automatic squeezing Number of squeezed feathers 9 cards circular aperture (16mm → f2.8-5.6, 50mm → f2.8-8) Aperture ring None Syujin None Lens food PH-RBN77 (attached) Lens cap O-LC77 (attached) Lens case S120-150 (attached) Maximum diameter x length about 84mm x about 117mm mass (weight) 712g (with hood → about 750g) Use temperature -10-40 ° C Used humidity 85%or less (not condensation) bundled accessories Lens Food PH-RBN77, lens cap O-LC77, lens mount cap K, lens case S120-150 Others HD coating, SP (Super Protect) coating, AW (dust/drip -proof structure), Quick Cinift Focus System (QFS/M), Pulse Motor
