User manual PENTAX SMC DA 16-45MM F4.0 ED AL

[. . . ] smc PENTAX-DA INTERCHANGEABLE LENS OPERATING MANUAL FOREWORD Thank you for purchasing the smc PENTAX-DA lens. Please read this operating manual carefully before using the lens to ensure that it is used properly. The smc PENTAX-DA lens can be used exclusively with PENTAX digital SLR cameras. · · · · In this operating manual, "smc PENTAX-DA lens" is shortened to "DA lens. " Illustrations shown herein may differ from the actual appearance. [. . . ] When taking a picture in this range, we recommend that you use a smaller aperture, stopping down from full aperture. ZOOM LENS 23 Focusing index Lens hood attaching index Focusing ring Distance scale Zoom ring Focal length scale Zoom index Mounting index 24 The zoom lens has a focusing ring on the front side and a zoom ring on the rear side. Turn the zoom ring to set the desired angle of view (lens focal length). Memo: · The focusing point may shift slightly by changing the focal length. · The focusing index on the zoom lens is set to match the focus point when the focal length is at telephoto. The focusing index may not match the focus point for other focal lengths. About the zoom ring Turn the zoom ring clockwise for telephoto and counterclockwise for wide-angle. MACRO LENS DA 35mm f/2. 8 Macro Limited lens adjust focus from infinity to life-size [1x]. 25 Magnification Scale The magnification is indicated by denominators on the distance scale. When determining the magnification first, set the magnification in the manual focus mode and adjust focus by moving the camera closer or further from the subject. 26 ATTACHING THE LENS HOOD In order to avoid deterioration in image quality from internal reflection, use of a lens hood is recommended. a a. Screw-on Type (DA 70mm f/2. 4 Limited dedicated lens hood) Screw the hood on to the front of the lens to attach it. Memo: The lens hood cannot be mounted on some circular polarizing filters that are not produced by PENTAX. 27 b c Lens hood attaching index b. Screw-on Type (DA 40mm f/2. 8 Limited dedicated lens hood) Screw the hood on to the front of the lens to attach it. c. Bayonet Type When attaching the lens hood, align the index on the lens hood with the attaching index on the lens, and push both parts straight toward each other. Attach the lens hood on the lens by turning the hood in the clockwise direction, as viewed from the front of the lens, to lock it until it clicks into position. Memo: · When attaching the lens hood, hold the focusing ring and zoom ring securely to prevent them from turning. · When the lens hood is not in use, it can also be turned around and attached in the reversed position. 28 d Lens hood attaching index d. Bayonet Type (DA 21mm f/3. 2 AL Limited dedicated lens hood) When attaching the lens hood, align the index on the lens hood with the attaching index on the lens, and push both parts straight toward each other. Attach the lens hood on the lens by turning the hood in a clockwise direction, as seen from the front of the lens, until it stops. Memo: · Vignetting occurs if the camera is used while the hood is not completely attached. · The dedicated lens hood cannot be attached if a filter is attached to the front of the lens. To use a filter and the dedicated lens hood together, attach a 43mm diameter filter to the back of the hood. (Refer to page 33) 29 1 2 About the PL filter window A PL filter window is attached to the bayonet-type hood included with the lenses below to make manipulating the polarizing filter easier. - DA 55mm f/1. 4 SDM - DA 16-50mm f/2. 8ED AL [IF] SDM - DA 18-55mm f/3. 5-5. 6 AL WR - DA 60-250mm f/4ED [IF] SDM - DA 55-300mm f/4-5. 8ED - DA 300mm f/4ED [IF] SDM - DA 16-45mm f/4ED AL - DA 17-70mm f/4AL [IF] SDM - DA 50-135mm f/2. 8ED [IF] SDM - DA 50-200mm f/4-5. 6ED WR - DA 200mm f/2. 8ED [IF] SDM CAUTION The PL filter window cap of the DA 55mm f/1. 4 SDM cannot be attached or removed with the hood attached to the lens. Remove the hood from the lens to attach or remove the window cap. 30 How to use the lens hood with polarizing filter window 1. Remove the PL filter window cap by sliding it in the direction as shown above. [. . . ] 0. 24× 52mm PH-RBB 52mm (sold separately) 76. 5mm × 136mm 66. 5mm × 78. 5mm (3. 0in × 5. 4in) (2. 6in × 3. 1in) Approx. 265g/ 27. 0oz) 9. 3oz) S90-160 S80-120 53 DA 50-200mm f/4-5. 6ED WR 50-200mm (equivalent to Focal length approx. 76. 5-307mm in 35mm format) Elements in groups 11-10 Angle of view 31. 5°­8. 1° Aperture f/4­f/5. 6 Minimum aperture f/22­f/32 Mount type KAF-mount Minimum focus 1. 1m (3. 6ft) distance Maximum Approx. diameter 69mm × 79. 5mm × length (2. 7in × 3. 1in) Lens DA 55-300mm f/4-5. 8ED 55-300mm (equivalent to approx. [. . . ]