User manual NIKON AF-S DX MICRO- NIKKOR 40MM F/2.8G

[. . . ] Viewing the sun or other bright light source through the lens or viewfinder could cause permanent visual impairment. Failure to observe this precaution could result in injury. € Observe the following precautions when handling the lens and camera: - Keep the lens and camera dry. [. . . ] If desired, autofocus can be over-ridden by rotating the lens focus ring while the shutter-release button is pressed halfway (or, if the camera is equipped with an AF-ON button, while the AF-ON button is pressed). To refocus using autofocus, press the shutter-release button halfway or press the AF-ON button again. The Focus Limit Switch This switch determines the focus distance limits for autofocus. FULL: Select this option for subjects that may be closer than 0. 2 m: If your subject will always be at distance of at least 0. 7 ft), select this option for faster focusing. 2 stops to maintain the same effective f-number at different focus distances. – Depth of Field If the camera offers depth-of-field preview (stop down), depth of field can also be previewed in the viewfinder. Jp En De Fr Es Sv Ru Nl Pt Pb It Cz Sk Ro Ua Ck Ch Kr Id 15 Jp En De Fr Es Sv Ru Nl Pt Pb It Cz Sk Ro Ua Ck Ch Kr Id 16 ■ Reproduction Ratio The reproduction ratio is the ratio of the apparent size of an object to its true size. If, for example, the image on the image sensor is one-third of actual size, the reproduction ratio is 1 : 3. If desired, the reproduction ratio can be selected using the reproduction ratio indicator. Example: Using the Reproduction Ratio Indicator To shoot at a reproduction ratio of 1 : 3, select manual focus and rotate the focus ring until the focus distance mark aligns with the number “3” in the reproduction ratio indicator, then move the camera forward or back until the subject is in focus. – Close ups and Reproduction Work To prevent blur caused by camera shake, mount the camera on a tripod and use a cable release or remote cord. Close ups are generally associated with extremely shallow field depths; for greater depths of field, stop down the lens, choose longer exposure times, and position the camera so that the focal plane is parallel to the portion of the subject you wish to photograph. When using a lens hood, be careful that the hood does not touch the subject. – Exposure Factor The lens f-number indicates the brightness of the subject at a focus distance of infinity; higher reproduction ratios result in reduced subject brightness. The actual brightness is referred to as the “effective f-number”, and the amount that exposure compensation has to be raised to account for the loss in brightness as the “exposure factor”. – Changes to the Effective f-number With this lens, the higher the reproduction ratio (the shorter the focus distance), the darker the image that falls on the image sensor and the higher the effective f-number (see the figure on page 162). [. . . ] – Supplied Accessories • • • • 52 mm snap-on Front Lens Cap LC-52 Rear Lens Cap LF-4 Bayonet Hood HB-61 Flexible Lens Pouch CL-0915 ■ Compatible Accessories • 52 mm screw-on filters ■ Specifications Type Focal length Maximum aperture Lens construction Angle of view Reproduction ratio indicator Distance information Focusing Type G AF-S DX Micro NIKKOR lens with built-in CPU and F mount 40 mm f/2. 8 9 elements in 7 groups 38° 50 ′ ∞ to 1 : 1 Output to camera Autofocus controlled by Silent Wave Motor with separate focus ring for manual focus Focus distance indicator 0. 3 oz Nikon reserves the right to change the specifications of the hardware described in this manual at any time and without prior notice. [. . . ]