User manual TAMRON SP AF 90 2.8 DI MACRO 1:1 (MODEL 272E)

[. . . ] Set the camera in the AF mode, and move the focusing ring upward to the AF position. Press the shutter release button half-way while looking through the viewfinder. * With Minolta and Pentax cameras, when focusing ring is set in the manual focus position while the camera is set in AF mode, the focusing ring rotates as if it were in the autofocus mode. Turning of the focusing ring in this instance may cause damage to the lens and/or the camera body. [. . . ] 4 & 5) Setting lens f-numbers with Canon & Minolta cameras Set the f-number with aperture setting device of the camera body in accordance with the selected photographing mode. Setting lens f-numbers with Nikon & Pentax Depending on the photography mode, it is possible to set the aperture on either the lens aperture ring or on the camera body. LENS APERTURE AND AE MODE (Ref. 4 & 5) (con't) Setting the aperture on the aperture ring Set the lens aperture ring so it is on the smallest f-stop for a Nikon camera and so it is not on the A mark for a Pentax, then set the f-stop you want with the indicator. Setting the aperture on the camera Set the lens aperture ring so it is on the smallest f-stop for a Nikon camera and so it is on the A mark for Pentax, then set the f-stop you want with the indicator of the camera body. Cameras read the different lens openings and automatically adjust the exposure properly. * For further details, please read the instruction manual of your camera. ATTACHING THE LENS HOOD (Ref. Align the index mark on the hood with the corresponding index mark on the lens. The index mark (O) on the hood appears on the top when it is correctly attached. Then align the index mark (O) on the hood with the index mark on the lens. The index mark on the hood appears at the top when correctly stowed. USING THE FOCUS LIMITER (Ref. Fig 9) When the focus limiter knob is set to "LIMIT", the camera can be autofocused with greater speed within that range. For range from maximum close-up to infinity Set the focus limiter knob to "FULL" For close-ups (0. 29m to approx. 0. 4m) Set the distance scale to a point between 0. 29m and 0. 4m, and then set the focus limiter knob to "LIMIT". For normal photos (0. 45m to infinity) Set the distance scale to a point between 0. 45m and infinity, and then set the focus limiter knob to "LIMIT". * When shooting close-ups with the focus ring set between about 0. 40m and 0. 45m the focus limit knob cannot be set to LIMIT. This is due to the camera's mechanical system. ABOUT MACRO PHOTOGRAPHY (Ref. Since the distance scale and the magnification scale are imprinted side by side, you can get a general idea of the magnification when shooting a picture. 272E Minimum Focus Distance Maximum Magnification Ratio Magnification Scale 0. 29m 1:1 1:10 - 1:1 * For the correlation between the photographic distance and photographic magnification, please refer to table 12. EXPOSURE RATE (Ref. 12) When the lens is moved outwards to increase the magnifications ratio for shooting closeups, the actual brightness on the film decreases, and the effective F number changes. For auto exposure photographing, using an external exposure meter, or when using and external light-adjusting flash however, the exposure must be corrected for this decrease in brightness according to the magnification ratio. For the amount of the correction, refer to table 12. DEPTH-OF-FIELD (Ref. 13) With a camera equipped with a depth-of-field preview button or an aperture-stop-down mechanism, the depth of field can be directly observed through the viewfinder screen of your camera. [. . . ] Certain camera models may indicate the maximum aperture values of the lens as approximate numbers. This is inherent to the design of the camera and not an indication of error. TO ENSURE LONG-TERM SATISFACTION Avoid touching the glass element surface. Use a photographic lens cloth or blower brush to remove dust from the lens element surface. When not using the lens, always place a lens cap on it for protection. [. . . ]