ZOOMING
To set your lens to the desired image composition you desire, simply look through the viewfinder and operate the zoom ring.
APERTURE CONTROL & AE SETTING
Canon / Minolta
Your camera controls the aperture depending on the shooting mode in use. Although the aperture value varies in accordance with zooming, the camera itself reads out the change to provide automatic compensation.
Nikon / Pentax
When shooting in programmed AE or shutter-priority AE mode, rotate the aperture ring to the minimum position. For aperture-priority or manual mode, turn the aperture ring to the desired setting. In case of F401/F50 series models, the aperture is set by the camera in accordance with the given camera instructions.
LENS HOOD
A bayonet-type lens hood is provided as a standard accessory. Tamron recommends shoot- ing with the hood attached whenever possible as the lens hood cuts out light, which is harmful to image quality. However, please be aware of the precautions noted below when your camera is equipped with a built-in flash. When the hood is not in use, it can be placed on the front of the lens in reverse:
Attaching the Lens Hood Align the index mark on the hood with the corresponding index mark on the lens. Push the hood onto the lens and then rotate it clockwise to secure. When attaching the lens hood, hold the focusing and zoom control rings so that they are not rotated unintentionally.
TRIPOD SOCKET (Ref. Figs. 9 & 10)
To change the camera from horizontal to vertical position or vice versa, loosen the locking knob for the tripod-attaching base by rotating it counterclockwise, then rotate lens and the camera about the longitudinal axis of the lens. Tighten the locking knob by rotating it in clockwise direction until it stops. (Fig. 9)
To remove the tripod-attaching base, loosen the locking knob, pull it back slightly, and then lift the knob to open the tripod base ring as illustrated in Fig. 10. When removing the tripod-attaching base, hold the lens and the camera securely to prevent them from both accidentally falling.
