Tamron AF 75 - 300MM F/4 - 5.6 LD MACRO 1:3.9 672D - Manual (Page 7)

Fig. 9
Altering camera between vertical &
horizontal positions
1. Loosen lock knob by rotating knob
counterclockwise.
2. Turn camera and lens so as position
alignment marks meet each other.
3. Tighten lock knob by rotating knob
clockwise.
Fig. 10
Detaching tripod-attaching base
1. Loosen lock knob by rotating knob
counterclockwise.
2. Pull out lock knob slightly.
3. Turn attaching ring upward while holding
locking knob.
*When detaching tripod-attaching base,
hold camera and lens securely, not to
accidentally drop your valuable equipment.
CHECKING DEPTH-OF-FIELD
When you set the focus of a particular subject, there is an area in front of you
and behind your subject that will also be in focus.
The depth-of-field table shows aperture values horizontally and ranges vertically.
If, for example, the aperture is F8 and the shooting range is 5m (Focal length
400mm), the depth-of-field value is 4.96 (m)-5.04 (m) where F8 in the horizontal
column and 5m in the vertical column intersect. If your camera has a preview
mechanism, the depth-of-field effect can be confirmed in the viewfinder. For further
details, see the instruction manual of your camera.
PRECAUTIONS IN SHOOTING
When the built-in flash on the camera is used, symptoms such as corner
illumination fall-off or vignetting at the bottom part of the image may be observed,
especially at the wider-angle range. This is due to the inherent limitation of the
coverage of the built-in flash, and/or the relative position of the flash to the edge of
the lens barrel, which causes shadows on the image. Accordingly, we recommend not
using the built-in flash at wider-angle settings.
Please refer to the section of your camera's instruction manual pertaining to the
use of the built-in flash, since the angles of coverage of the flashes differ between
camera models.