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ZOOM LOCK SWITCH (Ref. Figs. 3 & 4)

Model A16 is equipped with zoom lock switch mechanism which prevent lens barrel from
extending towards long focal length, while hanging around the neck. Activate the switch at
the shortest setting to stop the lens barrels from rotating and extending.

How to activate the zoom lock switch mechanism

1. Locking: Set the zoom ring on the lens to the shortest position. Move the zoom lock
switch (12) toward the camera for locking the zooming ring (9). The lens barrel is locked in
position when the portion beneath "Lock" is shown in red and the lens barrel does not
rotate or extend by its own weight.
2. Releasing: Push the zoom lock switch (12) up. The zooming ring (9) is now released and
can be rotated.

Zoom lock switch cannot be activated unless the lens is set to the shortest position. Do not force the

lock switch or try to rotate the zooming ring while locked; doing so may damage the lens.

The zoom lock mechanism is made to prevent the lens barrel from extending while carried around

the neck. When not locked, the zoom lens may change its focal length during a long exposure used in a low
or high angle position.

The lens can be used at the shortest setting for picture taking even while in the focused position.

LENS APERTURE AND AE MODE 

Please follow the instruction manual of your camera.

LENS HOOD (Ref. Figs. 1, 7, 8, 9) 

A bayonet-type lens hood is provided as standard equipment. We recommend shooting
with the hood attached whenever possible as the lens hood eliminates stray light which is
harmful to the picture. However, please be aware of the precautions written below when
your camera is equipped with a built-in flash.

Attaching the Lens Hood (Ref. Figs. 7 & 8)

Align the index mark (2) on the hood with the corresponding index mark (5) or the top of

the index line of the distance scale, on the lens. Press the hood lightly onto the hood attach-
ing bayonet ring (Fig. 7, No. 1) and then rotate it clockwise to secure (Fig. 7, No. 2). The lens
hood will be securely held as the mark "TAMRON O" comes to the top (Fig. 8, No. 3). When
attaching the lens hood, hold the focusing and zoom control rings so that they are not
rotated unintentionally.

Pay particular attention to align the hood attaching indexes when using zoom lenses including

wide-angle (ex. 35mm or wider) settings. Improper attachment of a hood for wide-angle zoom lens may
cause large shadowed areas in your pictures.

Summary of Contents for A16

Page 1: ...designed for digital SLR cameras with image sensors equivalent to APS C size Before using you new lens please read the contents of this Owner s Manual thoroughly to familiarize yourself with your lens...

Page 2: ......

Page 3: ...AF MF altering switch Canon Fig 5 6 15 Lens attachment mark 16 Bayonet tab on the hood 17 Bayonet tab on the lens A16 Focal Length 17 50mm Maximum Aperture F 2 8 Angle of View 78 45 31 11 Lens Constr...

Page 4: ...let carefully When set on AF mode be very careful not to hinder the autofocusing movements of the lens Such interference may cause a serious damage on the lens mechanism Select between the autofocus a...

Page 5: ...SLR cameras have index marks for attaching both EF lenses red and EF S lens es white on the bayonet mount To attach Tamron Di II lenses align the lens attachment mark on the lens 15 with the index ma...

Page 6: ...exposure used in a low or high angle position The lens can be used at the shortest setting for picture taking even while in the focused position LENS APERTURE AND AE MODE Please follow the instructio...

Page 7: ...than that of the lenses applying an ordinary focusing system When the built in flash on the camera is used adverse photographic phenomena such as corner illumination fall off or vignetting at the bot...

Page 8: ...or in any humid place Store your lens in a clean cool dry place When storing your lens in a lens case store it with commercially available drying agents such as silica gel and change the agent occasio...

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