Tamron A16 Manual de usuario

17~50

F/2.8

Di-III

Aspherical

[IF]

(Model

A16)

Thank you for purchasing the Tamron lens as the latest addition to your

photographic equipment. Di II lens (Digitally Intigrated) series are

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 and

the proper techniques for creating the highest quality images possible.

With proper handling and care, your Tamron lens will give you many

years of photographing beautiful and exciting pictures.

NOMENCLATURE

1. Lens Hood

2. Hood attaching alignment mark

3. Hood attaching indicator

4. Filter Ring

5. Hood attaching bayonet ring

6. Distance index

7. Distance scale

8. Focusing ring

9. Zooming ring

10. Focal length scale

11. Zoom index mark

12. Zoom lock switch (A16) Figs 3 & 4

13. Lens mount/Lens mount contacts (Nikon)

14. 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 Construction 13/16

Minimum Focus Distance 0.27m

Filter Size 67mm

Length 83.2mm

Diameter 73.8mm

Weight 430g

Hood DA09

SPECIFICATIONS

* Lengths and weights listed in lens specifications are for lenses with Nikon mounts.

* Features and cosmetic designs of lenses listed in this owner's manual may be revised

without notice.

ATTACHING LENS TO CAMERA

How to mount the lens

Removing the rear cap of the lens, align the lens attachment mark on the lens barrel with its

counterpart on the lens mount of the camera and insert the lens mount into the camera's

mount opening. Rotate the lens clockwise until it click-locks. For Nikon models, align the

lens attachment mark with the dot on the camera and rotate the lens counter-clockwise

until it click-locks.

How to detach the lens

Pressing the lens release button of the camera down, turn the lens counter-clockwise (clock-

wise in case on Nikon), and lift the lens off the camera's lens mount.

* For further details, please read the instruction manual of your camera.

FOCUSING (Autofocus) (Ref. Figs. 1 & 2)

Set the camera on the autofocus mode (AF). Press the shutter button lightly while viewing

through the camera's viewfinder, the lens focuses automatically. An in-focus mark will light

when lens focuses on the main subject sharply. Press the shutter button further to photo-

graph.

* Also, please read the camera's instruction booklet 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 and manual focus modes by the AF/MF mode selector

switch on the lens barrel.

* For further details, please read the instruction manual of your camera.

FOCUSING (Manual Focus) (Ref. Fig. 2)

Switch the focusing mode switch of the camera to manual focusing mode (MF) in

case of Nikon, Minolta, or Pentax camera. In case of Canon, switch to MF on the AF-MF alter-

ing switch on the lens barrel. Focus manually, rotating the focusing ring while viewing

through the camera's viewfinder. The main subject image in the viewfinder will be critically

sharp on the viewfinder screen as lens focuses rightly.

Press the shutter button lightly while operating the lens for focusing.The focus aid

mark in the viewfinder will light up when the subject is in critical focus.

Make sure the subject at infinity appears sharp in the finder when in focus. Because,

the infinity position on the lens is made with certain allowance to assure right focus under a

wide variety of photographing conditions.

* For further details, please read the instruction manual of your camera.

ATTACHING AND REMOVING THE LENS

How to mount the lens

Remove the rear cap of the lens. Align the lens attachment mark (15) on the lens barrel with

its counterpart on the camera mount and insert the lens. Rotate the lens clockwise until it

click-locks. For Nikon and Pentax models, align the lens attachment mark on the camera and

the lens attachment mark (15) on the lens to attach the lens. For Nikon models, align the

lens attachment mark with the dot on the camera and rotate the lens counter-clockwise

until it click-locks.

How to detach the lens

Pressing the lens release button on the camera down, turn the lens counter-clockwise (in

case of Nikon lens, clockwise), and lift the lens off the camera's lens mount.

The image circles of Di-II lenses are designed to match the digital SLR cameras using the image sen-

sors equivalent to APS-C (approx. 15.5 x 23.2mm). Do not use Di-II lenses with cameras using image sensors

larger than APS-C. Using Di-II lenses with such cameras may cause vignetting on the image.

Some Canon digital 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 mark for EF lenses (red). Do not forcibly align the indicator on the kens (15) with the

index mark for EF-S lens (white). Doing so could result in damage to the lens and/or camera.

For further details, please read the instruction manual of your camera.

FOCUSING (Autofocus) (Ref. Figs 1 & 2)

Switch the focusing mode switch of the camera to Auto focusing mode (AF) in case of

Nikon, Konica Minolta, or Pentax. In case of Canon camera, switch the AF/MF switch (14) on

the lens to AF. (Fig. 5). Press the shutter button lightly while viewing through the camera's

viewfinder, the lens focuses automatically. An in-focus mark will light when the lens focuses

on the main subject sharply. Press the shutter button further to photograph.

When set on AF mode, interfering with focusing ring (8) may cause serious damage to the lens

mechanism.

For further details, please read the instruction manual of your camera.

ZOOMING (Ref. Fig. 2)

Rotate zooming ring (9) of the lens while viewing through the camera's viewfinder and

compose your image at the chosen focal length.

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.

Stowing lens hood on the lens (Ref. Fig. 9)

1. Reverse the lens hood. Point the lens toward the opening, then align the hood attach-

ment mark on the lens with the (TAMRON O) alignment on the hood (3).

2. Turn the hood clockwise until its alignment mark is at the top to set it. (Fig. 9, 2)

PRECAUTIONS IN SHOOTING

The optical design for Di-II takes into consideration the various features of digital sin-

gle reflex cameras. However, due to the configuration of the digital SLR cameras, even when

the Autofocus accuracy is within specifications, the focal point may be a little forward or

behind the optimum point when shooting with auto focus under some conditions.

The image circles of Di-II lenses are designed to match the digital SLR cameras using

the image sensors equivalent to APS-C (approx. 15.5 x 23.2mm). Do not use Di-II lenses with

such cameras may cause vignetting on the image.

A13 employs an internal focusing (IF) system. Because of the characteristics of this

optical design, the angles of view at distances other than infinity are wider 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 bottom part of the image may be

observed, especially with wide angle ranges. 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. It is strongly recommended to use a suitable

separate flash unit provided by the camera manufacturer for all flash photography.

When using the lens in the telephoto focal range, please be careful with the camera

shake. Effective way to avoid the camera shake is using an ISO setting of higher numbers.

Using a tripod or monopod is also effective.

When set on AF mode, interfering with the focusing ring may cause serious damage

to the lens mechanism.

Certain camera models may indicate the maximum and minimum aperture values of

the lenses appropriate numbers.This is inherent to the design of the camera and not an

indication of error.

When using a special filter such as a PL filter on the A16, use low-profile filters. The

thick rim of a normal filter may cause vignetting.

TO ENSURE LONG-TERM SATISFACTION

Avoid touching the glass element surface. Use a photographic lens cloth or a blower

to remove dust from the lens element surface. When not using the lens, always place a lens

cap on it for protection.

Use a lens cleaning tissue or lint cloth with a drop of cleaning solution to remove fin-

gerprints or dirt on the glass lens surface with a rotary motion from the center to the edges.

Use a silicon cloth to clean your lens barrel only.

Mildew is an enemy of your lens. Clean the lens after shooting near water 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

occasionally. If you find mildew on your lens, consult an authorized repair shop or nearby

photographic store.

Do not touch the lens-camera interface contacts since dust, dirt and/or stains may

cause a contact failure between the lens and camera.

When using your equipment in an environment where the temperature changes from

one extreme to another, make sure to put your equipment temporarily in a case or a plastic

bag for a length of time in order for the equipment to go though a gradual temperature.

This will reduce potential equipment trouble.

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