Sigma 28-70mm F2.8 EX Aspherical Lens for Canon-AF Camera User Manual

Увод

This manual provides essential instructions for the proper use and care of your Sigma 28-70mm F2.8 EX Aspherical Lens, designed specifically for Canon-AF SLR cameras. This lens offers a versatile focal range and a constant f/2.8 maximum aperture, making it suitable for various photographic situations. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity.

Figure 1: Sigma 28-70mm F2.8 EX Aspherical Lens. This image illustrates the overall appearance of the lens.

Сетуп

Причвршћивање сочива

1. Ensure both the camera and the lens are clean and free of dust.
2. Уклоните задњи поклопац објектива са објектива и поклопац тела са фотоапарата.
3. Align the mounting index (usually a red dot or white line) on the lens barrel with the corresponding index on the camera body.
4. Insert the lens into the camera's lens mount and rotate it clockwise until it clicks into place. Do not force the lens.

Figure 2: Illustrative image of a lens being attached to a camera body. Ensure alignment marks are matched before rotating.

Уклањање сочива

1. Искључите камеру.
2. Док држите притиском дугме за отпуштање објектива на кућишту фотоапарата, окрећите објектив у смеру супротном од казаљке на сату док се не заустави.
3. Пажљиво уклоните објектив са носача камере.
4. Причврстите задњи поклопац објектива на објектив и поклопац тела на фотоапарат да бисте заштитили сензор и елементе објектива.

Руковање објективом

Фокусирање

This lens supports both autofocus (AF) and manual focus (MF). The focus mode switch is located on the side of the lens barrel.

• Аутофокус (AF): Set the switch to 'AF'. The camera will automatically focus when the shutter button is half-pressed.
• Ручно фокусирање (MF): Set the switch to 'MF'. Rotate the focus ring on the lens barrel to achieve sharp focus. Use the camera's viewfinder or LCD screen to assist with focusing.

The minimum focusing distance for this lens is 15.7 inches (approximately 40 cm) across all focal lengths.

Зумирање

To change the focal length, rotate the zoom ring on the lens barrel. The lens offers a focal range from 28mm (wide-angle) to 70mm (short telephoto). The current focal length is indicated by markings on the lens barrel.

Figure 3: Illustrative image showing the location of the focus and zoom rings on the lens barrel.

Kontrola blende

This lens features a constant maximum aperture of F2.8 throughout its zoom range. Aperture settings are controlled via the camera body. Refer to your camera's instruction manual for details on adjusting aperture.

Коришћење филтера

The lens incorporates helical focusing, which means the front lens barrel does not rotate during focusing. This design is convenient for using polarizing filters or other filters that require precise orientation.

Одржавање

Чишћење сочива

• Користите четкицу за дување да бисте уклонили прашину и растресите честице са површина сочива.
• For smudges or fingerprints, apply a small amount of lens cleaning solution to a clean microfiber cloth and gently wipe the lens in a circular motion from the center outwards.
• Never use abrasive materials, solvents, or household cleaners on the lens.

Складиштење

• Увек ставите предњи и задњи поклопац објектива када се објектив не користи.
• Чувајте сочиво на хладном и сувом месту, даље од директне сунчеве светлости и екстремних температура.
• Ако складиштите дуже време, размислите о употреби средства за одвлаживање како бисте спречили раст буђи.

Решавање проблема

• Камера не препознаје објектив: Ensure the lens is securely attached and clicked into place. Turn the camera off and on again. Clean the electrical contacts on both the lens and camera body with a clean, dry cloth.
• Аутофокус не ради: Check if the lens is set to 'AF' mode. Ensure there is sufficient light and contrast in the scene for the camera's autofocus system to operate effectively.
• Слике су мутне: Verify that the lens is properly focused. Check the camera's shutter speed to ensure it's fast enough to prevent motion blur, especially in low light or with moving subjects. Ensure the lens elements are clean.

If problems persist, consult your camera's manual or contact Sigma customer support.

Спецификације

Гаранција и подршка

For information regarding warranty coverage, service, or technical support, please refer to the warranty card included with your product or visit the official Sigma Corporation of America webсајт. Сачувајте рачун као доказ о куповини за потребе гаранције.

Произвођач: Сигма корпорација Америке