Sigma 24mm f/1.4 DG HSM Art Lens (Model 401954) Instruction Manual

పరిచయం

Thank you for choosing the Sigma 24mm f/1.4 DG HSM Art Lens. This high-performance wide-angle prime lens is designed to deliver exceptional optical quality, making it suitable for a wide range of photographic applications, including landscape, architecture, and astrophotography. This manual provides essential information for the proper use, care, and maintenance of your lens.

ఉత్పత్తి ముగిసిందిview

The Sigma 24mm f/1.4 DG HSM Art Lens is part of Sigma's Global Vision Art line, known for its sophisticated optical design and high-level performance. Key features include:

• Large Aperture: A bright f/1.4 maximum aperture excels in low-light conditions and provides extensive control over depth of field.
• అధునాతన ఆప్టికల్ డిజైన్: Incorporates FLD and SLD glass elements to minimize chromatic aberrations and distortions, ensuring high sharpness and clarity.
• Hyper Sonic Motor (HSM): Provides fast, quiet, and accurate autofocus performance.
• Super Multi-Layer Coating: Reduces flare and ghosting for improved contrast and color fidelity.
• కనీస దృష్టి దూరం: Capable of focusing as close as 7.1 inches (18 cm) for dynamic close-up shots.

మూర్తి 1: ముందు view of the Sigma 24mm f/1.4 DG HSM Art Lens with its included lens hood.

సెటప్

మీ కెమెరాకు లెన్స్‌ను అటాచ్ చేయడం

1. Ensure both the camera and lens are clean and free of dust.
2. Align the mounting index (red dot or white square) on the lens barrel with the corresponding index on your Canon EF mount camera body.
3. Rotate the lens clockwise until it clicks securely into place. Do not force the lens.

లెన్స్‌ను వేరు చేయడం

1. While holding down the lens release button on your camera body, rotate the lens counter-clockwise until it stops.
2. కెమెరా బాడీ నుండి లెన్స్‌ను జాగ్రత్తగా తొలగించండి.
3. Attach the front and rear lens caps to protect the glass elements.

మూర్తి 2: వైపు view of the lens, highlighting the AF/MF focus mode switch.

లెన్స్‌ను ఆపరేట్ చేయడం

ఫోకస్ మోడ్ స్విచ్ (AF/MF)

The lens features an AF/MF switch on its barrel. This switch allows you to select between autofocus (AF) and manual focus (MF) modes.

• AF (ఆటో ఫోకస్): For automatic focusing. The Hyper Sonic Motor (HSM) provides fast and quiet operation.
• MF (మాన్యువల్ ఫోకస్): For manual focusing. Rotate the focus ring to adjust focus. This mode is often preferred for precise focusing in specialized applications like astrophotography.

ఎపర్చరు నియంత్రణ

The aperture (f/1.4 to f/16) is controlled via your camera body. A wider aperture (smaller f-number) allows more light into the lens, ideal for low-light photography and creating shallow depth of field with pleasing background blur (bokeh). A narrower aperture (larger f-number) increases depth of field, suitable for landscapes.

Astrophotography Considerations

This lens is highly regarded for astrophotography due to its wide 24mm focal length and fast f/1.4 aperture. When shooting stars or the Milky Way:

• Set the lens to MF (Manual Focus).
• Focus to infinity. It is recommended to use your camera's Live View mode and zoom in on a bright star to achieve precise focus.
• Consider using a star tracker for longer exposures to prevent star trails.

మూర్తి 3: టాప్ view of the lens, showing the focus distance scale in feet and meters.

నిర్వహణ

లెన్స్ శుభ్రపరచడం

• Use a soft, lint-free cloth or a lens brush to remove dust from the lens surface.
• For stubborn smudges, apply a small amount of lens cleaning solution to a microfiber cloth and gently wipe the lens in a circular motion.
• Never use abrasive materials or harsh chemicals.

నిల్వ

• లెన్స్ ఉపయోగంలో లేనప్పుడు ఎల్లప్పుడూ ముందు మరియు వెనుక లెన్స్ మూతలను అటాచ్ చేయండి.
• లెన్స్‌ను చల్లని, పొడి ప్రదేశంలో, ప్రత్యక్ష సూర్యకాంతి మరియు తీవ్రమైన ఉష్ణోగ్రతలకు దూరంగా నిల్వ చేయండి.
• ఎక్కువ కాలం నిల్వ చేస్తే, బూజు పెరుగుదలను నివారించడానికి డీహ్యూమిడిఫైయింగ్ ఏజెంట్‌ను ఉపయోగించడాన్ని పరిగణించండి.

ట్రబుల్షూటింగ్

ఆటో ఫోకస్ సమస్యలు

If you experience inconsistent or inaccurate autofocus, consider the following:

• ఫర్మ్వేర్ నవీకరణ: Sigma periodically releases firmware updates to improve lens performance. It is highly recommended to keep your lens firmware up to date. This often requires the Sigma USB Dock (sold separately) and Sigma Optimization Pro software.
• ఫోకస్ క్రమాంకనం: Some camera bodies allow for in-camera micro-adjustment of autofocus. If you have a Sigma USB Dock, you can perform more precise calibration for different focus distances.
• లైటింగ్ పరిస్థితులు: Autofocus performance can be affected by very low light or subjects with low contrast. Switch to manual focus if necessary.

చిత్రం నాణ్యత ఆందోళనలు

If images appear soft or lack expected sharpness:

• ఫోకస్ తనిఖీ చేయండి: Ensure your subject is in sharp focus. In manual focus, verify using Live View మాగ్నిఫికేషన్.
• ఎపర్చరు: While the lens performs well wide open, stopping down by one or two stops (e.g., from f/1.4 to f/2.0 or f/2.8) can sometimes improve corner sharpness.
• కెమెరా షేక్: Use a tripod or faster shutter speed to avoid blur from camera movement.

స్పెసిఫికేషన్లు

వారంటీ మరియు మద్దతు

This Sigma lens is covered by a manufacturer's warranty. For specific warranty terms, registration, and support, please refer to the official Sigma website or contact Sigma customer service directly. Keep your proof of purchase for warranty claims.

For technical assistance, firmware updates, or service, please visit the Sigma Global Vision webసైట్ or consult your local authorized Sigma dealer.