Pentax 100mm f/2.8 WR D FA smc Macro Lens Instruction Manual

1. Úvod

This manual provides essential information for the safe and effective use of your Pentax 100mm f/2.8 WR D FA smc Macro Lens. Please read it thoroughly before use and keep it for future reference.

The Pentax 100mm f/2.8 WR D FA smc Macro Lens is designed for 1:1 (1X) macro photography, allowing close-up imaging of subjects as near as 13cm. Its construction features a refined aluminum alloy body with a drip-proof design, ensuring durability and reliability. The lens is built to minimize ghosting and flare, delivering sharp images with high contrast across all shooting distances. A round iris diaphragm contributes to natural-looking background blur (bokeh).

2. Klíčové vlastnosti

• WR (Weather Resistant) Design: Ideal for use with compatible PENTAX weather-resistant DSLR camera bodies, offering protection against light rain or splashes.
• 1:1 Macro Magnification: Achieves a full 1:1 image magnification ratio (1X, Life Size) for detailed close-up photography. This lens is not zoomable.
• D FA Series Full-Frame Design: Compatible with PENTAX film and digital SLR cameras, optically optimized for digital imaging sensors.
• Rounded Aperture Blades: Improves bokeh quality at wide apertures, producing smooth background de-emphasis.
• PENTAX SP (Super Protect) Coating: Applied to the front lens element to repel dust, water, and grease, while also minimizing fingerprints for easier cleaning.

3. Co je v krabici

Ověřte, zda jsou v balení obsaženy všechny níže uvedené položky:

• Pentax 100mm f/2.8 WR D FA smc Macro Lens
• Přední krytka objektivu
• Zadní krytka objektivu
• Lens Hood PH-RBE49
• Lens case S80-120

Image: The Pentax 100mm f/2.8 WR D FA smc Macro Lens with its included lens hood attached, ready for use.

4. Nastavení

4.1 Nasazení objektivu

1. Ujistěte se, že je fotoaparát vypnutý.
2. Sejměte zadní krytku objektivu z objektivu a krytku těla z fotoaparátu.
3. Align the red mounting index mark on the lens with the corresponding mark on your camera body.
4. Insert the lens into the camera mount and turn it clockwise until it clicks into place. Do not force the lens.

4.2 Nasazení sluneční clony objektivu

The lens hood (PH-RBE49) helps to block extraneous light and protect the front element of the lens.

1. Zarovnejte značku na sluneční cloně objektivu se značkou na přední straně objektivu.
2. Turn the lens hood clockwise until it locks securely.

Image: The Pentax 100mm f/2.8 WR D FA smc Macro Lens, showing its compact design.

5. Návod k obsluze

5.1 Režimy ostření

This lens features a fixed focus design, optimized for macro photography.

• Automatické ostření (AF): Set your camera to AF mode. The lens will automatically focus on your subject. Note that for macro photography, autofocus may hunt or be slower due to the shallow depth of field and close working distances.
• Manuální ostření (MF): For precise control, especially in macro photography, switch your camera to MF mode. Rotate the focusing ring on the lens to achieve sharp focus. The long throw of the focusing ring allows for fine adjustments.

Obrázek: Detail view of the Pentax 100mm f/2.8 WR D FA smc Macro Lens, highlighting the focus distance scale and aperture markings.

5.2 Ovládání clony

The lens features a maximum aperture of f/2.8, allowing for good low-light performance and shallow depth of field. The rounded aperture blades contribute to pleasing background blur. Aperture is controlled via your camera body.

5.3 Macro Photography Tips

• Pracovní vzdálenost: The lens achieves 1:1 magnification at approximately 13cm from the front element to the subject.
• Hloubka ostrosti: At macro distances, depth of field is extremely shallow. Use smaller apertures (higher f-numbers) to increase the depth of field if needed.
• Osvětlení: Good lighting is crucial for macro photography. Consider using external flash or continuous lighting to illuminate your subject effectively.
• Stabilita: A tripod is highly recommended to ensure sharp images, especially at high magnifications and smaller apertures which require longer exposure times.

6. Údržba a péče

6.1 Čištění objektivu

The PENTAX SP (Super Protect) coating on the front element helps repel dust and water.

• Use a soft, clean lens cloth or a lens brush to remove dust.
• For smudges or fingerprints, apply a small amount of lens cleaning solution to a clean microfiber cloth and gently wipe the lens surface in a circular motion.
• Nikdy nepoužívejte abrazivní materiály ani agresivní chemikálie.

6.2 Skladování

• Pokud objektiv nepoužíváte, nasaďte přední i zadní krytku objektivu.
• Čočku skladujte na chladném a suchém místě, mimo dosah přímého slunečního záření a extrémních teplot.
• Neskladujte čočku v místech s vysokou vlhkostí, abyste zabránili růstu plísní.

7. Řešení problémů

7.1 Autofocus is slow or hunts excessively.

• Příčina: Macro photography inherently involves very shallow depth of field, which can challenge autofocus systems. Low light conditions can also affect AF performance.
• Řešení: Switch to manual focus (MF) for greater precision. Ensure adequate lighting for your subject. Consider using a tripod for stability.

7.2 Images appear soft or out of focus.

• Příčina: Camera shake, incorrect focus, or insufficient depth of field.
• Řešení: Use a tripod. Carefully verify focus, especially in manual mode. Increase the f-number (smaller aperture) to achieve greater depth of field. Ensure shutter speed is fast enough to prevent motion blur.

7.3 Dust or spots visible in images.

• Příčina: Dust on the front or rear lens element, or on the camera sensor.
• Řešení: Clean the lens elements carefully as described in the Maintenance section. If spots persist, clean your camera's image sensor according to your camera's instruction manual.

8. Specifikace

9. Záruka a podpora

9.1 Informace o záruce

This Pentax lens comes with a 1letá záruka výrobce. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, unauthorized repair, or normal wear and tear.

9.2 Zákaznická podpora

For technical assistance, service, or warranty inquiries, please contact Pentax customer support through their official webwebu nebo kontaktních informací uvedených na obalu produktu.

10. Další zdroje

For further information on advanced photography techniques or camera compatibility, please visit the official Pentax Store or consult your camera's instruction manual.

Image: A close-up shot of a dragonfly, demonstrating the macro capabilities of a Pentax lens.

Image: A Pentax lens with text 'Built for quality', highlighting the robust construction.