Pentax SMC DA* 55mm f/1.4 SDM Prime Standard Lens Instruction Manual

Introduction

This manual provides essential information for the proper use and care of your Pentax SMC DA* 55mm f/1.4 SDM Prime Standard Lens. This high-performance lens is designed for Pentax Digital SLR Cameras, offering exceptional image quality with its advanced optical elements and coatings. It features a fast f/1.4 aperture, weather-resistant construction, and a Supersonic Direct-drive Motor (SDM) for quiet and precise autofocus.

Installation

Fixation de l'objectif

1. Assurez-vous que l'appareil photo et l'objectif sont éteints.
2. Retirez le capuchon arrière de l’objectif et le capuchon du boîtier de l’appareil photo.
3. Align the red mounting index mark on the lens barrel with the corresponding mark on the camera body.
4. Insérez l'objectif dans la monture de l'appareil photo et tournez-le dans le sens horaire jusqu'à ce qu'il s'enclenche. Ne forcez pas l'objectif.

Détacher l'objectif

1. Assurez-vous que la caméra est éteinte.
2. Tout en maintenant enfoncé le bouton de déverrouillage de l'objectif sur le boîtier de l'appareil photo, faites tourner l'objectif dans le sens antihoraire jusqu'à ce qu'il s'arrête.
3. Retirez délicatement l'objectif du boîtier de l'appareil photo.
4. Fixez le bouchon arrière de l'objectif à l'objectif et le bouchon du boîtier à l'appareil photo pour les protéger de la poussière et des dommages.

Attaching the Lens Hood and Cap

The PH-RBH lens hood is designed to reduce flare and protect the front element. Align the hood with the front of the lens and twist until it locks securely. The O-LC58 objective cap protects the front element when the lens is not in use.

Image : inclinée view of the Pentax SMC DA* 55mm f/1.4 SDM lens, showing the focus ring, AF/MF switch, and distance scale.

Utilisation de l'objectif

Se concentrer

• Mise au point automatique (AF) : Set the AF/MF switch on the lens to 'AF'. The lens utilizes a Supersonic Direct-drive Motor (SDM) for quiet and fast autofocus.
• Mise au point manuelle (MF) : Set the AF/MF switch on the lens to 'MF'. Rotate the focus ring to adjust focus manually.
• Quick-Shift Focus System: This system allows for instant switching between autofocus and manual focus without changing the AF/MF switch position on the lens, provided the camera body supports this feature. After autofocus has locked, you can fine-tune focus manually by rotating the focus ring.

Contrôle d'ouverture

The lens features a fast maximum aperture of f/1.4, allowing for excellent low-light performance and shallow depth-of-field effects. The aperture can be stopped down to f/22. The 9 rounded diaphragm blades contribute to a smooth, circular bokeh (background blur) at wider apertures. Aperture control is fully automatic and managed through the camera body.

Construction résistante aux intempéries

The lens is equipped with a water- and dust-resistant seal, providing reliable operation in challenging environmental conditions. While resistant, it is not waterproof; avoid submerging the lens in water.

Image : Avant view of the Pentax SMC DA* 55mm f/1.4 SDM lens, highlighting the distance scale and AF/MF switch.

Entretien

Nettoyage de l'objectif

• Éléments de lentille : The objective lens surface is treated with Pentax's Super Protect (SP) coating, a fluorine compound that repels dust, water, and grease. For cleaning, use a soft, clean lens cloth. For stubborn smudges, use a specialized lens cleaning solution applied to the cloth, not directly to the lens.
• Corps de l'objectif : Essuyez le corps de l'objectif avec un chiffon doux et sec. N'utilisez pas de solvants organiques comme le diluant à peinture ou le benzène.
• Poussière: Utilisez une brosse soufflante pour enlever la poussière de la surface de la lentille.

Stockage

Lorsqu'elle n'est pas utilisée, rangez l'objectif avec ses capuchons avant et arrière en place, dans un endroit frais et sec, à l'abri de la lumière directe du soleil et des températures extrêmes. Évitez de le ranger dans des endroits très humides afin de prévenir la formation de moisissures.

Dépannage

• La mise au point automatique est lente ou imprécise :

  Ensure the AF/MF switch on the lens is set to 'AF' and the camera body is also set to autofocus. Check lighting conditions; very low light can affect AF performance. If issues persist, try cleaning the lens and camera contacts. Some users have reported inconsistent SDM performance; if this occurs, contact Pentax customer support.
• Image quality is soft or blurry:

  Verify that the lens is properly focused. Check your camera's shutter speed to avoid motion blur, especially in low light. Ensure the aperture setting is appropriate for your desired depth of field. Clean lens elements if smudges are present. If softness persists across all settings, the lens may require servicing.

• Objectif non reconnu par l'appareil photo :

  Ensure the lens is securely mounted to the camera body. Clean the electronic contacts on both the lens mount and camera body with a clean, dry cloth. Power cycle the camera.

Caractéristiques

Garantie et assistance

This Pentax lens typically comes with a garantie limitée d'un an from the date of purchase. Please refer to the warranty card included with your product for specific terms and conditions. For technical support, service, or warranty claims, please contact Pentax customer service or visit the official Pentax website for your region. Keep your proof of purchase for warranty validation.