Sony ALC-F77S 77mm Front Lens Cap

Sony
Product # SYL1053MFR #ALCF77S
Sony
Product # SYL1053MFR #ALCF77S
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Sony ALC-F77S 77mm Front Lens Cap
Sony ALC-F77S 77mm Front Lens Cap 0
Sony ALC-F77S 77mm Front Lens Cap 1
In Stock
Pickup at Fairfield & Philadelphia
$13.99

Key Features

  • Genuine Sony 77mm front lens cap designed to protect the front element from dust, fingerprints, and scratches
  • Center-pinch design allows easy attachment and removal, even when a lens hood is in place
  • Fits lenses and filters with a 77mm front thread size
  • Lightweight, low-profile construction for everyday carry and dependable lens protection
  • Ideal replacement or backup cap for compatible Sony and other 77mm lenses
In Stock
Pickup at Fairfield & Philadelphia
$13.99
Have any questions?1-800-631-0300

OVERVIEW

The Sony ALC-F77S 77mm Front Lens Cap is a genuine Sony lens accessory made to protect the front element of your lens when it is not in use. A front lens cap is one of the simplest but most important accessories in any camera kit, helping shield your lens from dust, smudges, moisture, and accidental contact that can affect image quality or require frequent cleaning. This cap is sized for lenses with a 77mm front filter thread and is an excellent match for photographers and videographers who want an original replacement or a spare cap for travel and field use.

Compatible With

  • Sony lenses with a 77mm front filter thread
  • Any lens or protective filter with a 77mm front thread

Key Features

The ALC-F77S uses a center-pinch design that makes it easy to install and remove. This style is especially convenient when a lens hood is attached, since you can pinch the middle tabs without needing to reach around the edge of the cap. The cap sits securely on the front of the lens to help prevent accidental removal during transport while still allowing quick access when it is time to shoot.

Why a Genuine Sony Lens Cap Matters

Choosing an original Sony lens cap helps ensure a proper fit and reliable retention on compatible Sony lenses. While many third-party caps exist, an OEM cap is often preferred by users who want factory-matched fit, finish, and branding. It is also a practical choice if you have misplaced the original cap that came with your lens and want a like-for-like replacement.

Protection Benefits

The front element of a lens is constantly exposed during use and transport. Even minor contact with keys, zippers, dust, or fingerprints can lead to unnecessary cleaning and added risk over time. The Sony ALC-F77S provides a simple physical barrier that helps preserve the lens coating and keeps the glass cleaner between shooting sessions. It is particularly useful for travel, storage, event coverage, outdoor photography, and daily commuting with gear.

77mm Size and Lens Compatibility

This model is specifically made for 77mm lens fronts. The 77mm measurement refers to the filter thread diameter, not the focal length of the lens. Many premium standard zooms, telephoto zooms, and fast prime lenses use the 77mm size, making this cap a common and useful accessory in many camera bags. If your lens or mounted filter is marked with a ø77 or 77mm thread size, this cap is the correct size.

Ease of Use in the Field

Photographers often remove and replace lens caps dozens of times in a day. The center-pinch layout of the ALC-F77S is designed for quick one-handed operation and is particularly helpful when working fast at weddings, sports, travel assignments, street photography, and video shoots. Because it is compact and lightweight, it adds virtually no bulk while offering meaningful protection.

Recommended Accessories

For even better lens protection, pair this front cap with a 77mm clear or UV protective filter so the filter takes the brunt of dust and cleaning instead of the lens itself. A rear lens cap is also essential when storing detached lenses. Lens pouches, padded camera bags, and lens cleaning tools such as microfiber cloths and air blowers can help round out a protection-focused kit.

Usage Tips

  • Confirm that your lens or filter thread is marked 77mm before ordering
  • Use the center tabs to attach or remove the cap more easily with a lens hood installed
  • Keep a spare cap in your camera bag in case the original is misplaced during travel or shooting
  • For best protection, use the cap whenever the camera is not actively in use
  • Consider attaching the cap to a lens stored with a protective filter for added front-element security

Build and Design

The Sony ALC-F77S features a practical molded design built for regular daily handling. Its low-profile shape keeps packing simple, while the secure fit helps it stay in place during storage and transport. The understated black finish complements most modern lenses and camera systems.

Who It Is For

This lens cap is ideal for Sony users replacing a lost original, photographers who want an extra cap in a second bag, and any camera owner using a lens or front-mounted filter with a 77mm diameter. It is a small but essential accessory that helps protect your investment and keep your equipment ready for the next shoot.
$13.99