Product Overview

Keep your Pentax glass ready for action with the Objective Lens Cap for 42 Series Binoculars. Purpose-built for Pentax 42mm barrels (51.8–53.3mm outside diameter), it slips on snugly to shield your objectives from dust, rain and scratches when you’re on the move or packing away your kit.

Made from tough, flexible rubber, this lightweight cap stays attached to the binocular barrels while you’re glassing, so there’s no fumbling or lost covers when the action starts. Whether you’re glassing a distant ridgeline or tracking birds along the coast, it’s a simple, hard-wearing bit of insurance that keeps your optics in top nick and your view crystal clear.

Key Features

• Designed specifically for Pentax 42 Series binoculars, ensuring a precise fit that keeps your objective lenses securely covered.
• Fits barrels with an outside diameter of 51.8–53.3 mm, providing reliable protection for a wide range of 8x42, 10x42 and 12x42 models.
• Shields objective lenses from rain, dust and scratches, helping maintain clear, undamaged optics for sharper viewing.
• Durable, high-quality flexible rubber construction resists wear and tear, extending the life of both the cap and your binoculars.
• Snug, tight fit helps prevent the cap from accidentally coming off during transport or in the field.
• Easy to remove and attach, so you can quickly transition from storage to viewing without fumbling.
• Covers stay attached to the binocular barrel during use, reducing the risk of losing the caps while you’re on the move.
• Lightweight design adds virtually no extra bulk, making it ideal for hikers, birders and hunters who count every gram.
• Helps keep lenses clean between outings, reducing the need for frequent cleaning and lowering the risk of cleaning-related scratches.
• A practical, low-cost accessory that protects your investment in premium Pentax optics for years of dependable use.