Objective Cover 45 mm 2 pcs — Focus Optics

Objective Cover 45 mm 2 pcs by Focus Optics is a pair of protective caps designed to fit optical objectives with a 45 mm front diameter. These push-on covers shield the front element from dust, scratches and light contamination while instruments are stored or transported. The simple, low-profile design allows quick attachment and removal without tools and is compatible with objectives that have a 45 mm rim or thread diameter.

Advantages

The covers are lightweight and durable, providing reliable mechanical protection for delicate lens surfaces. Their push-fit construction ensures a secure hold while remaining easy to remove when the objective is needed. Made to fit standard 45 mm objective rims, the set of two allows simultaneous protection of multiple optics or a spare cap for field use.

Suitable for

• Microscope objectives and laboratory optics with 45 mm front diameter
• Field optics and portable instruments requiring removable front caps
• Storage and transport of optical equipment to prevent dust and scratches
• Workshops and service benches where temporary protection of lens elements is needed

Key specifications

• Quantity: 2 pieces per set
• Intended front diameter: 45 mm fit for rims or threads of corresponding size
• Attachment type: push-on / snap-fit
• Material: impact-resistant protective plastic
• Finish: matte surface to reduce reflections

How to use

Align the cover with the objective's front rim and press gently until the cap snaps into place. To remove, hold the objective securely and pull the cover straight off to avoid contact with the lens surface. Clean the covers periodically with a soft cloth to remove dust and avoid transferring particles to the objective. When not in use, store the spare cap in a clean, dry compartment to keep it free of contaminants.

Usage recommendations

Use the covers whenever optics are transported or stored for extended periods. Avoid exposing the caps to solvents or high temperatures; inspect and clean both covers and objective surfaces before mounting to prevent abrasion from trapped particles.