How to Use a Lens Cap and Filter Kit for Protection

By Camix | Published: 2026-10-21

Category: How-to Guides

Learn how to combine a lens cap with a filter kit to shield your camera lens from dust, scratches, and impact. Step-by-step usage guide included.

Quick answer

Use a lens cap for daily storage and a filter kit like the Neewer 77mm set for on-lens protection during shooting. The cap blocks dust and bumps when the camera is off; the filter guards the front element while you shoot.

Why you need both a cap and a filter kit

A lens cap alone leaves your glass exposed the moment you start shooting. A filter kit—especially one with UV, CPL, and ND filters—lets you keep a protective layer on the lens while adjusting light and reflections. The trade-off is that stacking too many filters can cause vignetting on wide-angle lenses, so choose one filter per situation.

The Neewer 77mm Filter Set and Accessory Kit includes a UV filter for everyday protection, a CPL for glare reduction, and ND filters for controlling exposure. You can swap them based on the scene without removing the cap entirely.

Step-by-step: Using your lens cap and filter kit together

Step 1: Attach a UV filter for baseline protection: Screw the UV filter onto your lens when you start shooting. This keeps dust, moisture, and fingerprints off the actual lens glass. The UV filter is optically clear and doesn't affect exposure or color. Common mistake: Forgetting to clean the filter before attaching it—dirt trapped between the filter and lens can scratch the coating.
Step 2: Use the lens cap when the camera is stored or idle: Pop the lens cap on over the filter when you're not shooting. The cap provides a hard barrier against bumps and scratches that a filter alone can't stop. For the Neewer kit, the cap fits over the 77mm filter thread. Checkpoint: Always remove the cap before turning on the camera to avoid accidental shots with a black frame.
Step 3: Swap filters for specific conditions without removing the cap: When moving from bright sun (use ND4 or ND8) to a reflective scene (use CPL), unscrew the current filter, attach the new one, and replace the cap only when storing. The Neewer kit's threaded design makes swaps quick. Common mistake: Leaving the cap on while using a CPL—the cap blocks the rotating ring you need to adjust polarization.
Step 4: Store filters and caps in the kit case: After shooting, place each filter back into its padded slot in the Neewer accessory kit. Put the lens cap on the lens or store it in the case. This prevents scratches and keeps everything organized. Checkpoint: Never stack filters face-to-face without a protective divider—dust and abrasion can damage the coatings.

Product facts

Neewer 77MM (ND2-ND4-ND8-UV-CPL-FLD) Filter Set And Accessory Kit: The Neewer 77mm Filter Set includes UV, CPL, ND2, ND4, ND8, and FLD filters plus an accessory kit. It is in stock with a 1-year warranty and free UK delivery. This means you get a full range of protection and creative control in one kit, so you can leave a UV filter on for daily use and swap in the CPL or ND when needed.
Neewer 77MM (ND2-ND4-ND8-UV-CPL-FLD) Filter Set And Accessory Kit