NiSi

NiSi 112215 77mm Metal Stack Caps for Lens Filters

4.2 (13 reviews)

Durable aluminum stack caps that let you screw-stack and protect multiple 77mm lens filters in one compact bundle.

$17.59*$21.99Save 20%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The NiSi 112215 Metal Stack Caps are a straightforward solution to a common photographer's problem: how to store and transport circular lens filters without leaving them loose in a bag where they can pick up dust, fingerprints, and scratches. The set includes two machined aluminum caps — one that threads onto the top of a filter stack and one for the bottom — effectively turning any number of screw-together 77mm filters into a single, self-contained unit.

Because the caps use standard 77mm threading, they work with filters from any manufacturer, not just NiSi. The aluminum construction provides a meaningful upgrade over the plastic caps that ship with most individual filters, offering better impact resistance and a more secure thread engagement. For photographers who carry several ND, polarizer, or color filters on location, these stack caps simplify packing and reduce the number of individual cases needed in a kit.

Key Features

Set of top and bottom durable metal caps to fit filters with 77mm front and back threading

Aluminum metal construction offers protection to filter surfaces

protect the filters from dust, scratches and fingerprints while not in use

Simply screw your filters together then screw the stack caps on the top and bottom

Enable a more organized, streamlined system for storing and carrying your filters

Specifications

Brand
NiSi
Model
112215
Filter Size
77mm
Material
Aluminum
Compatibility
Filters with 77mm front and back threading
Package Contents
1 top cap, 1 bottom cap

Pros & Cons

👍 Pros

  • Aluminum construction is more durable and scratch-resistant than plastic filter caps
  • Threaded design holds multiple filters together as a single organized unit
  • Compatible with any standard 77mm-threaded circular filter regardless of brand
  • Lightweight and compact enough to slip into a filter pouch or camera bag pocket
  • Protects both sides of the stack from dust, fingerprints, and surface scratches

👎 Cons

  • Only fits 77mm-threaded filters, so you need separate caps for other filter sizes
  • Does not include a carrying case or pouch for the stacked filters
  • Two-cap set means you can only protect one stack at a time
  • Metal threads can cross-thread if not aligned carefully when screwing on

Frequently Asked Questions

There is no fixed limit — you can screw as many 77mm-threaded filters together as you like, then secure the top and bottom with the two included caps.
Yes, they are compatible with any circular filter that has standard 77mm front and back threading, regardless of brand.
The set includes two aluminum caps — one for the top of the stack and one for the bottom.
No, each cap is a thin aluminum disc that adds minimal size and weight, keeping the stack compact for storage or travel.