# item.guide
Side-by-Side Comparison Filter Threads

72 mm Lens Filter Thread (M72 × 0.75) vs. 77 mm Lens Filter Thread (M77 × 0.75)

Comparing 2 standards across 8 specifications. 7 key differences identified.

Comparing:
72 mm Lens Filter Thread (M72 × 0.75)
77 mm Lens Filter Thread (M77 × 0.75)

The 72 mm Filter Thread (M72 × 0.75 mm metric pitch) is an intermediate lens thread size widely used for telephoto f/4 zoom lenses (Canon/Nikon 70-200mm f/4), fast 35mm and 85mm f/1.4 primes, and versatile all-in-one enthusiast zooms (Nikon 24-120mm f/4, Sony FE 70-200mm f/4 G).

View full 72 mm Lens Filter Thread (M72 × 0.75) spec sheet →

The 77 mm Filter Thread (M77 × 0.75 mm metric pitch) is the legendary professional zoom lens standard across Canon L-series and Nikon pro glass for over three decades. Benchmark for 70-200mm f/2.8 telephoto zooms, older 24-70mm f/2.8 zooms, and 16-35mm f/4 ultra-wide zooms.

View full 77 mm Lens Filter Thread (M77 × 0.75) spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
Thread Diameter
72.0 mm (nominal ø72) 77.0 mm (nominal ø77)
Metric Thread Pitch
0.75 mm (M72 × 0.75) 0.75 mm (M77 × 0.75 standard fine metric pitch)
Thread Direction
Standard right-hand Standard right-hand (clockwise tighten onto front lens bezel)
Target Lenses
70-200mm f/4 telephotos, 24-120mm f/4, 35mm f/1.4 pro primes, 18-200mm superzooms
Notable Glass
Canon RF 24-240mm, Sony FE 70-200mm f/4 Macro G OSS II, Nikon Z 24-120mm f/4 S, Sigma 18-35mm f/1.8 DC HSM Art
Pro Glass Ubiquity
Standard for Canon EF 70-200mm f/2.8L, 24-105mm f/4L, Nikon AF-S 70-200mm f/2.8E FL, 24-70mm f/2.8G
Step-Up Ring Strategy
Buying 77mm or 82mm filters and using step-up rings (e.g. 67->77mm, 72->77mm) saves thousands on redundant filters
Vignetting Clearance
Standard slim filter frame depth: 3.5 to 5.0 mm (prevents mechanical vignetting at 16mm ultra-wide angles)