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

49 mm Lens Filter Thread (M49 × 0.75) vs. 72 mm Lens Filter Thread (M72 × 0.75)

Comparing 2 standards across 6 specifications. 5 key differences identified.

Comparing:
49 mm Lens Filter Thread (M49 × 0.75)
72 mm Lens Filter Thread (M72 × 0.75)

The 49 mm Filter Thread (M49 × 0.75 mm metric pitch) is the compact mirrorless prime standard, popularized across Sony FE compact G primes (24mm, 40mm, 50mm f/2.5 G), the Sony Zeiss Sonnar 55mm f/1.8 ZA, and Fujifilm X100-series leaf-shutter street cameras (via AR-X100 adapter).

View full 49 mm Lens Filter Thread (M49 × 0.75) spec sheet →

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 →

Specification Comparison Table

6 Parameters
Parameter / Spec
Thread Diameter
49.0 mm (nominal ø49) 72.0 mm (nominal ø72)
Metric Thread Pitch
0.75 mm (M49 × 0.75) 0.75 mm (M72 × 0.75)
Notable Glass
Sony FE 55mm f/1.8 ZA, Sony FE 24mm f/2.8 G, Sony FE 40mm f/2.5 G, Sony FE 50mm f/2.5 G, Pentax SMC DA 35mm/70mm Limited 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
Compact Street Photography Standard
Fujifilm X100V / X100VI (requires 49mm filter adapter ring AR-X100 for weather sealing)
Thread Direction
Standard right-hand
Target Lenses
70-200mm f/4 telephotos, 24-120mm f/4, 35mm f/1.4 pro primes, 18-200mm superzooms