Comparison of Panasonic 16-35mm f/4 Lumix S Pro (S-R1635) and Sony FE 16-35mm f/4 ZA OSS Zeiss Vario-Tessar T* SEL1635Z

Attribute	Panasonic 16-35mm f/4 Lumix S Pro (S-R1635) ×	Sony FE 16-35mm f/4 ZA OSS Zeiss Vario-Tessar T* SEL1635Z ×
Aperture (f)	4.00 - 22.00	4.00 - 22.00
Filter Size (mm)	77	72
Notes	Splash- and dust-resistant. Included Accessories: front and rear lens caps, lens hood, storage bag.	Sony E-mount; Image Stabilized; Dust and moisture resistant; Included Accessories: Lens hood, carrying case
Closest Focus (m)	0.25	0.28
Magnification Ratio (x)	0.23	0.19
Zoom System	Rotary	Rotary
Type	Wide Zoom	Wide Zoom
APS Equivalent	24 - 52.5mm	24 - 52.5mm
Diaphragm Blades	9	7
Image Circle	35mm (L-Mount)	35mm (Full-frame E-Mount)
Focal Length (mm)	16.00 - 35.00	16.00 - 35.00
Brand	Panasonic	Sony
Name	Panasonic 16-35mm f/4 Lumix S Pro (S-R1635)	Sony FE 16-35mm f/4 ZA OSS Zeiss Vario-Tessar T* SEL1635Z
Weight (g)	500	518
Diaphragm Blades Type	circular	circular
Lens Construction	12 elements in 9 groups, including 1 UHR (Ultra-High Refractive Index), 1 ED and 3 aspherical elements; Fluorine coating on front element.	12 elements in 10 groups, including 3 ED and 5 aspherical elements
Diagonal Angle of View (degree)	63.00 - 107.00	63.00 - 107.00
Length (mm)	99.6	98.5
Diameter (mm)	85	78
Focus Details	Internal with double-magnet linear motor; AF/MF clutch mechanism	Internal; SSM (Super Sonic wave Motor) with Focus Hold button and Auto Clutch