Comparison of Panasonic 25mm f/1.4 ASPH Leica D SUMMILUX and Samyang/Rokinon 35mm ƒ/1.4 Aspherical UMC

Attribute	Samyang/Rokinon 35mm ƒ/1.4 Aspherical UMC ×	Panasonic 25mm f/1.4 ASPH Leica D SUMMILUX ×
Aperture (f)	1.40 - 22.00	1.40 - 16.00
Diagonal Angle of View (degree)	63.40	46.00
Filter Size (mm)	77	62
Notes	Available Lens Mounts: Canon, Nikon, Pentax, Samsung NX, Sony A, Four Thirds; Included Accessories: lens cap, lens case.	Additional features: Aperture ring; Included accessories: Lens hood, storage bag
Type	Wide Prime	Standard Prime
Magnification Ratio (x)	-	0.18
Diaphragm Blades	8	7
APS Equivalent	1.5x: 52.5mm; 1.6x: 56mm	-
Image Circle	35mm	Four-Thirds
Focal Length (mm)	35.00	25.00
Brand	Samyangrokinon	Panasonic
Name	Samyang/Rokinon 35mm ƒ/1.4 Aspherical UMC	Panasonic 25mm f/1.4 ASPH Leica D SUMMILUX
Weight (g)	731	525
Diameter (mm)	83	77.7
Lens Construction	12 elements in 10 groups, including 1 aspherical element	10 elements in 9 groups, including 1 aspherical, 1 Super ED and 3 ED elements
35mm Equivalent	-	50mm
Length (mm)	111	75
Focus Details	Manual focus only; Internal	-
Closest Focus (m)	0.3	0.38