Comparison of Samsung 50-200mm f/4-5.6 ED OIS III NX and Vivitar 28-300mm f/4-6.3 Series 1 AF

Attribute	Vivitar 28-300mm f/4-6.3 Series 1 AF ×	Samsung 50-200mm f/4-5.6 ED OIS III NX ×
Filter Size (mm)	77	52
Closest Focus (m)	1.9	0.98
Magnification Ratio (x)	0.18	0.2
Length (mm)	122	100.5
Front Element Rotation	-	-
Diagonal Angle of View (degree)	8.20 - 75.00	8.00 - 31.40
Focus Details	AF/MF switch	AF/MF switch
Focal Length (mm)	28.00 - 300.00	50.00 - 200.00
APS Equivalent	1.5x: 42 - 450mm; 1.6x: 44.8 - 480mm	77 - 308mm
Brand	Vivitar	Samsung
Image Circle	35mm	Samsung NX (APS-C)
Name	Vivitar 28-300mm f/4-6.3 Series 1 AF	Samsung 50-200mm f/4-5.6 ED OIS III NX
Weight (g)	570	406
Type	Standard Zoom	Telephoto Zoom
Notes	Available AF mounts: Canon, Minolta, Nikon	Samsung NX Mount. Image Stabilization. Included Accessories: Lens Hood
Diaphragm Blades	-	7
Aperture (f)	4.00 - 16.00	4.00 - 22.00
Lens Construction	17 elements in 15 groups	17 elements in 13 groups, including 2 ED elements
Zoom System	Push-Pull	Rotary
Diameter (mm)	80	70