Comparison of Pentax 50mm ƒ/1.8 SMC DA and Sony 85mm f/2.8 SAM SAL85F28

Attribute	Sony 85mm f/2.8 SAM SAL85F28 ×	Pentax 50mm ƒ/1.8 SMC DA ×
Filter Size (mm)	55	52
Aperture (f)	2.80 - 22.00	1.80 - 22.00
Closest Focus (m)	0.6	0.45
Magnification Ratio (x)	0.2	0.15
Type	Telephoto Prime	Tele Prime
Focus Details	Smooth Autofocus Motor (SAM)	Quick-shift Focus System for instant switching from auto to manual focus
APS Equivalent	127.5mm	76.5mm
Diameter (mm)	70	63
Image Circle	35mm	APS-C
Focal Length (mm)	85.00	50.00
Brand	Sony	Pentax
Name	Sony 85mm f/2.8 SAM SAL85F28	Pentax 50mm ƒ/1.8 SMC DA
Weight (g)	175	122
Diaphragm Blades Type	-	rounded
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	29.00	31.50
Length (mm)	52	38.5
Notes	Sony Alpha SLR Mount. Included Accessories: Lens Hood	-
Lens Construction	5 elements in 4 groups	6 elements in 5 groups; Front surface has SP (Super Protect) coating