Comparison of Pentax 50mm ƒ/1.8 SMC DA and Pentax 70mm ƒ/2.4 Limited DA HD

Attribute	Pentax 50mm ƒ/1.8 SMC DA ×	Pentax 70mm ƒ/2.4 Limited DA HD ×
Filter Size (mm)	52	49
Aperture (f)	1.80 - 22.00	2.40 - 22.00
Closest Focus (m)	0.45	0.7
Magnification Ratio (x)	0.15	0.12
Type	Tele Prime	Telephoto Prime
Focus Details	Quick-shift Focus System for instant switching from auto to manual focus	Quick-Shift Focus System
APS Equivalent	76.5mm	107mm
Diameter (mm)	63	63
Image Circle	APS-C	APS-C
Focal Length (mm)	50.00	70.00
Brand	Pentax	Pentax
Name	Pentax 50mm ƒ/1.8 SMC DA	Pentax 70mm ƒ/2.4 Limited DA HD
Weight (g)	122	147
Diaphragm Blades Type	rounded	rounded
Diaphragm Blades	7	9
Diagonal Angle of View (degree)	31.50	23.00
Length (mm)	38.5	26
Notes	-	Available in black or silver; High-grade multi-layer HD (High Definition) coating; Rounder aperture blades should yield more pleasing bokeh.
Lens Construction	6 elements in 5 groups; Front surface has SP (Super Protect) coating	6 elements in 5 groups