Comparisons / Comparison of Canon EF 50mm ƒ/1.8 STM and Pentax 70mm ƒ/2.4 Limited DA HD

Comparison of Canon EF 50mm ƒ/1.8 STM and Pentax 70mm ƒ/2.4 Limited DA HD [S]ave

Attribute
Canon EF 50mm ƒ/1.8 STM ×
Pentax 70mm ƒ/2.4 Limited DA HD ×
Filter Size (mm)4949
NotesCanon EF mountAvailable in black or silver; High-grade multi-layer HD (High Definition) coating; Rounder aperture blades should yield more pleasing bokeh.
Closest Focus (m)0.350.7
Magnification Ratio (x)0.210.12
TypeStandard PrimeTelephoto Prime
Length (mm)39.326
APS Equivalent80mm107mm
Diagonal Angle of View (degree)46.0023.00
Image Circle35mmAPS-C
Focal Length (mm)50.0070.00
BrandCanonPentax
NameCanon EF 50mm ƒ/1.8 STMPentax 70mm ƒ/2.4 Limited DA HD
Weight (g)159147
Aperture (f)1.80 - 22.002.40 - 22.00
Diaphragm Blades79
Diaphragm Blades Typecircularrounded
Lens Construction6 elements in 5 groups; Super Spectra Coating6 elements in 5 groups
Diameter (mm)69.263
Focus DetailsSTM stepper motor for smooth, near silent AF; full-time manualQuick-Shift Focus System



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