Comparison of Carl Zeiss 100mm f/2 Makro-Planar T* 2/100 and Pentax SMC P-FA 85mm f/1.4 IF

Attribute	Carl Zeiss 100mm f/2 Makro-Planar T* 2/100 ×	Pentax SMC P-FA 85mm f/1.4 IF ×
Notes	Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK). Nikon ZF.2 version includes CPU interface for autoexposure	Included Accessories: Hood
Magnification Ratio (x)	0.5	0.1
Filter Size (mm)	67	67
Focus Details	Manual focus only	Internal
Closest Focus (m)	0.44	0.85
Lens Construction	9 elements in 8 groups	8 elements in 7 groups
Length (mm)	89	71
Focal Length (mm)	97.50	85.00
APS Equivalent	1.5x: 146.3mm	127.5mm
Brand	Carl-zeiss	Pentax
Image Circle	35mm	35mm
Name	Carl Zeiss 100mm f/2 Makro-Planar T* 2/100	Pentax SMC P-FA 85mm f/1.4 IF
Weight (g)	680	618
Type	Telephoto Prime, Macro	Telephoto Prime
Aperture (f)	2.00 - 22.00	1.40 - 22.00
Diaphragm Blades	9	-
Diagonal Angle of View (degree)	25.00	28.50
Diameter (mm)	76	79