Comparison of Pentax 3.8-5.9mm f/3.7-4 08 Wide Zoom and Samsung 10mm f/3.5 Fisheye NX i-Function

Attribute	Samsung 10mm f/3.5 Fisheye NX i-Function ×	Pentax 3.8-5.9mm f/3.7-4 08 Wide Zoom ×
Diagonal Angle of View (degree)	180.00	77.00 - 102.00
Notes	Samsung NX-mount; i-Scene (Night, Portrait, Beauty shot, Children, Backlight, Sports); Available in black or white.	For use with Pentax Q compact system camera. PENTAX SP (Super Protect) coating. Optional PH-RBF49 lens hood.
Aperture (f)	3.50 - 22.00	3.70 - 8.00
Magnification Ratio (x)	0.22	0.03
Filter Size (mm)	-	49
Diaphragm Blades	7	-
Type	Fisheye Prime	Wide Zoom
APS Equivalent	15.4mm	Q, Q10: 21 - 32.5mmQ7: 17.5 - 27mm
Lens Construction	7 elements in 5 groups, including 1 aspherical element	10 elements in 8 groups
Image Circle	Samsung NX (APS-C)	Pentax Q-mount
Focal Length (mm)	10.00	3.80 - 5.90
Brand	Samsung	Pentax
Name	Samsung 10mm f/3.5 Fisheye NX i-Function	Pentax 3.8-5.9mm f/3.7-4 08 Wide Zoom
Weight (g)	71	75
Zoom System	-	Rotary
Length (mm)	26.3	38
Diameter (mm)	58.8	54
Closest Focus (m)	0.09	0.25
Diaphragm Blades Type	circular	-
Focus Details	Silent Autofocus	Inner focusing with STM (stepper motor)