Comparison of Nikon Z 50-250mm f/4.5-6.3 VR DX Nikkor and Pentax 55-300mm f/4-5.8 ED WR HD DA

Attribute	Pentax 55-300mm f/4-5.8 ED WR HD DA ×	Nikon Z 50-250mm f/4.5-6.3 VR DX Nikkor ×
Notes	Weather resistant; PENTAX SP coating protects exposed lens elements; Included Accessories: lens hood, lens cap, rear lens cap, soft lens case.	VR Image Stabilization (up to 5.0 stops); Petal-shaped lens hood included.
Magnification Ratio (x)	0.28	0.23
Filter Size (mm)	58	62
Length (mm)	111.5	110
Closest Focus (m)	1.4	0.5
Diagonal Angle of View (degree)	5.40 - 29.00	6.50 - 31.50
Focus Details	Quick-shift Focus System	Autofocus with STM (Stepper Motor), manual focus
Focal Length (mm)	55.00 - 300.00	50.00 - 250.00
APS Equivalent	82.5 - 450mm	75 - 375mm
Brand	Pentax	Nikon
Image Circle	APS-C	APS-C (Z-Mount)
Name	Pentax 55-300mm f/4-5.8 ED WR HD DA	Nikon Z 50-250mm f/4.5-6.3 VR DX Nikkor
Weight (g)	466	405
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	4.00 - 32.00	4.50 - 16.00
Diaphragm Blades	6	7
Diaphragm Blades Type	-	rounded
Lens Construction	12 elements in 8 groups, including ED elements	16 elements in 12 groups, including 1 ED glass element
Zoom System	Rotary	Rotary
Diameter (mm)	71	74