Canon RF-S18-150mm F3.5-6.3 IS STM vs Irix Lens 21mm f/1.4 Dragonfly for Pentax K (Camera Lens Comparison)

Feature	Canon RF-S18-150mm F3.5-6.3 IS STM	Irix Lens 21mm f/1.4 Dragonfly for Pentax K
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Product Code	5564C002	IL-21DF-PK
Purchase
Purchase	Adorama $499 B&H Photo $499 Best Buy $500 Newegg $490 Walmart $500	Adorama $699 B&H Photo $449
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Product
Product Brand	Canon	Irix
Product Family
Retail Price	$500 USD	$699 USD
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Camera Lens
Camera Lens Mount	Canon RF Lens Mount	Pentax K Lens Mount
Format Coverage	APS-C Sensor	Full Frame Sensor
Zoomability	Zoom Lens	Prime Lens
Lens Image Stabilization	Yes Stabilization	No Stabilization
Maximum Aperture	4 F-Stop	1 F-Stop
Minimum Aperture	40 F-Stop	16 F-Stop
Min Focal Length	18 mm	21 mm
Max Focal Length	150 mm	21 mm
Maximum Magnification	0 x
Max View Angle	74 Degrees	90 Degrees
Min View Angle	10 Degrees	90 Degrees
Lens Groups	13 Lens Groups	11 Lens Groups
Lens Elements	17 Lens Elements	15 Lens Elements
Compare
Compare	Compare to another camera lens	Compare to another camera lens