Sony 2x Teleconverter Lens 2x Teleconverter compatible with select telephoto lenses vs Pentax HD PENTAX-DA 21mm F3.2 AL Limited (Camera Lens Comparison)

Feature	Sony 2x Teleconverter Lens 2x Teleconverter compatible with select telephoto lenses	Pentax HD PENTAX-DA 21mm F3.2 AL Limited
Image
Product Code	SEL20TC	Pentax 21410
Purchase
Purchase	Adorama $548 Amazon $548 B&H Photo $548 Best Buy $550 Newegg $505 Walmart $535	Amazon $348 B&H Photo $497 Walmart $500
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Product
Product Brand	Sony	Pentax
Product Family
Retail Price	$550 USD	$497 USD
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Product Manual	sony.com/electronics/support/res/manuals/4584/45845790M.pdf [i]
Firmware Download
Camera Lens
Camera Lens Mount	Sony E Lens Mount	Pentax K Lens Mount
Format Coverage	Full Frame Sensor	APS-C Sensor
Zoomability	Teleconverter Lens	Prime Lens
Lens Image Stabilization		No Stabilization
Maximum Aperture		3 F-Stop
Minimum Aperture		22 F-Stop
Min Focal Length		21 mm
Max Focal Length		21 mm
Maximum Magnification		0 x
Max View Angle		68 Degrees
Min View Angle		68 Degrees
Lens Groups	5 Lens Groups	5 Lens Groups
Lens Elements	8 Lens Elements	8 Lens Elements
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Compare	Compare to another camera lens	Compare to another camera lens