Sony Fisheye Converter vs Pentax DA★300mm F4 ED [IF] SDM (Camera Lens Comparison)

Feature	Sony Fisheye Converter	Pentax DA★300mm F4 ED [IF] SDM
Image
Product Code	VCL-ECF2	Pentax 21760
Purchase
Purchase	B&H Photo $178 Adorama $178 Amazon $107 Newegg $237	Adorama $1,097 B&H Photo $1,097 Newegg $1,097 Walmart $1,097
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Product
Product Brand	Sony	Pentax
Product Family
Retail Price	$180 USD	$1,294 USD
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Product Manual	sony.com/electronics/support/res/manuals/4566/9683a340a229c3f1bea53f337f5da44f/45660713M.pdf [i]
Firmware Download
Camera Lens
Camera Lens Mount	Sony E Lens Mount	Pentax K Lens Mount
Format Coverage	APS-C Sensor	APS-C Sensor
Zoomability	Fisheye Converter	Prime Lens
Lens Image Stabilization	No Stabilization	No Stabilization
Maximum Aperture	3 F-Stop	4 F-Stop
Minimum Aperture	22 F-Stop	32 F-Stop
Min Focal Length	10 mm	300 mm
Max Focal Length	13 mm	300 mm
Maximum Magnification	0 x	0 x
Max View Angle	180 Degrees	5 Degrees
Min View Angle	133 Degrees	5 Degrees
Lens Groups	4 Lens Groups	6 Lens Groups
Lens Elements	4 Lens Elements	8 Lens Elements
Compare
Compare	Compare to another camera lens	Compare to another camera lens