Sony FE 400 mm F2.8 GM OSS Full-frame Super-telephoto Prime G Master Lens with Optical SteadyShot vs Irix Lens 11mm f/4 Firefly for Pentax K (Camera Lens Comparison)

Feature	Sony FE 400 mm F2.8 GM OSS Full-frame Super-telephoto Prime G Master Lens with Optical SteadyShot	Irix Lens 11mm f/4 Firefly for Pentax K
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Product Code	SEL400F28GM	IL-11FF-PK
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Purchase	B&H Photo $11,998 Adorama $11,998 Amazon $11,425 Walmart $10,995	Adorama $399 Amazon $449 B&H Photo $349
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Product Brand	Sony	Irix
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Retail Price	$12,000 USD	$449 USD
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Product Manual	sony.com/electronics/support/res/manuals/4737/b5701f9db59570a6b0e1a6d81c4267be/47373090M.pdf [i]
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Camera Lens
Camera Lens Mount	Sony E Lens Mount	Pentax K Lens Mount
Format Coverage	Full Frame Sensor	Full Frame Sensor
Zoomability	Prime Lens	Prime Lens
Lens Image Stabilization	Yes Stabilization	No Stabilization
Maximum Aperture	3 F-Stop	4 F-Stop
Minimum Aperture	22 F-Stop	22 F-Stop
Min Focal Length	400 mm	11 mm
Max Focal Length	400 mm	11 mm
Maximum Magnification	0 x
Max View Angle	6 Degrees	126 Degrees
Min View Angle	6 Degrees	126 Degrees
Lens Groups	17 Lens Groups	10 Lens Groups
Lens Elements	23 Lens Elements	16 Lens Elements
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Compare	Compare to another camera lens	Compare to another camera lens