Sony FE 20mm F1.8 G Full-frame Ultra-wide Prime G Lens vs Opteka 500mm f/6.3 (with 2x- 1000mm) Telephoto Mirror Lens for T Mount (Camera Lens Comparison)

Feature	Sony FE 20mm F1.8 G Full-frame Ultra-wide Prime G Lens	Opteka 500mm f/6.3 (with 2x- 1000mm) Telephoto Mirror Lens for T Mount
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Product Code	SEL20F18G	OPT5006M
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Purchase	Adorama $898 Amazon $898 B&H Photo $898 Best Buy $900 Newegg $856 Walmart $725	B&H Photo $140
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Product Brand	Sony	Opteka
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Retail Price	$900 USD	$109 USD
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Product Manual	sony.com/electronics/support/res/manuals/5006/501ccbc9f56499b83c5d1490e5907d26/50066530M.pdf [i]
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Camera Lens
Camera Lens Mount	Sony E Lens Mount	T Lens Mount
Format Coverage	Full Frame Sensor	Full Frame Sensor
Zoomability	Prime Lens	Prime Lens
Lens Image Stabilization	No Stabilization	No Stabilization
Maximum Aperture	2 F-Stop	6 F-Stop
Minimum Aperture	22 F-Stop	6 F-Stop
Min Focal Length	20 mm	500 mm
Max Focal Length	20 mm	500 mm
Maximum Magnification	0 x
Max View Angle	94 Degrees	4 Degrees
Min View Angle	94 Degrees	4 Degrees
Lens Groups	12 Lens Groups	6 Lens Groups
Lens Elements	14 Lens Elements	7 Lens Elements
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Compare	Compare to another camera lens	Compare to another camera lens