Sony 1.4x Teleconverter Lens 1.4x Teleconverter compatible with select telephoto lenses vs Opteka 500mm f/6.3 (with 2x- 1000mm) Telephoto Mirror Lens for T Mount (Camera Lens Comparison)

Feature	Sony 1.4x Teleconverter Lens 1.4x Teleconverter compatible with select telephoto lenses	Opteka 500mm f/6.3 (with 2x- 1000mm) Telephoto Mirror Lens for T Mount
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Product Code	SEL14TC	OPT5006M
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Purchase	Adorama $548 B&H Photo $548 Amazon $548 Best Buy $550 Walmart $489	B&H Photo $140
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Product Brand	Sony	Opteka
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Retail Price	$550 USD	$109 USD
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Product Manual	sony.com/electronics/support/res/manuals/4584/45845790M.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	Teleconverter Lens	Prime Lens
Lens Image Stabilization	No Stabilization	No Stabilization
Maximum Aperture		6 F-Stop
Minimum Aperture		6 F-Stop
Min Focal Length		500 mm
Max Focal Length		500 mm
Maximum Magnification	1 x
Max View Angle		4 Degrees
Min View Angle		4 Degrees
Lens Groups	5 Lens Groups	6 Lens Groups
Lens Elements	6 Lens Elements	7 Lens Elements
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Compare	Compare to another camera lens	Compare to another camera lens