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With a 50mm objective lens, the TS-500 Series scopes are amazingly light at 400 grams (14 oz.). These scopes can be easily carried when hiking or trekking, adding extra enjoyment to outdoor activities. They are also extremely useful in shooting, archery, and other sporting events.

	Aiming Line When the object you wish to view is difficult to find, the aiming line is helpful for quick sighting.
	Focusing Knob The focusing knob allows a smooth and accurate focusing with one-finger.
	Tripod Mount When ever possible use a tripod or some other stable support in order to prevent image blur due to vibration etc.

Model	TS-501 20X	TS-502 20X	TS-501 ZOOM
Objective Lens Diameter	50mm	50mm	50mm
Lens Type	Nomal Lens	Nomal Lens	Nomal Lens
Minimum Focusing Distance	6m (6.6yds)	6m (6.6yds)	6m (6.6yds)
Length	225mm(8.9in)	235mm (9.3in)	245mm (9.6in)
Weight	385g(13.6oz)	380g(13.4oz)	420g(14.8oz)

Model	TS-501 ZOOM	TS-501/502 20X
Magnification	20～40X, ZOOM	20X
Real Filed of View	2.3～1.3°	3.0°
Exit Pupil	2.5～1.25mm	2.5mm
Relative Brightness	6.3～1.6	6.3
Eye Relief	14～12mm	13mm
Field of View at 1000m/yds	40.1～22.7m/yds	52.4m/yds