Model	Name	Suitable Raman Excitation Range	Working Distance (adjustable)	Aperture Diameter	Focused Laser Spot Diameter
RTS200-VIS-NIR	Zoom Lens 20 – 60 mm	500 – 850 nm	20 – 60 mm	23 mm	~0.21 mm @ 20 mm ~2.3 mm @ 60 mm
RTS200-NIR	Zoom Lens 20 – 60 mm NIR	785 – 1064 nm	20 – 60 mm	23 mm	~0.21 mm @ 20 mm ~2.3 mm @ 60 mm
RTS201-VIS-NIR	Zoom Lens 60 – 600 mm	500 – 850 nm	60 – 600 mm	48 mm	~0.22 mm @ 60 mm ~2.6 mm @ 600 mm
RTS201-NIR	Zoom Lens 60 – 600 mm NIR	785 – 1064 nm	60 – 600 mm	48 mm	~0.22 mm @ 60 mm ~2.6 mm @ 600 mm
RTS202-VIS-NIR	Zoom Lens 0.6 – 6 m)	500 – 850 nm	0.6 – 6 m	70 mm	~0.6 mm @ 0.6 m 8.5 mm @ 6 m