Direct Vision Spectroscope

Description

Optically worked, back silvered, with protective coating.

Focal length	Add To Enquiry
50 mm	75 mm
50 mm	100 mm
50 mm	150 mm
50 mm	200 mm
50 mm	300 mm
60 mm	100 mm
60 mm	150 mm
60 mm	200 mm
60 mm	300 mm
75 mm	100 mm
75 mm	150 mm
75 mm	200 mm
75 mm	300 mm

Description

These are collapsible pocket magnifiers. The optical system is a single element, glass Double Convex Lens. The housing is made of machined, black high grade plastic for a high finish look. These magnifiers fold flat to fit in your pocket. Scales are etched on the inner faces of the viewer’s base.

Description

Brass dial head 40 mm diameter divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on heavy brass disc, with 3 pointed legs, distance between legs 40 mm.

Description

In metal frame and handle, chrome plated

Focal length	Magnification	Add To Enquiry
40 mm	100 mm	x 3.5
50 mm	120 mm	x 3
50 mm	150 mm	x 2.5
60 mm	150 mm	x 2.5
75 mm	150 mm	x 2.5
75 mm	200 mm	x 2.25
100 mm	150 mm	x 2.5
100 mm	250 mm	x 2.25