Comprises a plated brass pipe with adjustable slit at one end for adjusting the inside amount
of light entering inside, and a draw tube at the other end having eyepiece.
The draw tube can be slid along its length for sharp focusing of the spectrum and is fitted with
a multi-element prism causing appreciable dispersion of light without deviation.
Supplied complete in velvet lined wooden case.
*Note: image shown above is for illustration purpose only; Actual image may vary due to specification, Design, Technology and R&D.*