Do you have specifications for the x40 objectives?

Answer: 

The table below contains more information about the x40 objectives used on the MSMs and SporePlay's. 

Note: Singer Instruments are no longer able to supply the x 40 Objectives due to lack of availability but it may be possible to source them elsewhere.

MSM Tube length	160mm
Achromat LWD Objective 40x Numerical Aperture (N.A)	0.45
LWD (Long Working Distance)	6.80mm
Focal length	6.06mm
DIN standard	45mm PFL (par-focal length)
Objective thread	RMS standard W0.8x36
No Cover Glass Type	Designed for use with uncovered specimens

If you require more information please contact [e-mail] for assistance.