Leica confocal TCS-SP8

This is part of the Backprojected Pinhole Calculator.


The Leica TCS-SP8 has a system magnification of 3.0 (as reported by Leica). However, the side length of its square pinhole is usually reported in Airy Disk units, referenced to a standard WaveLength of 580 nm, making it independent of the actual overall magnification. It is dependent though on the Numerical Aperture of the objective.

Use the value reported by the microscope as an input in the form below.


Use this form if you have the pinhole described in terms of Airy disk units:

Number of Airy disks
Lens numerical aperture

If you have the pinhole described by its physical side in SI units, use this other form:

Pinhole side (microns)
Objective magnification