This is a brand new Bic double edge razor blade.
Objective – Neo Splan 5x
Relay Lens – 2.5x
Illumination – Off-Axis Fiber-Optic
Next, same blade, different lighting.
Objective – Neo Splan 5x
Relay Lens – 2.5x
Illumination – Brightfield
The last image, below - same blade, different lighting.
Objective – Neo Splan 5x
Relay Lens – 2.5x
Illumination – Darkfield
