Laws of lenses and optical instruments

Experimental lamp LED HEX 1
Lens, mounted, f +20 mm
Lens, mounted, f +50 mm
Lens, mounted, f +100 mm
Lens, mounted, f +300 mm
Lens, mounted, f -50 mm
Lens, mounted, 1-200 mm
Screen, translucent, 250×250 mm
Screen, with arrow slit
Ground glass screen,50x50x2 mm
Object micrometer on glass plate, 1 mm in 100 parts
Ctenocephalus, microscopic slide
Slide -Emperor Maximilian-
Optical bench expert, I = 1000 mm
Base for optical bench expert, adjustable
Slide mount for optical bench expert, h = 30 mm
Slide mount for optical bench expert, h = 80 mm
Universal Holder, rotational
Lens holder

LOI-C-sp