Mr. Ralph Grimm

2012

Specimen: Colonial rotifers showing eyespots and corona, magnification 200x - 500x.

Technique: Differential interference contrast

2006

Specimen: Housefly Proboscis

Technique: Darkfield Illumination

2013

Specimen: Paramecium, showing contractile vacuole and ciliary motion.

Technique: Differential interference contrast, 350x-1000x