◆ Measurement examples, comparison between PSF-1100 and 2100

PSF-1100 is a low-cost model with the functions necessary for general colony counting. PSF-2100 is an all-round model not only for research and inspection but also for various samples. PSF-2100 can take clear images with a strong contrast between the colonies and the medium, which increases the measurement accuracy of unclear and small colonies.

PSF-1100

PSF-2100

• A bottom light transmission image of PSF-1100.
• A bottom light transmission image of PSF-2100.
  It has better contrast between the colonies and the medium.

PSF-2100 can take clear images, which enable to separate unclear colonies or colonies of similar color. Of course, PSF-1100 can count colonies without any problems, except in special cases.

• A top light image of PSF-2100.
  White and ivory colonies were separated.

• A top light image of PSF-1100.
• A top light image of PSF-2100.
  An image of colonies growing above seen like a ring.