What is dynamic range?

The dynamic range of a camera is the ratio between the brightest and the darkest part of the specimen that the camera is capable of capturing.

Testing the iPad camera

The two images show the fresh water polyp Hydra sp taken with the iPad held in front of the eyepiece (40x and 400x total magnification). The images were uploaded directly and not edited (except resize).

How to make macro images


This time I’d like to talk about a topic which is only indirectly related to microscopy: macro imaging.

Dandelion parachute ball up close


This is one of the first tries taking pictures with my new Sigma objective, and I have to admit that I’m very satisfied with the lens.

Digital methods for improving microscopic photographs

Digital photography gives the users many new possibilities in improving photographs taken through the microscope. This post gives an overview of the different image processing functions that can be applied to microscopic images.