If the color of the specimen is magenta, why use the color filter in microscope photography?

When choosing the type of color filter in microscope photography, we need to consider the color of the observed sample and the dyeing method used.

Fuchsin is a red stain, which is often used for nuclear staining and tissue staining. According to the color characteristics of fuchsin, we can infer that there may be red dye in the specimen. In this case, we usually choose a color filter that is complementary to the coloring matter of the specimen.

Complementary color refers to the combination of two colors to form gray or white. The complementary color of red is cyan, so when the specimen color is magenta, we can choose cyan filter for microphotography.

Using cyan filter can enhance the contrast and clarity in microscope by absorbing red light, which makes magenta samples easier to observe and shoot. Choosing this kind of color filter can get better microscope photography effect.

It should be noted that the choice of color filter may also be influenced by other factors, such as the color temperature of light source and the configuration of microscope. Different experimental purposes and sample types may also require different color filter choices. So in the specific experiment, we need to choose the color filter according to the actual situation.

In short, when the specimen color is magenta, we usually choose cyan filter for microphotography to enhance contrast and clarity.