Nikon DS-5M, DS-5MC, DS-L1 Symptom, The color is poor, Corrective action, The contrast is low

VIII Troubleshooting

2 Image Output

Symptom

The color is poor.The contrast is low.

Noise appears at the edges of the menu when shown on an LCD monitor or projector.

Corrective action

•Set the white balance.

=> See “2 Photographing Images” in Chapter VI.

•Apply a moderate amount of color compensation. => See “2 Photographing Images” in Chapter VI.

•Turn off hue adjustment.

=> See “2 Photographing Images” in Chapter VI.

•Set the color temperature of the internal monitor and external monitor to an appropriate level.

=> See “1.4.4 Adjusting Monitor Output for an External Monitor” in Chapter VI.

•Set the color temperature of the illumination to an appropriate level.

•Set the tone appropriately.

=> See “2 Photographing Images” in Chapter VI.

•Avoid adjusting the black level to the positive side of SFT. => See “2 Photographing Images” in Chapter VI.

•Adjust the size of the field diaphragm so that it circumscribes the viewfield.

•Adjust the size of the aperture diaphragm to approximately 70% to 80% of the numerical aperture of the objective.

•Use an appropriate filter.

When using a phase contrast microscope or an interference microscope (two luminous fluxes or multiple luminous fluxes), insert the specified filter. With a black and white image, contrast is improved by inserting a green interference filter (GIF). Contrast in color images is enhanced by inserting a filter having a complementary color to that of the specimen.

•Adjust the ambient light around the microscope.

Make the room darker, or place caps on the binocular eyepiece, for example.

•Check the contrast of the specimen itself.

•Adjust the clock phase of the LCD monitor or projector.

=> See “1.4.4 Adjusting Monitor Output for an External Monitor” in Chapter VI.

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