BRESSER 30mm 20x Plan Eyepiece

The 10x eyepiece is suitable for all microscopes with 23.2mm eyepiece tube diameter. This diameter is widely used in stereo microscopes, also from other brands or manufacturers. Please select the eyepiece magnification in correspondence to the objective you are using. A low objective magnification allows for a higher magnification of the eyepiece. For example, combined with 4x or 10x objectives, eyepieces with 20x or 25x magnification can be used without loss of image quality. With a 100x objective, a 10x or 12.5x eyepiece is usually the highest recommended eyepiece magnification. To calculate the maximum useful magnification, consider the numerical aperture (N. A.) of the objective lens: numerical aperture of the objective lens x 1000 = max. useful magnification Here is a typical example: for a 10x objective with numerical aperture NA 0.25, a maximum of 250x magnification can be realized. This is realized with a 25x eyepiece. The numerical aperture is usually printed besides the magnification factor on many objectives. Magnifications beyond the max. useful magnification do not show any further details (so-called “empty magnification”) and are therefore not recommended. FEATURES Wide field eyepiece 15x for stereo microscopes Eyepiece with wide field of view Compatible with most stereo microscopes Microscope should have diopter adjustment built in Easy to change SCOPE OF DELIVERY ICD 30.5mm Widefield Eyepiece 15x

The BRESSER 0.5x reduction lens is used to change the image field of a microscope camera. Itallows to zoom in or out. The brightness becomes more intensive, to reduce the exposure time.For trinocular microscopes the adapter allows to adjust the focus to get the same focus for every eyepiece. It is compatible with 23.2 mm eyepiece holders. This adapter is designed for cameras with sensor sizes from 1/2 " or 1/3". The connection is made via 1 " C-mount thread. FEATURES For cameras with 1" c-mount thread To adjust the image field For 23.2 mm eyepiece holders SCOPE OF DELIVERYReduction lens 0.5x variable