User manual LEICA M50

[. . . ] Leica M50 Leica M60 Leica M80 User Manual General Instructions Safety concept Before using your microscope for the first time, please read the "Safety concept" brochure included with your instrument. Use in clean rooms The Leica M series can be used in clean rooms without any problems. Cleaning Do not use any unsuitable cleaning agents, chemicals or techniques for cleaning. Never use chemicals to clean colored surfaces or accessories with rubberized parts. [. . . ] Push the eyepieces together or separate them until you see a circular image. Slowly approach the eyepieces with your eyes until you can see the complete image field without corner cutting. Leica M-series User Manual 30 Using the Eyepieces The eyepieces form the connection between the tube and the eye of the observer. Each eyepiece offers a certain magnification factor that has a determinative effect on the total magnification. Furthermore, all Leica eyepieces can be equipped with practical graticules that enable measuring and quantifying of specimens. Dioptric correction A built-in dioptric correction is available for eyeglass wearers. If an eyepiece is equipped with the integrated dioptric correction, turn the value to the "0" mark. Hold the eyepiece firmly and rotate the eyecups forwards counterclockwise. Hold the eyepiece firmly and rotate the eyecups counterclockwise towards the rear, as otherwise the viewing distance is too great. 2. If an eyepiece is equipped with the integrated dioptric correction, turn the value to the "0" mark. By the way, one benefit of viewing with eyeglasses is a drastically lower risk of bacterial transmission (see page 38). The soft material of the eyecup also ensures that your glasses will not be scratched, even if they contact the eyepiece. Leica M-series User Manual 31 Focusing Focusing raises or lowers the stereomicroscope using the focusing drive. The specimen detail is brought into sharp focus as soon as it is in the focal point of the objective. The focusing drive can be operated either left- or right-handed. · load of up to 15 kg. ment is 1 µm. The coarse/fine adjustment carries a The resolution of the coarse/fine adjust- Leica M-series User Manual 32 Adjusting the Resistance of the Focus Drive Adjusting the resistance Is the focus movement too loose or too tight?The resistance can be adjusted individually depending on the equipment weight and personal preferences as follows: 1. Grip the outer drive knobs with both hands and turn them towards each other until the desired resistance is reached during focusing. Leica M-series User Manual 33 Changing the Magnification (Zoom) All M series microscopes have an integrated zoom. The name indicates the zoom range covered: Leica M50 Leica M60 Leica M80 = 5 increments = 6:1 zoom = 8:1 zoom Zooming 1. Rotate the magnification changer until the desired magnification is configured. The rotary knob for the zoom can be used either left or right-handed. Leica M-series User Manual 34 Ratchet Steps and Magnification Levels The zoom button can optionally be operated either with or without ratchet steps. Continuous zoom is possible when the ratchet steps are disabled, which many users find convenient. On the other hand, when the ratchet steps are enabled, photographs, measurement results etc. Magnifications and fields of view The formula on page 62 provide additional information about the magnifications and field of view diameters, with consideration given to the position of the magnification changer and the eyepiece and objective combination used. Leica M-series User Manual 35 Eyepieces & Tubes Leica M-series User Manual 36 Magnification Factor of the Eyepieces An eyepiece not only makes it possible to look passively into the microscope, but also has a critical effect on the maximum magnification. The following eyepieces are available for the M series: Magnification 10× 16× 25× 40× Dioptric correction ± 5 diopter settings ± 5 diopter settings ± 5 diopter settings ± 5 diopter settings Order number 10 450 023 10 450 024 10 450 025 10 450 026 Leica M-series User Manual 37 Health Notes Potential sources of infection Direct contact with eyepieces is a potential transmission method for bacterial and viral infections of the eye. [. . . ] Therefore, always switch on the illuminator before you look through the eyepieces!Switch on the illuminator by briefly pressing the (ON/OFF) button. 2. Switch off the illuminator by briefly pressing the button. increased magnification level of 1. 5×. Using the Leica LED5000 CXI results in an occur at low magnification. Vignetting is normal and not a malfunction. different intensities of vignetting may Depending on the components used, The green LED on the upper left corner now lights up. Leica M-series User Manual 51 Dimensional Drawings Leica M-series User Manual 52 134 105 90 Leica M50 Leica M50 with small incident-light base, transmitted-light base, Leica L2 illumination and 45° binocular tube 205 220 54 390 277 66 87 300 321 315 436 134 105 90 66 87 205 220 390 277 54 205 Leica M-series User Manual 277 53 390 514 Leica M50 Leica M50 with large incident-light base and ErgoTube® 45° 278 116 119 500 24 301 255 514 436 500 116 119 54 24 278 301 255 278 Leica M-series User Manual 301 54 322 436 Leica M50 Leica M50 with small swinging-arm stand and 45° binocular tube 220 54 260 500 173 170 709 260 345 220 220 173 54 345 260 709 Leica M-series User Manual 55 Leica M60 Leica M60 with large incident light base and 45° binocular tube 324 24 278 116 119 301 54 66 255 330 24 116 119 54 278 301 278 255 66 Leica M-series User Manual 288 301 324 330 56 Leica M80 Leica M80 with large incident-light base and 45° binocular tube 54 278 324 24 116 119 301 255 66 324 24 116 119 54 278 278 301 255 66 Leica M-series User Manual 288 301 395 395 57 606 500 356 106 21 Leica M80 with transmitted-light base TL ST and binocular ErgoTube® 154 154 606 500 420 85 154 154 340 106 21 356 Leica M-series User Manual 85 290 58 430 290 Leica M80 420 Leica M80 Leica M80 with standard swinging-arm stand and 45° binocular tube 220 54 598 470 345 173 230 794 330 330 220 173 220 Leica M-series User Manual 54 794 345 59 Leica M80 42 30 109 100 Leica M80 with Leica LED2500 and binocular ErgoTube® 331 257 max. 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