OPERATION Axioskop 2 plusCarl Zeiss Operation and function controls Axioskop 2 mot plus3-6 B 40-075 e 02/01Eyepieces− Both eyepiece versions, E-PL 10x/23 Br. foc. and W-PL 10x/23 Br. foc., enable compensation ofametropia of the user's eyes (see section 2.1.3) and also accept eyepiece reticles (see section 1.7).Binocular tubes− The four binocular tubes offered permit the individual setting of the interpupillary distance and theviewing height within set limits. Furthermore, the two ergotubes permit the viewing angle to be setindividually within a range from 6 to 25°.Centering screws for luminous-field diaphragm (incident light)− Centering of the luminous-field diaphragm using the SW 3 screwdriver (see section 3.3.6).Pushrod for luminous-field diaphragm (incident light)− Continuous setting of the luminous-field diaphragm diameter (see section 3.3.6).− Pushrod pushed in: fully open− Pushrod pulled out: closedCompartment for filter slider− For 3-position or 6-position FL filter slider with 18 mm filter diameter.Centering screws for aperture diaphragm (incident light)− Centering of aperture diaphragm using SW 3 screwdriver (see section 3.3.6).Pushrod for aperture diaphragm (incident light)− Continuous setting of the aperture diaphragm diameter (see section 3.3.6).− Pushrod pushed in: fully open− Pushrod pulled out: closedAdjusting aid for lamp adjustment− The adjusting aid is used to adjust and center the HAL 100 halogen illuminator and the HBO 103mercury vapor short-arc lamp.LED lamp voltage array− Indicates the present operating voltage of the halogen illuminator in 10 steps (3 ... 12 V).Pilot lamp− The LED-pilot lamp for the line voltage lights up in green when the instrument is switched on.Control for light intensity− Controls the DC voltage supply of the halogen illuminator in the range from 3 ... 12 V.