F2
HF: Brightfield
DFI: Darkfield with immersion darkfield condenser
DFT: Darkfield with dry darkfield condenser
PHC: Phase and phase anoptral contrast
DLF: Transmitted fluorescence excitation
AFBL: Epi-illumination fluorescence with blue light excitation
AFUV: Epi-illumination fluorescence w/ UV excitation
IK: Interference contrast
The engravings on the lens barrel have the following meanings:
Plan ................. Plan achromatic lens
Plan Apo........... Plan apochromatic objective lens
Oil, Glyz............for oil or glycerin immersion
Iris.....................built-in iris diaphragm
100x/1.25........ objective magnification 100x/numerical aperture 1.25
∞/0.17 fed....... infinity tube length/cover glass to use=0.17mm thick, springy front lens version
If the coverglass thickness is “- ”, then preparations can be used without a coverslip
The iris diaphragm built into the stronger lenses is used, if needed, for darkfield or fluorescence investigations.
For all other studies, they are fully opened by turning the adjusting rings on the lens barrel.
Summary of Contents for Univar
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