oil-immersion

Ziehl-Neelsen's method, and examine microscopically with a 1/12 inch oil-immersion lens.

The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.

Substitute the 1/12-inch oil-immersion lens for the sixth, and observe the formation of the spore; if possible, measure any alteration in size which may occur by means of the Ramsden micrometer.

The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.

You should virtually never use the 100X oil-immersion objective unless you are trying to visualize bacteria or cellular inclusions.

Recently Uploaded Slideshows 2009

The only major missing feature is the 100X oil-immersion objective, which is needed for cell biology studies in high school AP biology courses.

MAKE Magazine 2009

Better models provide a rack-and-pinion focusable Abbe condenser with a 1.25 NA for use with any objective up to a 100X oil-immersion objective.

MAKE Magazine 2009

Images were acquired with a Leica TCS SP2 confocal system (Leica Microsystems) using an oil-immersion 63× objective lens and standard lasers and filters for FITC, Cy3 and DAPI (two-photon) fluorescence.

PLoS ONE Alerts: New Articles Luke W. Meredith et al. 2009