Pond Skater Foot

This is a photomicrograph of the tip of the foot of a species of Pond Skater found in England. This small insect skims along the surface of the water, thanks to surface tension. The original microslide was prepared by an unknown mounter in the latter part of the 19th century, and its fine state of preservation speaks well of the fine job of mounting. This slide, along with 11 others, was recently circulated by the long established Postal Microscopical Society of England to its circuit members in the USA.

The photomicrograph was made with a Nikon 950 digital camera, in macro mode, mounted on a small copy stand directly above one of the inclined eyepieces (Nikon CFWN 10x/20) of a Leitz biological binocular microscope, c. 1950, using a 10x Leitz objective. Critical illumination was from a 60w tungsten bulb, reflected by a plane mirror into the stopped-down 1.25 NA substage condenser, giving bright field illumination. Having focused the microscope with the eye (through the other eyepiece), the 950's autofocus did the rest. Exposure measurement was center-weighted. Since the subject had no coloration, this image is B&W.

Please note: Since the magnified image perceived by the eye, looking into the eyepiece of the microscope, appears to be 250mm (10") from the eye, the camera must be in the macro mode in order to be able to focus to this short distance.


Pond Skater Foot


Return to
George's
Microscope Page
  Return to
George's
Home Page
  Visit Our Host
Arco Iris Web Designs.


This site designed and maintained by Arco Iris Web Designs, LLC. © Copyright 2001, revised 2008, all rights reserved.