Microscopy Primer
Light and Color
Microscope Basics
Special Techniques
Digital Imaging
Confocal Microscopy
Live-Cell Imaging
Photomicrography
Microscopy Museum
Virtual Microscopy
Fluorescence
Web Resources
License Info
Image Use
Custom Photos
Partners
Site Info
Contact Us
Publications
Home

The Galleries:

Photo Gallery
Silicon Zoo
Pharmaceuticals
Chip Shots
Phytochemicals
DNA Gallery
Microscapes
Vitamins
Amino Acids
Birthstones
Religion Collection
Pesticides
BeerShots
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Gerrit Cramer Brass Compound
Screw-Barrel Microscope

This elegantly crafted brass microscope has been redrawn from photographs of the original microscope, which is featured in Gerard Turner's excellent book Collecting Microscopes, a volume in Christie's International Collectors Series of books on antiques.

The body tube is attached to an ornate scroll pillar (limb) through a thumbscrew that allows the tube to swivel around the limb. A single ocular fixed in a brass eyepiece is attached to one end of the body tube, and the screw barrel focusing mechanism occupies the other end. The objective is mounted in a threaded brass housing that acts as the screw mechanism. There is no stage, but beneath the body tube is a planar mirror attached to the wooden base with a brass gimbal. The microscope is accompanied by a wooden storage case and is signed "G. Cramer Groningae Fecit".

BACK TO EIGHTEENTH CENTURY MICROSCOPES

Questions or comments? Send us an email.
© 1998-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Friday, Aug 01, 2003 at 11:43 AM
Access Count Since March 18, 2000: 35299
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: