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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 Excerpt: ...possible field. The disc is graduated to degrees. The prism with this disc is easily removed for exchange of eyepieces. The whole analyzer is securely clamped to the tube in any desired position. Spencer Photo-Micrographic Camera Designed by L. B. WILSON, M. D. Rochester, Minn. Many times an operator finds some particular feature in a specimen under the microscope which he desires to photograph with the least inconvenience. The light is properly adjusted and everything ready for the picture--but the camera. This simple photo-micro camera may be brought to the microscope and the picture made without disturbing the microscope or any of its No. 645 Photo-Micro Equipment adjustments. It is easily disposed of when the operator wishes to go on with his visual investigations. The camera is a slightly modified hand camera supported on a rigid upright rod which in turn is supported on a heavy. 1 T,..1. 1 Diagram Showing Connec cast-iron base..Between the two longer tion between Body Tube of feet of this base are adjustable stops ""'"v and £ Camera which may be adjusted to any microscope to always bring it to the same position. The camera is adjustable up and down on the rod and can also be revolved around the rod as an axis. There are suitable stops to bring the center of the camera coincident with the axis of the microscope. The camera may be rotated in any position through 360 in a vertical and horizontal plane. This makes it available for copying or any ordinary photography. Indeed, it may be entirely removed from the photo-micro base and used as any hand camera is used. The camera is regularly equipped Iwith special adapters and extensions for photo-micrographic work as well as an excellent rapid rectilinear lens and automatic shutter. The sp...
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