File:Keuffel & Esser slide rule, model 4081-3 (ca. 1940) - Detail.jpg

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Summary

Description	Slide rule -- KEUFFEL & ESSER CO. N.Y. Date Taken : 2004/12/11 Camera: Canon 10D Lens: Canon EF 100mm f/2.8 Macro lens Exposure: f/16 at 1 second, ISO 100 This slide rule is from around 1940. It was used by my father UC Berkeley engineering school from 1940-1942,and later by me in engineering school from 1966-1971. Note: This slide rule needs alignment.
Date	11 December 2004, 20:41
Source	Keuffel & Esser slide rule, model 4081-3
Author	s58y

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This image was originally posted to Flickr by s58y at https://www.flickr.com/photos/45032885@N04/4415406714. It was reviewed on 31 May 2013 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

31 May 2013

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:45, 31 May 2013		1,200 × 800 (334 KB)	Jacopo Werther	{{Information \|Description=Slide rule -- KEUFFEL & ESSER CO. N.Y. Date Taken : 2004/12/11 Camera: Canon 10D Lens: Canon EF 100mm f/2.8 Macro lens Exposure: f/16 at 1 second, ISO 100 This slide rule is from around 1940. It was used by my fathe...

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Exposure time	1/1 sec (1)
F-number	f/16
Date and time of data generation	20:41, 11 December 2004
Lens focal length	100 mm
ISO speed rating	100
Width	3,072 px
Height	2,048 px
Bits per component	16 16 16
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	240 dpi
Vertical resolution	240 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS4 Windows
File change date and time	14:51, 7 March 2010
Color space	sRGB
Shutter speed	0
APEX aperture	8
Exposure Program	Manual
Exposure bias	0
Metering mode	Center weighted average
Image width	1,200 px
Image height	800 px
Serial number of camera	1420506696
Lens used	100.0 mm
Date and time of digitizing	16:56, 11 December 2004
Date metadata was last modified	09:51, 7 March 2010
Unique ID of original document	adobe:docid:photoshop:e8b21ec2-4be7-11d9-9e52-950f5f60e788
IIM version	2

File:Keuffel & Esser slide rule, model 4081-3 (ca. 1940) - Detail.jpg

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