File:B35 Zeiss Triotar40mm.jpg

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B35_Zeiss_Triotar40mm.jpg ‎(368 × 269 pixels, file size: 52 KB, MIME type: image/jpeg)

Summary

Description
English: The Carl Zeiss 40mm Triotar lens (on a Rollei B35) referred to in Jacobson's lens tutorial ([1]). The dots represent DOF limits for f/8 and f/16, accorind to the Rollei B35 manual; the dots indicate that the lens is focused at approximately the hyperfocal distance for f/16, about 13 feet. Jacobson's inferred circle of confusion diameter, using , was about 0.025 mm.
Date 25 February 2006 (according to Exif data)
Source The uploader on Wikimedia Commons received this from the author/copyright holder.
Author David Jacobson
Permission
(Reusing this file)
VRT Wikimedia

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Licensing

Public domain This work has been released into the public domain by its author, David Jacobson. This applies worldwide.
In some countries this may not be legally possible; if so:
David Jacobson grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
Date/Time Dimensions User Comment
2006-02-26 04:50 368×269× (52904 bytes) Dicklyon Image shot today at my request by David Jacobson for use on the Zeiss formula wikipedia page, and released by him into the public domain.

Captions

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depicts

inception

25 February 2006

exposure time

0.025 second

focal length

60 millimetre

media type

image/jpeg

checksum

a8c1b61a7eff6f1ce59e26f238ec78a5eeb8089f

determination method: SHA-1

data size

52,904 byte

height

269 pixel

width

368 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current21:09, 17 May 2016Thumbnail for version as of 21:09, 17 May 2016368 × 269 (52 KB)Josve05aTransferred from en.wikipedia
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