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Re: G176: typical viewing distance (11-26 inches)?

From: Loretta Guarino Reid <lorettaguarino@google.com>
Date: Fri, 23 Apr 2010 18:28:00 -0700
Message-ID: <p2q824e742c1004231828j45c317feteb3ad45045d5c1ef@mail.gmail.com>
To: makoto.ueki@gmail.com
Cc: public-comments-wcag20@w3.org
On Sat, Jan 2, 2010 at 6:52 AM,  <makoto.ueki@gmail.com> wrote:
>
> Name: Makoto Ueki
> Email: makoto.ueki@gmail.com
> Affiliation: Infoaxia, Inc.
> Document: TD
> Item Number: G176
> Part of Item: Description
> Comment Type: question
> Summary of Issue: G176: typical viewing distance (11-26 inches)?
> Comment (Including rationale for any proposed change):
> It reads "When viewed at a typical viewing distance (11-26 inches) a 10 degree visual field will capture an area approximately 341 x 256 pixels." On the other hand, in the "general flash and red flash thresholds" of Appendix A: Glossary, it reads "Note 1: For general software or Web content, using a 341 x 256 pixel rectangle anywhere on the displayed screen area when the content is viewed at 1024 x 768 pixels will provide a good estimate of a 10 degree visual field for standard screen sizes and viewing distances (e.g., 15-17 inch screen at 22-26 inches)."
>
> Proposed Change:
> Which is correct? "typical viewing distance (11-26 inches)" or "typical viewing distance (22-26 inches)"?
>
>

================================
Response from the Working Group
================================
Thanks for catching this. There was a typo in G176. We will correct
this error next time we update the techniques.


Loretta Guarino Reid, WCAG WG Co-Chair
Gregg Vanderheiden, WCAG WG Co-Chair
Michael Cooper, WCAG WG Staff Contact


On behalf of the WCAG Working Group
Received on Saturday, 24 April 2010 01:28:31 UTC

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