File:RTF Test card 819-lines 1953.jpg

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RTF_Test_card_819-lines_1953.jpg (363 × 275 pixels, file size: 65 KB, MIME type: image/jpeg)

Summary

Media data and Non-free use rationale
Description	First RTF TV test card, introduced in 1953, and featuring on the center an image of the Marly horses. Gratings measure horizontal resolutions up to 850 tv lines, indicating that the card was prepared for the analog high resolution 819-lines tv system.
Author or copyright owner	RTF (Radiodiffusion-Télévision Française)
Source (WP:NFCC#4)	https://www.vivelapub.fr/retrospective-la-mire-tv/
Date of publication	1953
Use in article (WP:NFCC#7)	Test card
Purpose of use in article (WP:NFCC#8)	To support encyclopedic discussion of this work in this article. The illustration is specifically needed to support the following point(s): To show an example of an early test card and of the information it contains - resolution gratings, grayscale, image geometry
Not replaceable with free media because (WP:NFCC#1)	Any derivative work based upon the artwork would be a copyright violation, so creation of a free image is not possible.
Minimal use (WP:NFCC#3)	The image is used once as an example of one of the first test cards.
Respect for commercial opportunities (WP:NFCC#2)	The use of a low resolution image of the artwork will not impact the commercial viability of the art.
Fair useFair use of copyrighted material in the context of Test card//en.wikipedia.org/wiki/File:RTF_Test_card_819-lines_1953.jpgtrue

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:13, 5 February 2022		363 × 275 (65 KB)	DatBot (talk \| contribs)	Reduce size of non-free image (BOT - disable)
	22:18, 3 February 2022	No thumbnail	443 × 336 (29 KB)	4throck (talk \| contribs)	Uploading a non-free work, as object of commentary using File Upload Wizard

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File usage

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Test card