Would it be permissible to take a picture with a film camera operated mechanically? If not what would be the melacha involved?
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Based on my limitited understanding of photography there is no action of "writing". One merely opens the aperture and light reacts with previously treated film.– Michael HorwitzCommented Nov 19, 2014 at 12:27
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Most decent film cameras include a light meter, which does have electrical elements. Furthermore, enacting a chemical change is mechalel Shabbat, AFAIK.– Noach MiFrankfurtCommented Aug 3, 2015 at 19:30
1 Answer
Making a permanent visual record is generally considered a form of "writing"; this includes film photography.
From http://www.yutorah.com/_materials/Source_Sheet-510279.pdf :
ר' יצחק וויס, שו"ת מנחת יצחק חלק ג סימן כ
בתשו' קרן לדוד שם, כתב בפשיטות לענין המצייר צורה על ידי פאטאגראפיע דחייב משום תולדה דכותב
Minchat Yitzchak (Responsa of R. Yitzchak Weiss), 3:20
The Keren LeDavid wrote that it is obvious that making a picture by photograph would be a Torah violation as a form of "writing."