Talk:List of abbreviations in photography

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Back-focus & Front-focus. I have come across these terms abbreviated to BF and FF. However, I hesitate to include these abbreviations in the list. Discussion of these anomalies, on the photography forums, seems to generate more heat than light. The terms could be ambiguous: most discussion concerns camera owners believing (rightly or wrongly) that their camera-lens combination fails to autofocus accurately, producing the sharpest image either beyond ("BF") or in front of ("FF") the desired plane. However, some Wikipedia entries (eg: Focal length) also cover the terms Back Focal Length and Front Focal Length, which relate to lens geometry. Do others think that BF and FF should be included as abbreviations in photography, or is the danger of ambiguity and lack of importance sufficient reason for ignoring them? martinev (talk) 17:43, 6 March 2011 (UTC)

On two occasions people have, with the best of intentions, corrected 'typos' which they should have left alone. The abbreviation Tv should not be 'corrected' to TV. Tv is the correct abbreviation for Time value: the mode setting where the photographer defines the exposure time (ie: shutter speed) and the AE takes care of the rest. Av is the corresponding abbreviation for Aperture value, where the f-stop is fixed by the photographer. Sv is the abbreviation for Sensitivity value where the photographer sets the ISO value. martinev (talk) 22:10, 8 January 2012 (UTC)

Av & Tv vs A and S
I may be wrong (can't research at present, sorry), but it feels odd to see Av & Tv suggested as the vendor-neutral versions while A and S are listed as manufacturer variants. Canon and Pentax do the former (and I believe no others), while the page catalogues a rather longer list who do the latter.... Eftpotrm (talk) 12:32, 8 May 2013 (UTC)

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