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04-24-2009, 07:12 AM   #1
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A simple question

I'm not a beginner, but I don't know why Av and Tv are used as abrieviations for aperature priority and shutter priority.

04-24-2009, 07:36 AM   #2
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I think they stand for Aperture value and Time value but I'm not 100% sure.
04-24-2009, 09:32 AM   #3
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Av = Aperture verse. Tv = Time verse. So for Tv it would be Time (shutter speed) verse any other camera setting. So you are telling the camera to use, let’s say 1/60, and change aperture or ISO to make the exposure work.

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04-24-2009, 10:02 AM   #4
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QuoteOriginally posted by DAZ Quote
Av = Aperture verse. Tv = Time verse. So for Tv it would be Time (shutter speed) verse any other camera setting. So you are telling the camera to use, let’s say 1/60, and change aperture or ISO to make the exposure work.

DAZ
I prefer Marc's "Aperture voodoo" and "Time voodoo".

04-24-2009, 11:10 AM   #5
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I guess the camera is designed by a Dutch speaking person: Tv = Tijd voorkeuze, and: Av = Apertuur voorkeuze.
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04-24-2009, 04:13 PM   #6
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Thanks you for asking this question, Red:

As a film user, I was too embarrassed to ask myself.

Last edited by Ira; 04-24-2009 at 04:52 PM.
04-25-2009, 10:54 AM   #7
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Those abbreviations started on film cameras, BTW, and were used there for many years before digital. I hadn't heard the word "verse" in this context, though - usually I hear "value".
04-25-2009, 11:15 AM   #8
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QuoteOriginally posted by Marc Sabatella Quote
Those abbreviations started on film cameras, BTW, and were used there for many years before digital. I hadn't heard the word "verse" in this context, though - usually I hear "value".

Oops. I was in a hurry (and playing hooky at work) when I answered the question. I misspelled “versus” with “verse”.

I apologies to all.

DAZ

04-25-2009, 11:59 AM   #9
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My Canon T90 manual says Aperture value and Time value.
I can't imagine it has changed in the last 24 years.

Mickey
04-30-2009, 08:27 AM   #10
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I'll vote for Voodoo.

[Atrocious wordplay/puns deleted]

But I wonder: How are dials lettered in Romance languages (French, Italian, Spanish, etc) and Eastern European and other non-Nordic tongues where Program, Sensitivity, Time, Aperture, Manual, Bulb equivalents start with different letters? Or are users everywhere (except in Kanji-land) forced to assimilate?
05-01-2009, 12:12 AM   #11
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QuoteOriginally posted by Marc Sabatella Quote
Those abbreviations started on film cameras, BTW, and were used there for many years before digital. I hadn't heard the word "verse" in this context, though - usually I hear "value".
Yes. Aperture Value. Time Value. I learned that years ago. The same question hounded me breifly. But in photography, you learn to work with what you got; even if some of the lingo is a mystery.
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