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08/14/2005 02:28:52 AM · #1 |
Stillw aiting for my Tamron 28-75, the shop just loaned me a Canon 28-135 IS lens. No instructions with it. IS switch has two positions; a line and a circle. Which one is on, which one is off? Dumb question, but there ya have it...
R.
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08/14/2005 02:31:56 AM · #2 |
| Line is on -- "contact made" -- and the circle is off, for contact broken. It's an almost universal on/off logo now, look by any power switch on electronics. |
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08/14/2005 02:33:39 AM · #3 |
or perhaps could also be related to computers,
1 is on
0 is off
everything is made up of 1's and 0's |
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08/14/2005 02:34:47 AM · #4 |
| The constant line means ON... the circle means OFF |
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08/14/2005 02:36:12 AM · #5 |
| But the computer term came from the position of the switches in the transistors, showing an electrical flow (a value) or no flow (zero value). |
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08/14/2005 02:39:18 AM · #6 |
My theory: the line is on, because going in a line you'll end up somewhere, circle is off, because you'll just end up back where you started... :-P
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08/14/2005 03:01:54 AM · #7 |
To be honest, I'm a bit of a luddite and I've never quite figured out that little "universal" symbol, largely because everything I have is OBVIOUSLY on or off when you throw a switch. Thanx for the info.
R.
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08/14/2005 03:05:32 AM · #8 |
And here's a shot of sofia asleep, at 60mm and 1/4 second, tungsten light, hand held, with IS on. Amazing, actually...
Robt.
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08/14/2005 03:35:13 AM · #9 |
| why wouldnt the word on and the word off work? go figure... |
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08/14/2005 05:54:30 AM · #10 |
Originally posted by gusto:
why wouldnt the word on and the word off work? go figure... |
Because the 20D with that lens wont do voice activation. It needs to be 'L' to do voice.
:-).
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08/14/2005 06:41:57 AM · #11 |
Originally posted by gusto:
why wouldnt the word on and the word off work? go figure... |
1. This item is probably sold in non-English speaking places.
2. The words take up more room and are harder to creazte the patterns for. |
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08/14/2005 08:02:54 AM · #12 |
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