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### AuthorTopic: F stop  (Read 677 times)

#### Chris Calohan

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##### F stop
« on: February 13, 2018, 07:52:15 AM »

I've seen it written as f:/ or just f/   Is there a definitive way to write f-stop?
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#### Eric Myrvaagnes

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##### Re: F stop
« Reply #1 on: February 13, 2018, 07:59:41 AM »

Actually, I don't recall ever seeing f:/ , so I stick with f/ .

Since the "f" stands for the focal length of the lens, "f/8" means "focal length of lens divided by 8," which is correct. There is no need for a colon.

-Eric
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#### RSL

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##### Re: F stop
« Reply #2 on: February 13, 2018, 09:29:21 AM »

Exactly. It's just a mathematical expression.

#### Rob C

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##### Re: F stop
« Reply #3 on: February 13, 2018, 10:32:12 AM »

And you don't even need a medical because there's no colon involved. Not much help if its a prostate question, though. Certainly separates the men from the boys.

;-(

#### MattBurt

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##### Re: F stop
« Reply #4 on: February 13, 2018, 12:28:10 PM »

I've seen f:\ in Windows but never describing f-stop.

Since it's a ratio, I think f:8 or f/8 would technically be correct but f/8 seems to be what most people use.
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#### TimoK

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##### Re: F stop
« Reply #5 on: February 13, 2018, 12:38:56 PM »

To keep things simple /f is also written F, F8 for example. Or possibly 1:8.
In my lenses I see even 1:4/135 marking which is mathematically interesting.
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#### Chris Calohan

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##### Re: F stop
« Reply #6 on: February 13, 2018, 07:36:27 PM »

Thanks for the input and for backing my comment to a local site who chose the F:/ Stop as a logo. They have since dropped the : so all is right again with the universe.
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#### Eric Myrvaagnes

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##### Re: F stop
« Reply #7 on: February 13, 2018, 09:43:20 PM »

And so the F stops here.
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#### LesPalenik

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##### Re: F stop
« Reply #8 on: February 13, 2018, 10:17:22 PM »

Main thing is not confuse F-stop with G-spot.

#### Chris Calohan

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##### Re: F stop
« Reply #9 on: February 13, 2018, 10:42:35 PM »

That's what she said!
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#### Robert Roaldi

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##### Re: F stop
« Reply #10 on: February 14, 2018, 12:02:56 PM »

I think this has been mentioned on these pages before, but this seems like a good place to bring it up again: Battle at f-stop ridge.
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Robert robertroaldi.zenfolio.com

#### MattBurt

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##### Re: F stop
« Reply #11 on: February 14, 2018, 12:15:41 PM »

Main thing is not confuse F-stop with G-spot.

Right, you'll get totally stopped down for that.
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