at ???
Subject: Re: [pinhole-discussion] f stops
Let's not fight!!! I actually bonded with my husband, a mathematician,
using Guillermo's excellent explanation of f-stops. While I do alot of
photo, teach it, and also pinhole on occasion, I am a complete voyeur to the
list. But I DO read
Let's not fight!!! I actually bonded with my husband, a mathematician, using
Guillermo's excellent explanation of f-stops. While I do alot of photo, teach
it, and also pinhole on occasion, I am a complete voyeur to the list. But I
DO read it and think the knowledge that is shared by the likes
- Original Message -
From: Andy Schmitt aschm...@warwick.net
ow now done get like that... I was just kidding...tho not about the great
explaination part...I'll use it with my class next summer 8o)
Hope your back gets better... Btw are you still making precision PH's for
others?
- Original Message -
From: Andy Schmitt aschm...@warwick.net
Gill
you have WAY too much time on your hands..
but a great explaination..I'll save this one
thanks
I am sorry Andy, was off, back was acting up, weather lousy, no reason to go
out. From now on I will only reply
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-discussion] f stops
- Original Message -
From: ragowaring ragowar...@btinternet.com
They follow a geometric progression that make the f/stops increase by a
factor of square root of 2
Wow!, is it really that simple. Of course
on 31/10/01 3:18 pm, Guillermo at pen...@home.com wrote:
- Original Message -
From: ragowaring ragowar...@btinternet.com
They follow a geometric progression that make the f/stops increase by a
factor of square root of 2
Wow!, is it really that simple. Of course, it all makes
Beware of virus !
Ricardo.
- Original Message -
From: Guillermo pen...@home.com
To: pinhole-discussion@p at ???
Sent: Tuesday, October 30, 2001 4:55 PM
Subject: Re: [pinhole-discussion] f stops
- Original Message -
From: Gregg Kemp gregg.k...@sas.com
To: pinhole
Yes, all Philip messages are blank.
Ricardo.
- Original Message -
From: Philip Arny philip.a...@tpl.org
To: pinhole-discussion@p at ???
Sent: Tuesday, October 30, 2001 3:58 PM
Subject: Re: [pinhole-discussion] f stops
___
Pinhole
So, the ratio between the diameters of consecutive stops is the square
root
of two. Because in the F/stop formula, the diameter of the opening is in
the denominator, the actual f number increases by a factor of two, as the
diameter decreases by a factor of two.
oops. factor of the square
on 30/10/01 3:06 pm, Guillermo at pen...@home.com wrote:
- Original Message -
From: ragowaring ragowar...@btinternet.com
Anyway, enough of an introduction; could anyone please tell me how to
calculate the natural progression of f stops doubling exposure from one
number to the
- Original Message -
From: TSHACK tsh...@silver-bayou.com
How would I join the cameramakers list? Is that a newsgroup, or an email
list?
Email list, similar to our beloved pinhole list.
Here is some info on it:
Cameramakers mailing list
cameramak...@rmp.opusis.com
I wrote to Philip asking if he was having a problem with his mail and if
I
could help. I haven't gotten a reply, but noticed he continues to send
empty messages.
He's also sending blank msgs to the cameramakers list, also
How would I join the cameramakers list? Is that a newsgroup, or an
- Original Message -
From: Gregg Kemp gregg.k...@sas.com
To: pinhole-discussion@p at ???
Sent: Tuesday, October 30, 2001 1:02 PM
Subject: RE: [pinhole-discussion] f stops
I wrote to Philip asking if he was having a problem with his mail and if I
could help. I haven't gotten a reply
His messages to me directly are blank also.
- Original Message -
From: Gregg Kemp gregg.k...@sas.com
To: pinhole-discussion@p at ???
Sent: Tuesday, October 30, 2001 10:02 AM
Subject: RE: [pinhole-discussion] f stops
I wrote to Philip asking if he was having a problem with his mail
-bayou.com]
Sent: Tuesday, October 30, 2001 12:54 PM
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-discussion] f stops
All of Phil's messages are blank. Just testing to see if
mine will be.
- Original Message -
From: Philip Arny philip.a...@tpl.org
To: pinhole
All of Phil's messages are blank. Just testing to see if mine will be.
- Original Message -
From: Philip Arny philip.a...@tpl.org
To: pinhole-discussion@p at ???
Sent: Tuesday, October 30, 2001 7:11 AM
Subject: Re: [pinhole-discussion] f stops
- Original Message -
From: ragowaring ragowar...@btinternet.com
Anyway, enough of an introduction; could anyone please tell me how to
calculate the natural progression of f stops doubling exposure from one
number to the next, or post a list of these.
They follow a geometric
Each succeeding fstop is simply the diameter of the aperture divided into
the distance from pinhole to film. The specific numbers are traditional and
represent a set of diameters that yield aperture areas that are double or
half the adjacent one.
- Original Message -
From: ragowaring
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