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Photography Question 
Howie Nordström
BetterPhoto Member Since: 3/11/2005
 

2 Qs re. f/stops


In Jim Zuckerman's fundementals of photography course he has a great explanation of “Shutter Speeds in Combination with F-Stops”.

I have a couple of questions tho’.

Why are they called f/stops?
Why are the largest aperatures smaller numbers and the smallest aperatures larger numbers?

The only way I’ve previously been able to remember f/stops is by thinking “large number=large depth of field, small number=small depth of field”. Yet this doesn't help me with the half/double relationships (increasing the light by four times with the shutter speed requires a four times reduction with the lens aperture). My technical inquisitiveness can’t help but ask the above mentioned questions in hopes of it all making a higher degree of sense. Technical mumbo jumbo and catchy rymes are sometimes both necessary for me to get things to thoroughly connect. :)


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4/6/2005 2:38:49 PM

 
Christopher A. Vedros
BetterPhoto Member Since: 3/14/2005
  There was a good discussion about f-stops here just a couple of days ago, and things got about as technical as could be. Try this link:

http://www.betterphoto.com/forms/qnaDetail.asp?threadID=15282

or just cut & paste it.


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4/6/2005 3:14:15 PM

 
Christopher A. Vedros
BetterPhoto Member Since: 3/14/2005
  Let's try this:


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4/6/2005 3:23:49 PM

 
Christopher A. Vedros
BetterPhoto Member Since: 3/14/2005
  or let's not.


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4/6/2005 3:24:43 PM

 
Howie Nordström
BetterPhoto Member Since: 3/11/2005
  Thanks for the heads up. I've responded in that thread.


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4/7/2005 8:34:29 AM

 
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