Focal length/depth of field/f/stops
Nov 29, 2011 11:12:00 #
Some of your questions indicate laziness; you want answers without the work. Go to a library or a Barnes & Noble and start reading about photography. I taught myself 69 years ago and now teach others.
Nov 29, 2011 11:19:04 #
Nov 29, 2011 11:34:10 #
This interesting Web site helps you learn the operational aspects of a DSLR without a camera:
The SLR Camera Simulator: http://camerasim.com/camera-simulator.html
This Web site will explain ISO, aperture, and shutter speed, and their relation to one another:
http://www.cameraporn.net/2007/12/24/aperture-iso-and-shutter-speed-the-good-kind-of-threesome/
The SLR Camera Simulator: http://camerasim.com/camera-simulator.html
This Web site will explain ISO, aperture, and shutter speed, and their relation to one another:
http://www.cameraporn.net/2007/12/24/aperture-iso-and-shutter-speed-the-good-kind-of-threesome/
Nov 29, 2011 12:01:17 #
pounder35 wrote:
Since this thread is a waste of time and space I'll add to the waste. I think the formula is the square root of IR x the square root of IL divided by the square root of IR + the square root of IL.
I think you transposed the initials of Rhode Island, but you did get Illinois correct.
Nov 29, 2011 12:20:07 #
John Brown wrote:
What is focal length?
What is the focal length of a +2 diopter close-up lens?
How much does the addition of a +2 diopter add to the focal length of a 100 MM lens?
How can you have a lens that is physically longer than 18 MM and yet have a focal length of only 18 MM?
How many MMs are in an inch?
What is the name of the nearest star?
What is Depth of Field?
What is the depth of field of a pinhole camera?
When you go from f/5.6 to f/8 how have you changes the light value?
What is the focal length of a +2 diopter close-up lens?
How much does the addition of a +2 diopter add to the focal length of a 100 MM lens?
How can you have a lens that is physically longer than 18 MM and yet have a focal length of only 18 MM?
How many MMs are in an inch?
What is the name of the nearest star?
What is Depth of Field?
What is the depth of field of a pinhole camera?
When you go from f/5.6 to f/8 how have you changes the light value?
What is the meaning of life?
Which came first the chicken or the egg?
How many angels can you fit on the head of a pin?
Nov 29, 2011 12:22:35 #
JimH wrote:
traveler90712 wrote:
But if I use a UV filter, and shoot in JPEG, then there's 25.4000000000000000000001. Please critique my cat.Picky, Picky, picky. :wink:
JimH wrote:
Let's have one anyway.. I think there are 25.39999 millimeters to an inch. So there.
:)
:)
I think our cats are related :thumbup:
I should have put your cat in there too
Boy George
Your Cat
Nov 29, 2011 12:53:44 #
I'm still wondering why we park on driveways and drive on parkways????
Nov 29, 2011 13:00:42 #
billwassmann wrote:
Some of your questions indicate laziness; you want answers without the work. Go to a library or a Barnes & Noble and start reading about photography. I taught myself 69 years ago and now teach others.
He was being fecescious.
Nov 29, 2011 13:27:06 #
Nov 29, 2011 13:30:15 #
I have a interactive dictionary, looked up oxymoron.....could not see the definition, the damn mirror was in the way!
Nov 29, 2011 13:30:27 #
kg4bfl wrote:
If they're called the Three Musketeers, how come they only fight with swords? Huh? Riddle me that, Batman.I'm still wondering why we park on driveways and drive on parkways????
Nov 29, 2011 13:34:46 #
Those are a couple of scary looking kitties!
If I eat 12 inches of M & M's, how many pounds will I gain?
If I eat 12 inches of M & M's, how many pounds will I gain?
Nov 29, 2011 13:41:27 #
GEARHEAD6PACK wrote:
He was being fecescious.
billwassmann wrote:
Some of your questions indicate laziness; you want answers without the work. Go to a library or a Barnes & Noble and start reading about photography. I taught myself 69 years ago and now teach others.
He was being fecescious.
Facetious or not, it got 4 pages of replies!
Nov 29, 2011 14:06:19 #
Can anyone come up with an accurate formula as to when this thread will end? The result of all my algebraic ( is that a word?) equations always comes up as infinite. If thats the case, were all doomed to continue reading and replying until we die and after.
Nov 29, 2011 14:11:30 #
If drinking and driving are illegal, why do Bars have parking lots !
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