File :-(, x, )
Anonymous
"my hasselblad I got cheap off ebay"

anyway, to the point...

What is the circle of confusion? (in non-moonspeak)
>> Anonymous
Wat?
INCORRECT.
>> Mr. Higgzbuffonton !!Xsltv1VWxZT
Far as I know--

What happens is that there are things that are out of focus (since its not a wall of in focus and not, but a gradual loss of focus through the depth of field [in both directions off of where you focus, though more behind than in front]) that still appear sharp.

Now, depending on size of picture, viewing distance, sensor size, and some other shit, there is an acceptable size of each point that would still have it considered sharp and in focus..

The size of each point, btw, is from the light rays converging which is what the lens does..
>> Mr. Higgzbuffonton !!Xsltv1VWxZT
an example:

10cm from your focus point at 1m the size of each point (from converged rays) is 0.020 with f/11 using a zoom at 50mm.. if this is for digital use on a 1.6x crop (like rebel series and plenty of others) than your circle of confusion is from anywhere to 0.010 to 0.019, either way, at 10cm shits out of the coc, so it won't appear in focus...
>> Anonymous
Strap yourself in, we're entering TERRAPIXEL territory!
>> Anonymous
Holy shit! 5.5 Terapixels! I never thought I'd live to see the day. Amazing. ;__;

Is it powered by 1.21 gigawatts?
>> Anonymous
>>241342
JIGGAWATTS!
>> Anonymous
>>241342
Jiggawatts, biatch.
>> Anonymous
ok, so all in all, its putting math to dof, and asking "is it in focus?". Although only one finite plane is actually 'in focus' our eyes and the ability of the lens and fstop come in to play and decide if the distance -/+ that plane it is by our perception in focus. ...right?
>> Anonymous
The world's first nuclear-powered digital camera