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Thread started 20 Apr 2011 (Wednesday) 09:43
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'critical focus' for a pinhole lens

 
Justinryan215
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Apr 20, 2011 09:43 |  #1

Hey all, I was just wondering at what distance I could achieve "critical focus" with my T1i and a bodycap-pinhole lens? I understand the whole "infinite depth of field", but does that mean "everything out of focus"?

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Apr 20, 2011 09:44 |  #2

I think it means everything IN focus but I'm no pinhole expert...


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Justinryan215
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Apr 20, 2011 09:47 as a reply to  @ Mike's post |  #3

That's what I thought too, but it's not....maybe I did something wrong?

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robertwsimpson
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Apr 20, 2011 09:51 |  #4

dude, you're taking a photo through a hole in a piece of plastic. Don't expect to get great resolution.




  
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Justinryan215
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Apr 20, 2011 10:03 as a reply to  @ robertwsimpson's post |  #5

lol...yeah, I figured thaat into the equasion, I was just trying to figure out if the images taken with it was supposed to loook like what I see when I take my glasses off....
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Apr 20, 2011 10:28 |  #6

sounds about right to me, although I've never tried it. Post up a sample!




  
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robertwsimpson
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Apr 20, 2011 10:30 |  #7

http://www.flickr.com/​search/?q=t1i%20pinhol​e (external link)




  
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Chippy569
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Apr 20, 2011 10:58 |  #8

[edit]nvm


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Justinryan215
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Apr 20, 2011 11:03 as a reply to  @ robertwsimpson's post |  #9

my images are DEFINITELY not that sharp...

I will post some pics later...

Justin


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'critical focus' for a pinhole lens
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