6 month pin hole camera photo

[hepburn]

Anyone see this rather interesting photo in the Telegraph?

http://www.telegraph.co.uk/news/new...-landmark-captured-over-six-month-period.html

 

[Matt Sayle]

Wow that is fantastic

 

[chilliz]

Incredible!!

 

[MichaelPlace]

There's a joke in there about people from Bristol not being able to develop much past the pin hole camera in the technology stakes but i'll leave it!

What a great image, and what patience, 6 month exposure!

 

[jgs001]

that's amazing, What a star trail shot

 

[welly]

6 months? How is that not massively, massively over exposed?

 

[stellarbeam]

WOW!!

 

[welly]

Oh, found a bit of information on this. I'm going to make one.

http://www.solargraphy.com/index.php?option=com_content&task=view&id=10&Itemid=11

 

[hepburn]

There's a joke in there about people from Bristol not being able to develop much past the pin hole camera in the technology stakes but i'll leave it!

What a great image, and what patience, 6 month exposure!

And I thought the joke was bristol people have yet to fully develop

 

[purplepaul]

made one of these in college last week using a shoe box. it was just like being on blue peter

i might make some of these smaller ones and do long exposures

 

[MisterE]

You could put one of these where I work and still capture images of a couple of people there.

 

[Just Dave]

wow thats amazing,

 

[antc]

Stunning!

 

[Poppy]

its amazing! how awesome is that?X

 

[Messiah Khan]

That is incredible. Im tempted to try that myself now.

 

[kalibre]

I'm confused, how did he 'know' that 6 months was about the right exposure? I mean do they make meters for that?

 

[Tim Sainsbury]

You'd be a bit bored, without your camera for 6 months!

 

[A.Gibson]

wow! that is amazing im tempted to try this too.lol

 

[praxis]

I`d be impressed if it was handheld!

 

[GeorgeFirth]

I`d be impressed if it was handheld!

 

[iliria]

wow

 

[hepburn]

Thanks for all the post guys and gals. Glad everyone enjoyed the link

 

[Rob.Marsh]

6 months? How is that not massively, massively over exposed?

I'm confused, how did he 'know' that 6 months was about the right exposure? I mean do they make meters for that?

Without wanting (or pretending to have a vast understanding) to go all mathmatic on you, I believe it was Lord Raliegh who worked out an equation to find the optimal aperture diameter for Pin Hole cameras.

That, the inverse square rule and other focal plane calcs would give you a rough indication of where to start but I suspect that a vast amount of trial and error was applied!

It is an awsome and iconic photo though.

Rob

 

[martynbez]

amazing!

 

[Jamesbuk]

For those wondering about the aperture

From Wiki

"

where d is diameter, f is focal length (distance from pinhole to focal plane) and λ is the wavelength of light, all expressed in meters."

Incredible shot! - I find it funny how theres more overcast days during the summer period of the shot compared to the winter one

We've done pinhole cameras in my photography class.. unfortunately we only had exposure times of about 6 seconds compared to the 6 months

Regards, James

 

[Craikeybaby]

Ooooh, I have some photographic paper lying around somewhere, I might try something along those lines...