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3
votes
1answer
93 views

How to calculate the optimal pinhole size?

As far as I've understood, optimal diameter for pinhole size is calculated by formula where d - the optimal diameter for pinhole c - constant f - focal length (distance between pinhole and ...
10
votes
4answers
777 views

Can a dSLR be safely made into a pinhole camera?

What exactly is pinhole camera? The wikipedia article says A pinhole camera is a simple camera without a lens and with a single small aperture — effectively a light-proof box with a small hole in ...
6
votes
2answers
210 views

Whats the approximate aperture of a pinhole camera?

There are plenty of different pinholes you can make! Assuming I am being a little bit less creative and I am making a matchbox pinhole camera lens using a drawing pin in a sheet small sheet from an ...
8
votes
2answers
161 views

What are the challenges of creating a pinhole camera with short focal length?

I have found two challenges of creating a pinhole camera with short focal length (by focal length, I mean the distance from the pinhole to the film): Pinhole size: Short focal length means we need ...
2
votes
1answer
95 views

How to set up a large pinhole photography competition?

I'm looking to set up a large pinhole photography competition in my city. This competition would be open to members of a small college within this city. The plan is to leave a number of pinhole ...
5
votes
4answers
449 views

What's the difference between vignetting and pinhole?

Sometimes people say that a lens has bad vignetting but it looks very similar to the effect of pinhole (darkened edges). What's the difference? If someone asked to have a vignetting effect (in PP) ...
5
votes
4answers
542 views

Are there any pinhole “lenses” available from lens manufacturers?

I know that it is possible to make your own pinhole, but do lens manufacturer's make pinhole "lenses" that include aperture data, etc? If so, who makes them?
6
votes
1answer
267 views

How can I shoot wide angle zone plate photography?

I like the look that is possible with zone plate photography. I've google around a bit and it seems that pinhole and zone plate photography on a DSLR, especially a crop body DSLR, results in medium ...
2
votes
2answers
2k views

Why does depth of field occur?

I wonder why depth of field occur in the first place. This is not a question about what changes the effect/size of field. We all know that. Aperture, Focal Length, Focus Length (distance to subject), ...
5
votes
4answers
883 views

DIY pinhole lens' aperture is ƒ00, which can't be changed and pictures turn out mostly black

I just made a pinhole lens for my Canon EOS 1000D (Rebel XS), but now I have no idea what to do next. The bulb-mode is on and ISO is 400. Camera says the aperture is ƒ00, which I can't change. What ...