Questions tagged [pinhole-cameras]

A camera that uses a tiny ("pinhole") aperture in a light screen (flange) as a lens.

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3answers
79 views

Is there an instant film I can use for developing pinhole photos with high school students?

I'd like to make pinhole cameras as a project with my yearbook class. The camera looks easy to make. I'm worried about developing. Is there an instant film I can use, or should I make a little dark ...
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3answers
2k views

Will a pinhole camera work with instant film?

I am making a pinhole camera for a school science fair. Is it possible to use Instax Mini Film instead of the long process of developing photo paper? If so, would I use the same design, and just swap ...
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1answer
200 views

What is this fine grid on an image made using pinhole and Nikon D200?

I am a longtime photographer but not such an expert on the technical aspects of optics and digital sensors. I've been experimenting with my Nikon D200 and a home-made paper pinhole, coloured black on ...
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3answers
5k views

Why is the hole in a pinhole camera usually a circle?

I know that for pinhole cameras and camera obscuras the holes are usually round (they are circular). But I don't see the link between the shape of the hole and the formation of the image.
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2answers
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How does imaging plane's distance affect the picture in a pinhole camera?

I'm studying pinhole cameras and camera obscuras to better understand how light behaves and how pictures are created. I'm trying to understand how positioning the imaging plane ( I think of it as a ...
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3answers
233 views

Real world differences in pinhole sized apertures

I'm interested in experimenting with a pinhole camera and am considering the Ilford Obscura or Titan. The focal lengths are slightly different and not of concern for me. What I'm really interested ...
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3answers
1k views

All images are out of focus with pinhole body cap

I bought a "Rising" brand pinhole lens. It's a piece of drilled aluminum fixed to a body cap, the kind of plastic cap that covers the body when there's no lens attached. I have a Pentax K-50, and I ...
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4answers
552 views

How properly expose a long exposure in daylight?

I was shooting some lake waves with some nice color in them, and I wanted to do a long exposure to smooth out the wave and color, similar to the effect you see from a long exposure of whitewater or a ...
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1answer
669 views

Resolution of a pinhole 'telescope' to observe Sun

As a follow-up to this question, I was thinking about how one might build a pinhole camera with extremely long focal length to photo the Sun with a DSLR. Imagine that pinhole is at the end of a long ...
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3answers
508 views

Can I combine a pinhole bodycap with macro extension tube to adjust focal length?

I'm interested in trying out a bodycap style pinhole on my DSLR (a Nikon D3300 in my case). Can I combine this with a macro extension tube to adjust the focal length? Calculators such as Mr Pinhole ...
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3answers
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Concept of focus for a pinhole camera?

Is there a concept of "focus" and thereby defocus for a pinhole camera? If yes, then what is it? If it is assumed that only one ray of light enters in through the pinhole from every point on the scene,...
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3answers
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How can I test that the image is inverted in a pinhole camera?

I learned that a pinhole camera inverts the image on the film strip: Is it to possible to test if the image gets inverted without the film strip on which the image is projected? For example: I made ...
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2answers
481 views

Developing pinhole camera photos - pictures turn cloudy

I recently made my first pinhole camera and started taking photos with it. It's a Illy coffe can camera with a 0.35 mm pinhole aperture. I am using an old pack of Ilfobrom FB IB2 photo paper. It's 17....
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4answers
609 views

What lens designs are sharper than a pinhole lens but also allow for multi-month exposures?

I have a homemade pinhole camera (film) that I use for taking super long exposures (multiple months). And while the results are fun, I would like to improve the sharpness of the image. Is diffraction ...
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1answer
375 views

Can I get Photographic Paper with lower ISO?

I have been playing around with pinhole cameras using photographic paper (instead of film). Great fun. But when I buy photographic paper, I don't seem to have any options for different ISOs, like I do ...
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1answer
2k views

Easy DIY photo paper? [closed]

I have no film for my pinhole camara, and i can't buy any. how can i take easy safe photos? I can't buy anything. I WILL ACCEPT ANYTHING. EVEN LEAVES.
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4answers
322 views

Are there super-macro lenses for getting “inside”?

As a follow-on to the question How can one capture gun bore shots? I'm wondering how we can get a wide perspective inside a very small space. For example, I like this shot of a .45" barrel with a ...
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1answer
590 views

Medium / Large Format Pinhole Camera

I'd like to build a large format pinhole camera using photographic paper as the medium. I've found several articles and how-to guides for building small/medium format 4x5 pinhole cameras but nothing ...
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2answers
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Where can I obtain direct positive paper?

I want to build a pinhole camera, make pictures straight onto paper and develop them myself. From my research online, it seems I need "direct positive" paper. Anywhere I look, I find Harman Direct ...
11
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1answer
8k 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 ...
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2answers
519 views

Can extension tubes be used to zoom in in pinhole / zone plate photography?

In a recent question it was stated that You cannot change the focal length of the zone, it is fixed and a characteristic of the physical dimensions of the camera As far as I know, focal length of ...
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644 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 a ...
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1answer
162 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 ...
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How to take extremely long (multiple month) exposure photos?

Was just going through an article where it was mentioned that Michael Wesely took a photo of a building being destructed and constructed and the shutter was open for 34 months. How is it possible to ...
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3answers
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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 ...
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4answers
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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) ...
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4answers
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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?
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1answer
626 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 ...
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2answers
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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), ...
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4answers
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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 ...
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3answers
1k 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 ...