ART1015 Students: Feb 1 Class
Don’t forget to bring in an empty paint can, available from your local paint/hardware store. Gallon or quart size will do.
There is actually a World Wide Pinhole Photo Day – this year it falls on Sunday, April 29th. If you make a pinhole photograph that day, you can upload it to the dedicated website.
There is also a Call for Entries for a pinhole photo show entitled “The End of the World”. Plus, check out Justin Quinnell’s fantastic website, which includes a six-month pinhole exposure!
Quote from the character Penelope (Rachel Weisz) in The Brothers Bloom: “The Taj Majal taken by a fat tourist with diarrhea and a point-and-shoot camera can be the flattest, dullest, ‘Here’s us at the Taj Mahal, oh lovely lets go stick our thumbs up our asses’ picture. But you can look at the most menial everyday thing, and depending on how your pinhole camera eats the light, it’s warped and peculiar and imperfect. It’s not reproduction, it’s storytelling.”
1. What is pinhole photography?
by Larry Bullis
Pinhole photography is similar to “common photography” in most respects but differs in that the camera used has no lens. Instead, it has a very small aperture which projects an image upon the sensitized material (film or paper). This necessitates different ways of working (primarily because the exposures must be relatively long) and produces images which differ from lens images in several important respects.Where a lens forms an image by bringing rays of light coming to it from each point in the subject to a common focus, the pinhole does not focus at all. Instead, it acts as a center of projection.

Because the hole is actually not truly a point, it allows more than just one ray from each point in the subject to strike the film. We could say that it passes a small bundle of rays from each point. This is one reason why pinhole images are characteristically softer than lens images. The other reason is that some of the rays encounter the edge of the hole and are diffracted; they bend.
Since there is no focus, the sharpness of the image (such as it is; it is always somewhat “soft”) is uniform from near distance to far. In other words, there is no limitation of depth of field as there is in lens photography. Very near objects (closer than the pinhole to film distance) will however become softer due to divergence of the rays coming from each point.
2. What do I need to make a pinhole camera?
by Larry Bullis
Virtually any container capable of excluding light can become a pinhole camera. There must be a way to get a piece of sensitized material into the container, and get it out after the exposure is made. Containers have ranged from small objects such as salt shakers, through very large items such as oil drums or luggage. Even trucks and rooms in buildings have been turned into cameras as have red peppers, watermelons, and other unusual items. Pinhole photographers seem to delight in making camera s out of surprising objects. Cardboard boxes are popular, either those made for film or paper, or hand built by the photographer. Many pinhole photographers start with the Quaker Oat box; the resultant cylindrical camera gives an interesting curved perspective. Cameras built around the film transport systems taken from conventional cameras are very practical; one of the most difficult problems is how to get film in and out of the camera.The other requirement is a suitable pinhole. This can be made with or without a great deal of precision; the quality of the image will vary tremendously according to how the hole is made. One of the most common materials for making pinholes is brass shim stock or other very thin metal. There is often a great deal of discussion about methods of making the actual holes. Both the “pokers” and the “drillers” have their reasons for preferring their respective methods.
Various materials such as black fabric, black paint, black tape, etc. are needed to eliminate internal reflections and simply hold the parts together. If you wish a viewfinder on your camera, you may design and construct one but the camera will work whether or not you know what it is seeing.
One of the easiest ways to make a functional pinhole camera is to drill a hole in a body cap that fits a camera that uses interchangeable lenses. Over this hole, it is possible to tape a piece of metal in which an imaging hole is made. The lens is removed from the camera and the body cap inserted in its stead. In this way, it is possible to use the camera’s existing film transport mechanism. Film exposed in such a camera can be sent to a photofinisher for processing and printing, or finished by the photographer. This makes it possible for persons not having darkroom capabilities to practice pinhole photography.
In recent years commercially marketed cameras have become available. Some of these are truly quite excellent. For some pinhole photographers, though, designing and building the camera is a very large part of the medium’s appeal. It has b een said, for that reason, that pinhole photography is part photography and part sculpture.
3. How do I make a pinhole?
by Tom Lindsay
There are several ways to make a pinhole, and as many camps on which way is the best. I’m going to tell you how I make them, and I believe that it is the easiest way to make a pinhole.Materials needed to make a pinhole
- A 1″-11/4″ square piece of .003 brass shim stock (just like heavy aluminum foil, but brass)
- A new unsharpened #2 pencil with an eraser tip.
- A #10 sewing needle
- A 5″ square or larger piece of scrap cardboard
- A small piece of 400 grit emery paper
- A pair of needle nosed pliers (optional)
- A needle grabber (optional) you will find this at a sewing store.
- A 8x loupe or good magnifying glass
Let’s Do it!!!
The first thing that has to be done is to insert the needle into the eraser-tip of your #2 pencil. Get out the scrap of 5″ cardboard. Put it on a firm surface (the table or floor will do fine). Now grab the #2 pencil and hold the pencil vertical (straight up and down) in one hand, and hold the #10 sewing needle vertical with your other hand. Center the needle on the eraser-tip end (eye end of the needle towards the eraser) and then with a downward push (using the cardboard for a place to push the sharp part of the needle into) get the needle started into the eraser tip. You might have to try a few times before you get it to look like example #1.
![]() |
![]() |
![]() |
| Example 1 | Example 2 | Example 3 |
But it is worth getting it as straight as possible. Pull the needle back out of the eraser and start again only if you have to!!! When you are satisfied that you have it started straight, use the needle nose pliers or “needle grabber” to sink it in as far as it will go into the eraser tip.
Get out the .003 brass shim stock and lay it on the cardboard (find a fresh spot on the cardboard). Start twirling the pencil-needle tool (from now on just called the needle), like you see in example #2.
Make sure you are in the center of the brass shim stock square. Important note: The cardboard is not seen in the drawings, just imagine that it is under the brass shim stock). You will start to go through the brass shim stock as you twirl and push downward ever so slightly in a drilling motion. You can now see the needle coming through the brass shim stock as in example #3.
Pull the needle back out and you will see that you now have small burrs on the opposite side that you started from. See example #4.
![]() |
| Example 4 |
These burrs are what you will now need the 400 grit emery paper for. Sand the brass shim stock on the burred side going in a gentle circular motion with your emery paper until the burrs are gone (don’t over do this step).
Now you want to flip the brass shim stock over to the opposite side (the side that you just sanded the burrs off of). Insert the needle into the hole and repeat the twirling motion as shown in example #5.
![]() |
![]() |
| Example 5 | Example 6 |
This time you will get very little burrs on the opposite side that will look similar to those in example #4, but not as pronounced. Sand these burrs off the same way as you did earlier being ever so gentle. When you are satisfied that you have removed those burrs , stick the needle back into the hole (from the opposite side of the brass shim stock) and then CAREFULLY twirl the whole square piece of brass shim stock as shown in example #6.
It should twirl pretty easily and yet still be snug. When you have gotten to this point you may or may not have to sand some more ultra small burrs if they do show themselves on the opposite side from where you last inserted the needle. If need be, sand them!
At this point all you need to do is get out the loupe or magnifying glass and check to see if you have a nice CLEAN pinhole. If you do you are finished. If not repeat inserting the needle into the hole on the opposite side of the brass shim stock and give it another good twirl like in example #6, until you do see a good clean pinhole!!! Congratulations you now have a pinhole and know how to make one too, way to go!!!
4. What is the best size for the pinhole?
by Guillermo Peñate
The size of hole you need depends on the kind of effect you want to get. Many of us calculate the “optimum” size and then depart (or not) from it, in order to experiment. There are many formulas to calculate the “optimum” size. Optimum, in this case, means the hole that gives the “sharpest” pictures. Incidentally, the sharpest pictures may or may not be the “best” pictures for you. The formula I use is:Optimum pinhole diameter in inches = 0.0073 * SQR (focal length in inches) SQR stands for square root. For metric system the formula becomes: Pinhole diameter = 0.03679 * SQR (focal length) where diameter and focal length are in millimeters
Once you know the size of pinhole you will use, find the f/stop of your camera by dividing the focal length by the diameter. Obviously, both values must be in the same unit of measurement.
f/stop = focal length / diameter
More likely than not, the f/stop won’t coincide with a full stop. Since the progression of f/stops is not linear, to find where exactly in between stops the f/stop of your pinhole camera is, you’ll need a mathematical formula to calculate it. But that isn’t necessary due to the “imprecise” nature of pinhole. I would suggest you approximate the calculated f/stop to the next full stop (unless is really close to lower one). The reason is that pinhole exposures are more likely to be under than over-exposed.
5. How to determine the exposure time? By Guillermo Peñate
Once you know the full f/stop of your camera, it’s time to make some pictures. You then have to find the exposure your scene needs. Do it by whatever method you want. I use 2 methods. The first would be applying “Sunny16″ rule, which says that under sunny/bright conditions the exposure needed is f /16 and 1/ (film speed). For instance, if the film is ISO100 the exposure would be f/16 and 100th of a sec.The second method is taking an actual light reading of the scene. Sometimes I use a handheld meter, other times I use my 35mm camera. Let’s call “f” and “t” aperture and time, respectively . Once you have the exposure that your scene needs, you have to find the equivalent exposure for your pinhole f/stop.
You then start to double “f” until you get a value that is equal or bigger than “F”. If equal, the number of doublings multiplied by 2 is the number of f/stops separating “f” from “F”. If bigger, the number of f/stops between “f” and “F” is the number of doublings time 2 minus 1. The new exposure time (“T”) will be obtained by doubling the time “t” as many times as stops separate “f” from “F”. It is more difficult and cumbersome to say it, or write, than to actually do it.
Let’s use an 11×14 format, 6″ focal length camera as an example:
Optimum pinhole size = 0.0073 * SQR(6) = 0.018″ (approx.)
f/stop of your camera = 6 / 0.018 = 333
progression of f/stops from f/16 to above f/333 is : f/16, 22, 32, 44, 64, 88, 128, 176, 256, 352.
practical f/stop of your camera = f/352
Scene to photograph is under sunny conditions, material used as negative is B&W multigrade paper. Approximate ISO speed is 6. Therefore, using Sunny16 we should expose for 1/6 secs and f/16.
To find the number of stops separating f/16 and our camera f/stop of f/352, we double 16 until we get 352 or above. It takes 5 doublings to get to 512 (32,64,128,256,512). Since 512 is bigger that 352, we then find the stops separating f/16 from f/352 by multiplying the number of doublings times 2 and subtract 1 — 5 times 2 = 10 minus 1 = 9 there are 9 stops between f/16 and f/352. Now we find the new exposure time by doubling 9 times our time of 1/6 sec: 1/6, 1/3, 1/1.5, 1.33, 2.66, 5.33, 10.66 , 21.33, 42.66, 85.33.
The new exposure time is then = 85 seconds.
The equivalent exposure time to f/16 and 1/6 sec is f/352 and 85 seconds. I wish this were the end, but the exposure time of 85 seconds has to be corrected for reciprocity failure. There is a table that has proven very effective for me. Watch out for sailing clouds, as you might have to increase the exposure time a little more if a big one passes by. When I was making the photograph “door”, the uncorrected exposure time was 8 minutes. The multiplier according to my reciprocity table is 5 for a corrected time of 40 minutes!!! A big cloud passed by during part of the 40 minutes. I extended the time to 55 minutes to compensate. Negative material was Ilford Multigrade.
I’d like to finish saying the following: I am not an artist. I am a technician. All my studies and jobs have been in tech things (electronic, electricity, communications and computers). Nevertheless, I feel the need, sometimes the urgency, of “creating” something beautiful to me, for me and by me. To accomplish it, my idiosyncrasy request from me to learn, to the limits of my incompetence, all the science that makes pinhole work. This knowledge serves to me as a ladder to try to reach the high er plateau on which art is. Some other people are born artists, some other are lucky enough to have a very eclectic mix. The science behind pinhole, as boring and not necessary that it is for some, it is indispensable and/or interesting and /or unenjoyable f or others.
6. Books about pinhole photography
- Martha Casanave, Past Lives, (1991), David R. Godine, Boston, MA, USA ISBN 0-87923-872-0
- Adam Fuss, Pinhole Photographs (Smithsonian Photographers at Work), Smithsonian Institution Press ISBN: 1560986220
- Thomas Harding, One Room Schoolhouses of Arkansas as Seen through a Pinhole, University of Arkansas Press ISBN: 1557282714 ISBN: 1557282722
- Hans Knuchel, Camera Obscura, (1992), Lars Mueller Edition, Baden, Switzerland ISBN 3-906700-49-6
- John Warren Oakes, Minimal Aperture Photography Using Pinhole Cameras, ISBN: 0819153702 & 0819153699
- Eric Renner, Center For Contemporary Arts Staff (Editor), International Pinhole Photography Exhibition, Center for Contemporary Arts of Santa Fe, ISBN: 0929762010
- Eric Renner, Pinhole Photography: Rediscovering a Historic Technique, (1995), Focal Press, Butterworth-Heinemann, Newton, MA, USA ISBN 0-240-80237-3
- Jim Shull, The Hole Thing, A Manual of Pinhole Fotografy, (1974), Morgan & Morgan , Inc., New York, USA ISBN 0-87100-047-4
- Lauren Smith, Pinhole Vision I, LBS Produc ISBN: 0960779604
- Lauren Smith, Pinhole Vision II, LBS Produc ISBN: 0-96079612
- Lauren Smith, The Visionary Pinhole, (1985), Gibbs M. Smith, Inc., Peregrine Smith Books, Salt Lake City, USA ISBN 0-87905-206
- Ruth Thorne-Thomsen, Within this Garden, (1993), The Museum of Contemporary Photography, Columbia College, Chicago, Ill., USA ISBN 0-93026-30-3 Paper, 0-89381-549-7 Cloth
- Pinhole Journal, published 3 times a year (April, August and December) by:
Pinhole Resource
Star Route 15, Box 1355
San Lorenzo, New Mexico 88041
Tel: (505) 536-9942
(membership: incl. curators, historians, educators, students, photographers, camera clubs etc.) Also sells cameras and other pinhole related items, such as books, drilled pinholes in various sizes, zone-plates, etc. Also run workshops.
Contributors to the Pinhole Faq include:
Larry Bullis
Tom Lindsay
Guillermo Peñate
Howard Wells
George L Smyth
Brigitte Harper
Gordon J. Holtslander
Last but not least, here’s a YouTube of a pinhole on a DSLR!










Direct Sulphide toners



Why is it that we can walk every day past scenes in our own neighborhood that visitors find worthy of photographing?
More recently, Parisian-born photographers
The idea of photography as a portable media for everyone would come to fruition in 1884, when George Eastman patented the first film in roll form to prove practicable. In 1888 he perfected the Kodak camera, the first camera designed specifically for roll film. In 1892, he established the Eastman Kodak Company, in Rochester, New York. It was one of the first firms to mass-produce standardized photography equipment. The company also manufactured the flexible transparent film, devised by Eastman in 1889, which proved vital to the subsequent development of the motion picture industry.
Lewis Hine was a social justice activist. He believed that a picture could tell a powerful story. He felt so strongly about the abuse of children as workers that he quit his teaching job and became an investigative photographer for the National Child Labor Committee. Hine traveled around the country photographing the working conditions of children in all types of industries. He photographed children in coal mines, in meatpacking houses, in textile mills, and in canneries. He took pictures of children working in the streets as shoe shiners, newsboys, and hawkers. In many instances he tricked his way into factories to take the pictures that factory managers did not want the public to see. He was careful to document every photograph with precise facts and figures. To obtain captions for his pictures, he interviewed the children on some pretext and then scribbled his notes with his hand hidden inside his pocket. Because he used subterfuge to take his photographs, he believed that he had to be “double-sure that my photo data was 100% pure–no retouching or fakery of any kind.” Hine defined a good photograph as “a reproduction of impressions made upon the photographer which he desires to repeat to others.” Because he realized his photographs were subjective, he described his work as “photo-interpretation.”
