Pinhole Cameras construction
8 Banners vs. Zero image
Camera Obscura
Camera Builders
8 Banners vs. Zero image
The Pinhole Camera Makers
Making the Traditional Wet Plate Camera
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| The ONDU Sliding Box Pinhole camera |
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ONDU 135 pocket pinhole camera - Gadgetsin |
About Pinhole Cameras — Jeff McConnell photography
One of the distinguishing characteristics of many pinhole photographs is that they are brighter in the center, and darker at the corners – this “fall-off” can be very pronounced if the camera has a short “focal length” (distance from pinhole to film) relative to the negative size. One way to counteract this uneven exposure is to have the film follow a curved path – the closer the path gets to a circle with the pinhole at the center, the more even the exposure should be. But: the resulting images can be quite distorted. When I started designing my camera I wanted to minimize distortion, but I also wanted to minimize fall-off. I settled on a curved film plane, with the pinhole set one third of the way into the central radius of the arc, like this...
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| Mamiya C330 |
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| Mamiyaflex C2 |
Au premier plan - Reality SoSubtle 4×5
Zero 612 Basic
Zero image
Zero 2000 is a super-wide angle camera with a focal length of 25mm and it accepts 120
camerapedia wikia Zero 2000
Material: Teak Wood
Weight: 250 gm
Pinhole Size: 0.18mm
Zone Plate (Optional): 25mm with 9 zones
Focal Length: 1" (25mm)
Tripod socket: 1/4" Thread
Angle of View: 130 deg. diagonally
Dimension: 5 1/4" (L) x 1 3/4" (D) x 3 1/4"(H) including all knobs
Film Stop: F/138 for pinhole, F/47.6 for zone plate
Film Format: 120 Roll film in 6 x 6 format
Pinhole Photography: 10 Paper Cameras For Photograph Purists
Pinhole Camera by Corbis Readymech - woohome.com
This Book Has a Functioning Pinhole Camera Inside
Diploid Pinhole Camera DIY
Pinhole Diffraction - Department of Physics
A laser beam passes though a pinhole in aluminum foil, producing a circular diffraction pattern.
(Disc 23-7, 16 sec.)
greatians.com - particles-20wave
Skink laser drilled pinhole aperture 0.4mm very thin stainless steel substrate
skinkphoto US $22.95
0.3 mm Laser drilled pinhole for Skink Pinhole Pancake (Canon, Nikon, Pentax, Olympus)
RealitySosubtle 4x5 Pinhole Camera from
James Guerin on
Vimeo.
History of the pinhole camera:
Gambattista della Porta In 1593, Gambattista della Porta (1535-1615) described a process for faithfully reproducing engravings in his book Natural Magic. The apparatus used is a pinhole camera or camera obscura, which in Latin means "dark room."
Camera; PINHOLE CAMERAS CAN GIVE SURPRISING RESULTS
by Bruce Habegger
Country Scientist: Digital Pinhole Photography
"Sutton Panoramic" camera with globular lens, c. 1857, including a Silvy roll-holder back
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"Sutton Panoramic" camera with globular lens, c. 1857,
including a Silvy roll-holder back and an water filled integral spirit level. |
The Mona Lisa Pinhole-Zoneplate Field Camera, designed and built by the Renners at pinholeresource.com, shown here as it appears both opened and closed. This came out in 2003, and disappeared from their offerings in 2004 - I can find no one else who has this camera, makes me feel very lonely. :)
You can extend it to 4 different focal lengths (150mm, 120mm, 75mm and 40mm), and there is a corresponding pinhole and a zone plate for each, accessed along a sliding piece of wood on the front (no zoneplate for the 40mm setting). Takes 4x5 film holders on the back. While I have picked up some 4x5 film holders, I'm no where near ready to process sheet film or photo paper cut to fit, so I also have a Graflok back which I hope someday to attach to the camera so I can use a number of different film adapters with it (including Polaroid packfilm and 120 film). Only problem is to do that I have to work up the nerve to hack off the wooden bits glued to the back in order to lay the Graflok flush against the back of the camera - I haven't gotten up the courage yet to cut into the thing, I'm worried I'll screw it up...
A Slovenian designer
has created a range of hand crafted pinhole cameras carved out of chestnut and maple wood and held together using just magnets.
Elvis Halilovic saws a piece of wood for making a wooden pinhole camera at the Ondu design and fabrication studio in Lopatnik village near Velenje.
ONDU Unveils Its Mark II Line of Handcrafted Pinhole Cameras with Improvements
The remarkable pinhole cameras hand carved from a maple tree and held together with magnets
ONDU - HANDCRAFTED PINHOLE CAMERAS
FAUX ondu
1000 ideas pinhole cameras
Step 5: Pinhole Camera Design, Part III
OUGD401 From Theory Into Practice - Research
BUILD A 35MM PANORAMIC PINHOLE CAMERA
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| 35mm Panoramic Pinhole Camera - www.diyphotography.net |
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| pinhole_sketch--35mm---www.diyphotography.net |
THE BATTLEFIELD PINHOLE CAMERA - 3x35mm
P612v5.0 – Curved film plane 6×12 pinhole camera
Pinhole Pinhole Photography - History, Images, Cameras, Formulas
According to Renner (1995: 117) most formulas used today are of the following general form:
r = sqrt (l * c * f)
r = pinhole radius
l = wavelength of light
c = a constant, usually a decimal fraction between 0.5 and 1
f = focal length
Platt (1989:73) provides the following optimal pinhole formula:
d x d = f/k, where k is a constant of approx. 1300
Dobson (1991) provides this formula:
d = sqrt (f)/25
Lord Rayleigh's formula and those published by Platt and Dobson all give somewhat different results. Andrew Davidhazy of the Rochester Institute of Technology lists several
other formulas in a posting on the net.
Four, slightly different, charts of optimal pinhole diameters are reproduced below. Some of the charts have been simplified by leaving out references to needle numbers. Holter's chart, published in Norwegian, has been translated by me. Platt's chart differs from the others by consistently giving smaller apertures.
Bogre (1988)
| Focal length | Best aperture diameter | Equivalent f-stop | Exposure factor for f/22 |
|---|
| 50 mm | 0.29 mm | f/174 | 63 x |
| 75 mm | 0.35 mm | f/213 | 94 x |
| 100 mm | 0.41 mm | f/246 | 125 x |
| 125 mm | 0.45 mm | f/275 | 157 x |
| 150 mm | 0.50 mm | f/203 | 188 x |
| 200 mm | 0.57 mm | f/348 | 250 x |
| 250 mm | 0.64 mm | f/389 | 313 x |
| 300 mm | 0.70 mm | f/426 | 376 x |
Platt (1989)
| Focal length (mm) | Pinhole diameter (mm) | f-stop |
|---|
| 130 | 0.33 | 380 |
| 210 | 0.40 | 500 |
| 260 | 0.46 | 550 |
| 320 | 0.50 | 650 |
| 420 | 0.58 | 690 |
| 550 | 0.66 | 800 |
| 650 | 0.74 | 930 |
| 750 | 0.79 | 960 |
| 1000 | 0.91 | 1120 |
Holter (1990)
| Focal length (mm) | Pinhole diameter (mm) | f-stop | Exposure factor for f/16 |
|---|
| 10 | 0.14 | 70 | 20 |
| 20 | 0.20 | 100 | 40 |
| 30 | 0.24 | 125 | 60 |
| 40 | 0.28 | 140 | 80 |
| 50 | 0.31 | 160 | 100 |
| 60 | 0.34 | 180 | 125 |
| 70 | 0.37 | 190 | 140 |
| 80 | 0.40 | 200 | 160 |
| 90 | 0.42 | 214 | 180 |
| 100 | 0.45 | 220 | 190 |
| 150 | 0.54 | 280 | 300 |
| 200 | 0.63 | 318 | 400 |
| 250 | 0.70 | 360 | 500 |
| 300 | 0.78 | 380 | 560 |
| 350 | 0.84 | 418 | 700 |
| 400 | 0.89 | 450 | 800 |
Fuller (1992)
It should be borne in mind that for most purposes the diameter is not really critical, as the different values in the charts above may demonstrate.
Tips for the Construction of a Camera Obscura - René Smets
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| American walnut pinhole camera |
René Smets
American walnut pinhole camera
2003
Colour image
Provided by the artist - René Smets
LL/45977
Negative size 6x17 cm
focus = 75 mm
F = 250
Made from American walnut
Film detection with LED
With timer and two viewers
Medium format bamboo pinhole camera with 3 frame format: 6x6, 6x9, 6x12
120 film
frame: 60x60, 60x90, 60x120 mm.
aperture: f/123
focal lenght: 37 mm.
pinhole size: ⌀0.3 mm.
standard tripod mount.
dimensions: 205x100x65 mm.
Chamaeleon Panorama 618 with exchangable lens boards - skinkpinhole - Juergen Kollmorgen
initially I designed this pinhole / lens hybrid panoramic camera for myself. It has exchangeable lens boards and produces panoramic photographs in 6x18 cm format. The curved film-plane helps to minimize vignetting (light fall-off). It's adjustable film-chamber allows the use of different pancake-style wide-angle lenses, like Schneider Angulon 90mm or Symmar 100mm. Some limited edition collectors' cameras will be available in ebay soon...
http://skinkpinhole.com
Swing lens panoramic camera
HOW TO BUILD A PANORAMIC CAMERA
Giorgio Carboni, November 2002
Translation edited by Charles and Mary Perry
In this type of camera, the vertical field is small in relation to the horizontal one. This is justified because subjects for panoramic shots, especially if they are distant, are usually arranged along the horizon. But what if your shot is a cityscape with tall buildings where a greater vertical field would be useful? To face this problem, this camera's objective has been mounted with an upward "shift", allowing the camera to shoot a wider field in this direction (figure 10).
This shift is also advantageous when shooting a subject from a high position, because by turning the camera upside-down, you will be able to take a wider angle downward.
The shift of the objective is 11 mm and allows the camera to obtain an angle of 28 degrees above the line of the horizon and 13 degrees 30 minutes below the horizon for a total of 41 degrees 30 minutes. You must be sure that the objective you want to use has enough area of coverage to avoid vignetting. If the objective won't shift that much without vignetting then you must reduce or do away with shift, or obtain another objective. If you do not understand this business of "shifting" the lens and "vignetting" then I recommend you do some research on those subjects in relation to view cameras.
Camera opened to show the film. The feeding direction is from left to right. The two little central columns do not have any role in the arrangement of the film and serve only to join the upper and the lower plates and to keep them at distance.
SOME PANORAMIC PICTURES
source
DÍRKOVÁ KOMORA - Jakub Feranec
I Adore, the 6x17 camera
