| Subject | Who? | Photography: Barry Pearson. Engineering: Peter Hunt. |
| What? |
Physiograms and Lissajous Figures. "Lissajous Lab". The light was suspended from a compound pendulum. (A rigid body with distributed mass able to freely pivot about a horizontal axis which does not coincide with the centre of gravity. A long rigid pole pivoted near the middle, and with weights sliding along either section). The camera was typically moving, either on its own suspended platform, or on a record turntable. |
|
| Where? | Taken in Birmingham, England, at various times during 1963/64. | |
| Original | Material |
About half used 35mm Plus-X black & white negative film. The rest used a film with print-emulsion, so that it could be used in the camera in 2-inch strips under safe-light and developed in print-developer after each run. (This enabled the results of each run to be visible within about 3 minutes, 2 minutes for development and about 30 seconds for the stop-bath). |
| Pre-web | Format |
For black & white versions, Photoshop (PSD) file, Greyscale, Dot Grain 15% For coloured/filtered versions, Photoshop (PSD) file, Adobe RGB (1998) 24 bit colour, or sRGB 24 bit colour. |
| Size | Various, typically about 2100 by 1500 pixels, about 2 megabytes |
These were scanned from old (40 year old) negatives, then cropped and rotated if necessary.
Image size - crop, sometimes rotate.
Image adjustment - curves, clone tool.
Presentation features - automate - fit image, save as JPEG.
These started with the above scans, plus the use of lots of Photoshop filters from the Filter Gallery, and in a couple of cases, Liquify.
Image adjustment - curves, clone tool.
Filter Gallery - much use made of Plaster, Neon Glow, and Plastic Wrap
Presentation features - automate - fit image, save as JPEG.
Layers (except adjustment layers). Many of the other tools and filters, except occasional use of "unsharp mask".
| Page last updated: 18 October, 2004 | Home page | © Copyright Barry Pearson 2004 |