Guidelines for digital images: "SXGA+" (1400 x 1050)


We have published guidelines for digital images for our Exhibition's Inter-Club Digital Image Knockout Competition and for our internal "formal" Clubworker Competitions and the Exhibition.

Similar guidelines apply to various other events using the "SXGA+" (1400 x 1050 pixels) format. Such events include:

This page identifies the core guidelines for projected digital images that apply to all of the above. This page will be referenced from various other pages as required.

Image display size, file type, colour space:

Each image must be in JPEG format. (That is not to say its file extension must be "JPEG").

It must be exactly 1400 pixels wide and 1050 pixels high, and if the picture itself is smaller than 1400x1050 pixels, the remaining area must be a chosen background, for example black.

It should be converted (if necessary) to sRGB colour space, and ideally the colour profile should be embedded.

(Parameters such as "DPI" or "PPI" will be ignored).

Verifying conformance to the guidelines:

Experience shows that up to half of all digital images submitted to our events, such as internal and Exhibition competitions, are incorrect in some way!

It is recommended that members open all of their images in Photoshop or similar for a last check before submission. This only takes seconds, but can save a lot of time and anguish.

The screen-shot here shows what the "Info" panel in Photoshop CS3 looks like with a conformant image, if it is configured suitably. To use it for this purpose, Photoshop itself needs to be using "pixels" as its "Ruler Unit", using Edit > Preferences > Units & Rulers. Then the "Info" panel needs to display the illustrated information, using Palette Options via the drop-down menu shown in red to set all the "Document ..." information.

The essential details are highlighted just for this page:

Information about projector calibration:

We have invested in a state-of-the-art 1400x1050 (SXGA+) resolution projector (Canon XEED SX60)

We have calibrated our Shuttle PC + Canon Projector system using our Spyder 2 Pro.


(Guidelines revised 24 October 2008)