In response to several inquiries, Pro Media Images set up a small gallery of images for anyone to test download speeds and image quality. Also notice the watermarks do not appear on downloaded images. The password for this gallery is "test" (type test without the quotation marks).
There are five test images, copyright free, do what you want with them. To check your screen or print colors, a description of the images is provided below the link.
All five images are sized for 4" x 6" printing. (For the techies, the embedded color profile is sRGB IEC61966-2.1, used by most pro printing labs.)
With a residential DSL line a single image download should take less than 7 seconds. On satellite and radio-link connections, a download of one of these images usually takes less than 12 seconds. Your actual download times may vary according to your type of internet connection.
TransTest001 - Decorative crushed reddish "lava" rock with some grey and black. "Transmission Phase Test IM_001" in light grey lettering, brely visible in lower left.
TransTest002 - Black and white mottled background with a solid white arrow, a light grey fading to dark grey arrow and a solid black arrow. "Transmission Phase Test IM_002" in solid black letters in middle of image.
TranTest003- A solid white background with "Transmission Phase Test IM_003 in medium grey". You should see a solid back diamond pattern, a medium blue diamond pattern, a heavy magenta (pink) diamond pattern and a yellow fading to olive diamond pattern.
TransTest004 - A polished grey granite background (grey, black, yellow and white). "Transmission Phase Test IM_004" fading from green to yellow to orange, then violet to blue to baby blue.
TransTest005 - A portion of a X-rite Color Checker. Light greys and chacoal patches on top half. The bottom patches are a pale peach, cerulean (baby) blue, cistron (medium camo) green and lavender. "Transmission Phase Test IM_005" is pure white lettering.