Thanks for all the kind feedback. The original size image is
here.
The major technical specs are Pentax K10D, 3 sec exposure, ISO 100, tripod and (of course) no image stabilization, the lens was an smc PENTAX-DA 18-55mm F3.5-5.6 AL set to 20 mm, aperture f/27, + 2 EV exposure compensation (for some reason), ND 4.0 filter to allow the long exposure time and a Cokin gradient filter to tame the sky (which is cropped out, anyway), 2-second self-timer used.
Here is a comprehensive list of technical details:
Camera: Pentax K10D
Exposure: 3
Aperture: f/27.0
Focal Length: 20 mm
ISO Speed: 100
Exposure Bias: +2 EV
Exposure Program: Aperture-priority AE
Color Space: sRGB
Sensing Method: One-chip color area
Custom Rendered: Custom
Exposure Mode: Manual
White Balance: Manual
Focal Length In35mm Format: 30 mm
Scene Capture Type: Standard
Subject Distance Range: Distant
Quality: Best
Focus Mode: AF-S
AFPoint Selected: Auto
Exposure Time: 3
FNumber: 27.0
ISO: 100
Exposure Compensation: +2.0
Metering Mode: Multi-segment
White Balance: Shade
White Balance Mode: User-Selected
Saturation: Normal
Contrast: Normal
Sharpness: Med Hard
Picture Mode: Aperture Priority; 1/2 EV steps
Drive Mode: Single-frame; Self-timer (2 s); Shutter Button; Single Exposure
Color Space: sRGB
Lens Type: smc PENTAX-DA 18-55mm F3.5-5.6 AL
Camera Temperature: 18 C
AELock: Off
Noise Reduction: On
Shake Reduction: Off