Dosch HDRI: Stormy Skies contains 20 HDRIs.
The resolution of the Spherical Map HDRIs is 13,196 x 6,598 pixel. Additionally, each HDRI is provided in the resolution of 2,000 x 1,000 pixels.
Radiosity - and therefore the use of HDRIs is directly supported in many 3D-applications like Lightwave (version 6.0 and higher), Softimage|XSI, Maya & Mentalray, Pixar RenderMan, Bryce 6, Autodesk VIZ, messiah:render (Arnold), InSight (Integra), 3ds-max & VRay, 3ds-max & Brazil r/s (Splutterfish), 3ds-max & finalRender (Cebas), Cinema4D Version 8.1 and more. For further HDRI-rendering tools options the documentation of the used 3D-program should be consulted.
And each HDR image is provided in the industry standard .HDR. So they are useable in most rendering applications.
HDRI - Spherical Map (3.820,45 MB)