SUMMARY
Keith Cooper tested the limits of 5MP raw files from a 2002 Olympus E-20 camera, upscaling them with Topaz Gigapixel AI for A3+ metallic prints. The process involved enlarging the 2,560 x 1,920 pixel files to approximately 10,000 x 8,000 pixels before output sharpening. Cooper also addressed raw file compatibility issues, optical fringing correction specific to the camera, and post-upscaling adjustments in Photoshop and Nik Collection for grain and print sharpening.
TAKEAWAYS
5MP raw files from a 2002 camera were tested for large print upscaling.
Topaz Gigapixel AI was used for 4x to 6x enlargement.
Post-upscaling adjustments included levels, curves, film grain, and print sharpening.
Raw compatibility and camera-specific optical issues were addressed.