Sigma has announced new SD9 firmware and a new version of Sigma Photo Pro will be made available for download next Wednesday, 14th May. The new firmware and Photo Pro combination deliver improved noise reduction, improved processing speed and the primary concern of SD9 owners higher quality JPEG images from Photo Pro. JPEG files from Photo Pro are now saved with the 4:4:4 down sampling when the quality is set to 7 or higher, the previous version of Photo Pro used 4:2:0 down sampling which could lead to loss of color resolution and odd color artifacts.