Canon EOS 5D Mark I has an ISO 50 to ISO 3200 range, and the Mark IV has a ISO 50-102400 range, so all of these models have a similar noise performance in low-light conditions. The higher ISO range in all four models feature very little color noise in low-light conditions.
This Canon EF EOS 50mm f/1.8 STM works perfectly with every Canon EOS camera ever made, meaning every Canon DSLR and every Canon autofocus 35mm camera made since 1987. Of course it works great on today's 5D Mark III , 6D , Canon 7D Mk II and other Canon DSLRs.
According to our sources from Canon Philippines, the suggested retail price of the Canon EOS 5D Mark III is Php169,998 for the body only and goes up to Php219,998 with the EF 24-105mm f/4L IS USM kit lens. For comparison, the EOS 5D Mark II has a current SRP of Php129,950 (body only) so the price difference between the two is about Php40,000.68FQJ.