Partinen has since confirmed this on his Twitter account where he mentioned that he will begin his work in June. Based on his LinkedIn profile, Partinen’s work at Nokia involved “working with image quality characterization and tuning on camera module level”. He also handled camera component production and quality control, and worked on devices like the Nokia 808 PureView and the Nokia N8.
Nokia’s handsets have also been known to be pretty decent at taking photos, with notable devices like the Nokia Lumia 1020 and the Lumia 1520 being prime examples, so safe to say that we can expect improvements in future iOS devices. We’re not sure what Partinen’s role at Apple will be, but given his background on photography and the work he has done at Nokia, presumably it will have to do with improving the cameras on Apple’s products.
Like we said Apple’s cameras have typically been pretty good, but at the same time they could always be better. We guess we’ll just have to wait and find out.