There's an article here, not photography specific, about plunging profits (a loss in fact) for Sony. Canon also gets a mention, as does the strong Yen....
http://www.theinquirer.net/inquirer/news/382/1050382/sony-set-to-post-first-loss-in-14-years
A couple of months old but here are a couple of Reuters articles from last October on profit slumps for Canon and Nikon due in part to the Yen....
Canon
Nikon
More directly on topic, My eyes nearly popped out of my head when I saw the new prices on some Canon glass at Jacobs. I have four lenses on order with Jacobs and I'm locked in at the old prices (already paid) but still awaiting stock. Here's how the old and new prices compare...
Canon EF 16-35 : Old price : £924.82; New price : £1129.99; Increase : 22%
Canon EF 24-70 : Old Price : £779.99; New Price : £979.99; Increase : 26%
Canon EF 50/1.4 : Old Price : £222.12; New Price : £279.99; Increase : 26%
Canon EF 85/1.8 : Old Price : £247.61; New Price : £299.99; Increase : 22%
It was only around six months ago that I was dithering over whether or not to buy the 50/1.4 and 85/1.8 for around £210 each, brand new on eBay from UK suppliers. Boy, I wish I had.