Sony filed a patent 2013-54164 for 16-135mm f/3.5-5.6 and 18-135mm f/3.5-5.6 APS-C lenses.
Sony also patented (2013-50630) a half mirror that will not "black out" during exposure.
Canon filed a patent (2013-57802) for a 50mm f/1.4 lens. The patent contains also calculations for a 50mm f/1.2 lens.
Those are the top 10 PhotoRumors posts for March 2013:
New product from SLR Magic - Monster Lens II 12-36×50 ED Spotting Scope for digiscoping with Micro Four Thirds cameras. The company's first spotting scope was announced back in 2011.
Press release and technical specifications:
Another set of rumored Canon EOS 7D Mark II camera specifications is currently floating around (see previous set of specs from November 2012):
The Samsung NX300 mirrorless camera will start shipping in the next few days and Usain Bolt is the new face behind the NX product line. Here is a recap of the main technical camera specifications:
Ok, it seems that the rumors I reported in my last Pentax post were bogus, but this doesn't change the fact that a full frame Pentax DSLR camera is coming soon - see yesterday's tweet from Pentax Australia. Last year Pentax Australia also tried to convince their Twitter audience that "good things are coming".
The rumored high megapixel Canon DSLR camera will probably be announced in October/September this year. The new 1 series body will most likely have a 47MP sensor, but there are also rumors for a 39MP or 50+MP sensors. The release time frame for this high MP Canon camera matches with the rumored 36MP Nikon D4x announcement.
Few weeks ago I reported that Pentax is going to soon introduce several new DSLR cameras as early as this month. RiceHigh received some information that the 24MP Pentax K-3 full frame camera will be announced next week on March 27. In another post, RiceHigh reports about photographer Mike Svitek who has posted this on hig g+ account:
The Latest Nikon Rumors