The latest patent applications from Tamron, Canon and Sony

Tamron

Patent 2012-242504 from Tamron is for a 300mm f/2.8 full frame lens for mirrorless cameras (?):

Tamron 300mm f/2.8 full frame lens for mirrorless cameras patent

Canon

Patent 2012-247451 from Canon is for a 50mm f/1.2 lens:

Canon 50mm f/1.2 full frame lens patent (for DSLR cameras)

The next example is interesting - it looks like Canon filed a patent for a 50mm f/2.0 full frame mirrorless lens:

Canon 50mm f/2.0 full frame size mirrorless lens patent

Patent 2012-242742 covers several different lenses:

Canon 800mm f/5.6 DO Macro 1:1 lens patent

Canon 400mm f/4 DO Macro 2:1 lens patent

Canon 600mm f/4 DO Macro 1:1 lens patent

Canon 400mm f/4 DO Macro 1:1.4 lens patent

Canon's patent 2012-237877 describes a way to reduce the size of a 100% optical viewfinder:

Sony

Patent 8330851 from Sony is for a SLT camera with a Flip Up mirror mode:

In patent 2012-237966, Sony again describes several lens solution for a curved sensor: