Canon Mirrorless Camera on July 23?

Canon mirrorless camera announcement

An invite for a new Canon product announcement suggests that we may see Canon’s entry into the mirrorless camera market on July 23, 2012.

Prior rumors suggest a camera using a 1.85x crop factor sensor (i.e., same size as the G1 X) and featuring a different lens mount than the current EF and EF-S mounts found on Canon DSLRs.  Additional rumors say that the camera will launch with 3-5 lenses for the new “system” camera.

[via Photo Rumors]

Canon 24-70mm f/2.8L IS Lens Patent

Canon-24-70mm

A recent patent publication shows Canon has been looking into adding image stabilization to a 24-70mm f/2.8 lens.  Given the recent announcement of the EF 24-70mm f/2.8L II USM lens (which still isn’t available), however, this doesn’t bode well for an IS version anytime soon.

Of course, there’s a Tamron lens that fills this void though

[via Photo Rumors]

Canon Rebel T4i Product Advisory Warns of Defective Rubber Grips

Rebel T4i Rubber Grip Defect

Earlier this month, Canon issued a product advisory on the Rebel T4i for an error in the firmware.  Two days after the issuance of that advisory, Canon issued another product advisory for the Rebel T4i with regard to the presence of zinc bis in the rubber grip.

In short, this substance may cause the rubber grips to turn white and could potentially lead to skin allergies or irritation.  The lot affected can be identified by looking at the serial number.  If the sixth digit is “1” then your camera could be affected.

Specific details in the full product advisory below. [Read more...]

Canon’s Rebel T4i Pixel-Level AF Sensors; Mirrorless Next?

Rebel T4i

The Rebel T4i is the first Canon DSLR to feature full-time AF in video mode.  The past Canon DSLRs have featured the ability to force an AF confirmation using a slow and clunky contrast-detect method, which was simply unusable during video capture.  Another AF confirmation option has been to use the cameras’ phase detection sensors; however, this caused a blackout during live view thanks to the mirror flipping down in front of the image sensor.

The folks over at Chipworks [via Image Sensors World] tore down a Rebel T4i to get a look at the image sensor and reveal phase detection sensors mixed among the pixels.  This is something that Canon has been cooking on for a while. (Note this patent application that I discussed back in 2010.)

Chipworks Cano Rebel 4i pixel-array-ir

And while we’ve seen this concept implemented in prior cameras (notably the Fuji F300EXR point and shoot camera and Nikon 1 Series), Canon has gone about it in a technically different way to make it effective for DSLRs. [Read more...]