I was looking around for replacement focusing screens and ran into KatzEye Optics. Everything I’ve seen has been positive so far. So I thought I’d pass this along.
Their replacement screens cover many different DSLRs from several manufacturers including Leica, Pentax, Olympus, Canon, Nikon, Fuji, Panasonic and Samsung.
The attraction for me is the enhanced focusing ability when using manual focus lenses. DSLR focusing screens are sub-optimal for manual focusing.
One nice thing about them is that they have a service to replace the screen for you. This is wonderful news for those that might be a wee bit nervous about accidentally damaging the sensitive parts of the camera.
I have not used their product yet, but do intend to.
Here is a review I found on the KatzEye focusing screen for a Canon DSLR.
Here’s a video of a KatzEye Focusing Screen on a Nikon D7000
