Canon RF 100-300mm f/2.8L IS USM at B&H Photo

Canon RF 100-300mm f/2.8L IS USM at B&H Photo

B&H Photo has stock of the Canon RF 100-300mm f/2.8L IS USM. Recent reports about a 6-month delay may still be true, and this is a matter of cancelled preorders. So if you’re in the market, I’d act quickly. Canon RF 100-300mm f/2.8L IS USM Full-Frame | f/2.8 to f/22 Fast L-Series Telephoto Zoom Dual […]

Canon RF 100-400mm f/5.6-8 IS USM Review

Canon RF 100-400mm f/5.6-8 IS USM Review

OpticalLimits formerly known by camera review elders as photozone.de has produced their review of the Canon RF 100-400mm F5.6-8.0 Without even really studying the review, it’s difficult to find fault in a telephoto 100-400mm that sells for $599 USD. Key features of the Canon RF 100-400mm F5.6-8 IS USM include; RF-Mount Lens/Full-Frame Format Aperture Range: […]

Canon RF 70-200mm f/2-2.8L IS USM DS and other fast DS zoom lens designs

Canon RF 70-200mm f/2-2.8L IS USM DS and other fast DS zoom lens designs

Over the years I’ve seen some crazy designs patented by Canon and applications like this one are fun to read. I mean, here’s a patent application where someone was told. “Go nuts, see what you can do”. Let’s make no mistake the lenses described here would be big, heavy, and frighteningly expensive but we are […]

Cooling enhancements for small IBIS camera

Cooling enhancements for small IBIS camera

Canon is at it again with this form factor and finding more ways to combat the most obscure heat problems you can imagine. Why heat is an issue, is aptly described in this part of the patent application. When a user takes a picture while holding a digital camera, image blur may occur in the […]