1 Proterozoic: this eon refers to the time from the lower Cambrian boundary, 541.0 Â± 1.0 Ma, back through 2500 Ma. 2  As originally used, it was a synonym for Precambrian and hence included everything prior to the Cambrian boundary.
Canon's 50-megapixel EOS 5DS is the highest-resolution full-frame DSLR ever. If you thought the megapixel wars were over, think again: Canon's latest DSLRs cram just over 50 of them into a full-frame sensor.
When it comes to travel photography, lighter is preferred, but we couldnât pass up checking out this behemoth of a lens by Canon. Touted at the âlargest and most powerful prime lens ever createdâ for an SLR camera, the Canon 5200mm lens reaches optical zoom ranges of 1000x. The camera is 6 feet long and weighs in at around 220-pounds.