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.
Meet world's highest resolution DSLR. LOS ANGELES- Camera manufacturer Canon is taking a leap of faith that photographers want even bigger files, and way more resolution than they're used to getting. The company in June will release updates to its beloved 5D Mark III camera that ups the resolution from 22 megapixel up to 50.5.