Here are a couple of pictures to show old versus new!
On the top is a Honeywell-Pentax Spotmatic film SLR with a Vivitar 400mm f5.6. On the bottom is a Canon EOS 5D mark III DSLR with an EF 70-200mm f2.8L IS USM and a TCIII 2x extender, which makes that equivalent to a maximum 400mm focal length f5.6.
On the left is a Canon EOS 5D mark III digital SLR with an EF 70-200mm f2.8L IS USM and a TCIII 2x extender, which makes that equivalent to a maximum 400mm focal length. On the right is a Honeywell-Pentax Spotmatic film SLR with a Vivitar 400mm f5.6 and a Cosmos APS Auto Teleplus 2x extender, which makes that equivalent to an 800mm focal length.
JUST PhotographIN' 