Photography News: Sigma and Tamron’s New Lenses

This week, I got so lost in my archives of photographs taken with various DSLRs that I nearly succumbed to nostalgia. I even started browsing used camera gear websites to see if a nice, well-preserved Nikon D4 might pop up. But then there are moments when you ask yourself, “How on earth would I have been able to photograph this with a DSLR?” Like the super-low-light photo below, which pressed even a modern camera’s autofocus performance to the limit.