My wife and I were watching a Star Trek: The Next Generation episode called "Booby Trap" (ep6, s3) when something interesting happened in...

Note: I have now given this lens review it's own page on the main site here. I got the Sigma 135mm f/1.8 Art lens in 2017. Although its...

I have had an anti-reflective coated converted Sony A7 for a while now, but it just occurred to me that with my lens rating for infrared...