Why is it so difficult to compare one light to another? It would be bad enough to say that watts, LUX, watt-seconds, and guide numbers aren’t directly comparable. And unless you’ve been around lights for a long time, these measurements won’t even make intuitive sense.
Earlier this year, Sigma generated a good amount of noise throughout the photography community when the company stated the intended target competition of their upcoming 50mm F/1.4 lens: Zeiss’s $4,000 55mm Otus. That can either result in us getting one a big leap in quality for lenses on the market at a (hopefully) more consumer-friendly price, or it can end with us having some serious trust issues.
Just recently, Xitek has posted the first few pictures of the Sigma lens engaged in tests with three other lenses: the Sony Planar T 50mm F/1.4 ZA SSM, the Nikon Nikkor AF-S 58mm F/1.4G, and the targeted Zeiss 55mm F/1.4 Otus. (cheapest of which is ~$1500).[Read More…]