Originally posted by Na Horuk But isnt the stated weight significantly different?
Tokina has some history with Pentax, but I don't see why now. The product photos don't tell the whole story, they are just prototype mockups.
And its funny people say Pentax couldn't compete against Tamron and Sigma primes, when just a couple years ago both of those were considered the "inferior third party" products. Yes, they got better. But Pentax didn't stay stuck in 1990s, either.
While you make a valid point, I think that a lot of the third party attention comes from their lenses going from "ok to good" to being "great to excellent." The Sigma art lenses in particular are almost universally excellent on a technical level when it comes to sharpness, contrast, CA etc. Where I believe that the Sigma lenses fall slightly short is on rendering. Everything is subjective, but I only like the rendering of the 50 Art and 135 Art. The 85 is great too, but it's gigantic in my opinion.
I think that a lot of modern designs are suffering from the pursuit of technical excellence. These ultra sharp, technically excellent lenses also give what is known as a clinical look. Some people love the new look and other people prefer the look of older, less perfectly corrected lenses. I think I'm somewhere in the middle where I hate having to mess with fringing issues and lenses being soft wide open, but I don't always like the newest models of lenses. This is probably why a lot of people love the limited lenses. It's for their "look"