Originally posted by Gray Tamron, Tokina, Zeiss ... gone... and now Sigma? A real shame.
Not quite;
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/243556-3rd-...available.html
Still 38 zooms and 24 primes from 3rd party makers, including Zeiss, Tamron, Samyang and Sigma. Tokina has stopped all Pentax mounts, however.
Things don't change overnight, but sometimes they do change. Sigma announced the 18-35mm for Pentax at first, withdrew it, now it's back.
Maybe the 3rd party support will get worse before it gets better?
In the meantime, nearly one hundred current lenses available, from Pentax and the combined 3rd party makers.
And more legacy lenses than anyone!
Ron