[bhancox]

Hi Has anyone out there used this lens with a K5 mark2 S ? as I am looking to buy one

[jpzk]

Hi.
Welcome to the best photography forum!

I have this lens, just bought recently, and I use it on my K5: little practice with it so far but I realize that this is a great lens.

I also have started a thread: https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/216903-help-me...all-sigma.html
and it is quite useful for someone looking into this lens.

I suggest also to check the lens database reviews and to look for this specific lens: very informative.
Here is the direct link: https://www.pentaxforums.com/userreviews/sigma-150-500mm-f5-6-3-apo-dg-os-hsm.html

JP

[VisualDarkness]

I have one without the OS and I think it's a really good performing lens compared to its price, as long as there is enough light when you shoot.
The only issues is the need for enough light to not bump ISO too high as it is a slow lens, the slightly too tight zoom ring and that the zoom creeps when pointing the the lens upwards or downwards. The image quality is quite good but to shoot with such a long lens craves good technique.
Look at what this guy can achieve!
https://www.pentaxforums.com/forums/pentax-k-5/215441-k-5-sigma-50-500-os.html