Having a look through Pentax's prime lenses and the widest WR lens is the DFA 50, or the cheaper DA* 55. 3rd Party and we have the Irix 15mm Blackstone or Firefly that's WR. That's it... nothing else that is wider than those two options. Kinda sucks. So many great small portable primes but none that are AW/WR...
It got me thinking, whether anyone has tried to weather proof a non weather proof lens, some kinda DIY job. A quick bit of googling and I notice I'm not entirely mad and that some have tried. Examples;
Ultimate Lens Hood ? The Ultimate Lens Hood An anti-reflective sleeve to shoot through windows that when folded the other way towards the user could be used to keep water off the lens.
The Nikon Digital Field Guide Online: DIY Weather Proofing for your Sigma 35mm f/1.4 | A something for Sigma Art 35/1.4
I just wondered if anyone has taken a serious look into this process, can you add a thin piece of silicon or something to the lens/mount to help protect the lens/sensor, and again extend the sleeve to the hood etc. You might lose functions such as Manual Focusing, or I'm guessing if the focus is not internal then this would not work.
Eh... just rambling thoughts...
Cheers,
Bruce