I have just realized that I have completely missed my Palouse Falls post. From the May trip I did to Walla Walla and south-east Washington. So without further ado here are the pictures that I have already shared on Instagram and Facebook.
Pentax HD Ltd. 20-40mm/2.8-4.0 @30mm f/7.1 1/80s ISO 400
Pentax HD Ltd. 20-40mm/2.8-4.0 @20mm f/8 1/40s ISO 320
Sigma 10-20mm f/4-5.6 EX DC HSM @10mm f/8 1/640s ISO 160
Sigma 10-20mm f/4-5.6 EX DC HSM @11mm f/11 1s ISO 100
I also tried to capture the Milky Way and the waterfall but failed miserably. However I did learn a lesson that 10mm focal length doesn't work too well with the Pentax Astrotracer due to the extreme wide field of view - lesson learned for next time.
Sigma 10-20mm f/4-5.6 EX DC HSM @10mm f/5 240s ISO 1600