Believe it or not but this is a single exposure (raw of course) with no need for complicated exposure blending and masking in Photoshop. I prefer, whenever possible, to capture an image in a single exposure. I'm not a big fan of the multiple exposure focus stacking and extreme exposure blending so prevalent today in nature photography. I'm just a bit too old school for that way of thinking I guess. Now the image did need some work in post and as always I started out in Lightroom V4 and did my basic adjustments for white balance/tint, shadow and highlight recovery, vibrance and as always used the lens correction tab to remove edge distortion and any key-stoning.
After I finished the basic raw development, I brought the file in Photoshop CS5 and used a series of luminosity masks, targeted towards the lights and shadows in the image, and did some selective tone mapping of the image using curves. This allowed me to selectively lighten and darken select regions of the shot and give the image a very natural overall appearance (close to what I remember seeing while capturing the image). To finish off the processing of this image, I used Selective Color to bring down the yellows to a more natural appearance and remove some yellow from the blue sky. And then did some selective sharpening via High Pass Sharpening and a blending mode of Overlay with the opacity of that layer set to around 50%.
I hope you guys and gals enjoy this image and maybe my explanation of the processing will be helpful as future food for thought in the field. Remember, if you an capture the dynamic range of the scene in a single exposure, there is absolutely no need to bracket your images wildly in all directions. On the other hand, digital capture is free, so when in doubt shoot away freely.
Registrations are open for next years Glacier National Park: Crown of the Continent Photography Workshop -http://www.josephrossbach.com/workshops/glacier-national-park-crown-continent/
Best of light, Joe