check this link out?
http://www.lenstip.com/115.1-article-Polarizing_filters_test_Introduction.html

Put the dirty dishes on the floor, cats lick them clean, dead beat inlaws don't stop by at dinner time anymore!

Are these available in the US? Or could you suggest something similar available in the US?

This might be a place for her to start after consulting an accountant:
http://www.themoderntog.com/tools

Yes, they will. They did for me. As I recall, I just contacted Adobe support via email. They started a support case and responded within a week. This was for Lightroom, but I suspect that they would perform similarly for PSE,

one of the advertisers on this forum rents calibration equipment. might be a low cost solution.

http://www.lensrentals.com/rent/nikon/accessories/calibration

I've had good luck with "PhotoEvo" in Grand Rapids. Google them and get their phone #. I believe they do mail ins.

On my D5100, I use Live View with an infrared remote. The 5100 does not have mirror lock up, per se.

Considering upgrading to the new D7100 from my D5100. Lenses I currently have are the 15-55 afs, 55-200 afs, 50mm 1.8g, and the well regarded Sigma 150-500. My concern regards the two Nikon "kit lenses" and image quality. Will the sensor on the D7100 out resolve the capabilities of these two lenses?

Hi Jerry, after using the filter system for a while, would you recommend it's purchase? Or, would I be better off saving for the Lee (or Calumet, made by Lee) system?

Thanks in advance.

While not from 80+ years ago, one person is 97 in this five generation photo. Sadly, Grandma passed away shortly after this was taken.

To add to the list of reputable dealers in the US, I'd like to add Calumet. I have ordered numerous times from them, only had a problem with my order once (hot light lamp that did not work) and a phone call later, had a replacement next day. FANTASTIC company to deal with! I actually intend to drive 4 hours in a few weeks to step into their brick & mortar store to meet the people i speak with on the phone. Great people, great store(s)and great customer service.