You can tell if your automatic SLR camera is working properly with a polarizing filter by observing whether the exposure indication changes as the filter is rotated.

You can use the app to take pictures and let Photoshop Camera app enhance the picture automatically. You can also upload images that you have on your phone.

Just a few weeks ago while I was down in the Caribbean, I had the fun of testing out an iPhone 5 camera polarizing filter from Photojojo. While the clip-on filter worked -- sort of -- it had a ...

Do you own a polarizing filter? If so, I bet you use it almost exclusively outdoors. Polarizers juice up landscapes with richer greens, make blue skies even bluer, eliminate color-muting reflections ...

[Dave] wrote to tip us off about [Paul Wallace]’s take on the same idea, a DOLPi-inspired polarimetric camera using an iPhone with an ingenious solution to the problem of calibrating the device ...