Last week, I tried out a circular polarizer filter, and saw a tremendous difference in the pictures that were taken in bright sun conditions, especially where water was concerned. But I also noticed that the output was not especially sharp.
So, I plopped down $25 for an upgraded filter, which arrived on Thursday. The new filter produces nice, sharp results – and again, shows a remarkable difference when taking a picture of pond life on a sunny day:
Based on what I had read, I believed that it should also work when taking pictures of items in a window. I didn’t see any difference on my first try, so I came home and started googling… and learned from cameratechnica.com that the camera needed to be at a 34 degree angle to the glass in order to get the best glare reduction. In my limited trial – the 2nd attempt – the results were noticeable, but not perfect. It may have had something to do with my side-to-side angle to the glass:
Additional reading on CPL filters led me to experiment with long distance shots on a sunny / slightly hazy day. Big difference! The polarizing filter gives much more detail in the distance:
Lesson learned: keep the filter close at hand on a sunny day!