I have, in my bag of camera equipment a filter called an ND8. This is a Neutral Density filter. its sole purpose is to reduce the amount of light entering the lens. I have spent so much time trying to get more or better light that using this filter almost seems counter intuitive. That is until you want a slower shutter speed on a sunny day in order to capture a photo with motion blur. In the first photo I was in the parking lot at my office trying to capture a vehicle on the highway while panning. even at f22 i was still getting a fairly sharp background. adding the ND filter to the lens allowed me to achieve this with relative ease.
The moving water picture which follows was quite a challenge. I didn't have a tripod with me and it was really bright. I had the ND filter and a Polarizer in my 28-135 lens. I didn't have to worry about vignetting as I was using a 1.6 crop factor camera. The setting were f22, 2 second exposure, 100asa. I managed to brace the camera against a tree while using the self timer to reduce shake.
Neither one of these shots would have been possible without the use of the ND8 filter. I am defiantly a fan of the ND filter. If you want to get creative with your outdoor photography you really need one of these.
Thanks for the info Morgan, These are some of the effects I have been unable to achieve so far.
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