Possible Duplicate: What are neutral density filters and how do I use them to create long exposures in daylight? I like to take photos of motorsports and high speed action. Sometimes I use ...
If you stack two 3-stop neutral density filters, does it reduce the exposure by 6 stops or 9 stops?
I was at the camera shop a few weeks ago looking for a neutral density filter, so I could play around with long exposure shots without overexposing. The guy at the camera shop told me I didn't need a ...
I'd really like to stop blowing out the sky and/or underexposing the ground in my pictures. The traditional solution would be to use graduated ND filters, but taking multiple exposures and applying ...