I'm an amateur photographer that's lucky enough to get sent all around the world. Recently on a trip to Alberobello, Italy I was taking pictures of Trulli houses during sunset. I found the absolute location to take pictures of the houses on the hill, the sun was in the perfect spot, there was great contrast between the clouds above the sun and the rays of light shooting up into them, but because the sun was only setting behind the hill and there was another 30 minutes before true sunset I was still essentially taking pictures of my light source, I simply couldn't capture the scene like I was seeing it. I thought to myself, man if only I had something like sunglasses for my camera. Enter the neutral density filter. That's the best way I can explain it. As much as I enjoy tinkering with photoshop, I much prefer to get the picture perfect at the camera and never even open photoshop. This ND filter allows me to tone down the lighting, but still giving me the entire range of adjustments my D80 offers. I've found it works best there's slightly overwhelming light that you can't control, and it's produced some pretty interesting effects during sunset when I increase my exposure a bit. The filter is thin enough that I can stack it on top of my UV filter and it doesn't crop the frame on either 35mm or my 18-55mm that it fits on. The quality is great, I have some no name filter that came with the 18-55 lens and it feels like it was assembled in a garage, not so with the Tiffen filters.