The thing is... I want to purchase a ND filter but I don't know which to choose between a Light Craft ND500 and a B+W ND1000. Do you have any advice for me?
I have the Lee 10 stop "Big Stopper" and it's probably the most expensive of all the ND filters. It's a really nice piece of glass though. Now are you looking at just an ND filter or GND?
You can have as many stops as you want, just your exposure time will have to be significantly longer. I used the Lee "Big Stopper" to take a photo of an old barn in the middle of the day, and my exposure was well over a minute long.