G
Guest
I need a little help, and time is of the essence. Essentially I’m trying to cheat.
I’m asking if anyone would be kind enough to point me in the right direction of information about, or could even downright tell me, how many stops are between ISO400 and ISO50? I'm kinda needing to know in order to purchase the proper neutral density filter....
Backstory:
I suspect the fog will be heavy over the local snow covered water fall this weekend judging by the weather reports, and I wish to take some B&W pics. There’s only one custom photographer in this one horse town I live in, any competition is down the road aways towards the metropolis, and his rates are exorbitant. I heard tell of a special Kodak T400CN B&W C-41 process film, like what I could get developed at a little family run minilab I love to support, so I bought me some. Now I need to use it, and here’s my problem- I need to use a long exposure time, like several seconds to blur the quite rapidly moving waterfall, and this film is 400 speed. I looked online, (you know, SFTW?) and the links I found didn’t get me very far. I used ISO200 last weekend when the falls were iced over, and found that film speed to be WAY too fast. When I forced the ISO speed just to meter, I found that ISO50 was just right, and I’m expecting very similar weather conditions this weekend.
<a href="" target="_blank">JC</a>
I’m asking if anyone would be kind enough to point me in the right direction of information about, or could even downright tell me, how many stops are between ISO400 and ISO50? I'm kinda needing to know in order to purchase the proper neutral density filter....
Backstory:
I suspect the fog will be heavy over the local snow covered water fall this weekend judging by the weather reports, and I wish to take some B&W pics. There’s only one custom photographer in this one horse town I live in, any competition is down the road aways towards the metropolis, and his rates are exorbitant. I heard tell of a special Kodak T400CN B&W C-41 process film, like what I could get developed at a little family run minilab I love to support, so I bought me some. Now I need to use it, and here’s my problem- I need to use a long exposure time, like several seconds to blur the quite rapidly moving waterfall, and this film is 400 speed. I looked online, (you know, SFTW?) and the links I found didn’t get me very far. I used ISO200 last weekend when the falls were iced over, and found that film speed to be WAY too fast. When I forced the ISO speed just to meter, I found that ISO50 was just right, and I’m expecting very similar weather conditions this weekend.
<a href="" target="_blank">JC</a>