Danilo said:
Huh, I didnt knew that I dont know soo much.
Ok... I will use tripod, and wish to try B&W and Color too. Prints do with machine at some photo shop.
I have handheld light meter, but it works only at day. I have pretty old Canon with 50mm lens.
About your folowing text I didnt understand a thing, maybe because Im using very old equipment.
I was thinking to buy one slidefilm 100 ASA and experiment with exposure, but I wish to learn as much as I can this way.
Thanks for the book, will try to find it
I suppose your canon has a centerweight meter and you see a metering needle in your viewfinder. Your shutterspeedrange in manual may go till 1 sec open up to f/1.8 or 1.4 or whats the widest F-stop you have got and see if you get a reading. If you do it may read 1sec at f/1.4 if not change the ISO on your camera untill you get a reading.
e.g. film ISO = 100
reading ISO needed = 400
reading @f/1.4 = 1 sec
counting from ISO 400 to ISO 100 two stops from 1sec (1stop)2sec-
(1stop)4sec
(remember one stop double exposuretime)
So if shooting at f 1.4 your exposuretime is 4sec
(reciprocity not taken into acount)
You don't want to shoot wide open but at e.g. f/8
from f/1.4 to f/8 = 4stops
counting from 4secs at f/1.4 = 8 - 16 - 32 - 64sec
So at f/8 your exposuretime is 64sec
(reciprocity not taken into acount)
Now the rule of reciprocity don't aply at long exposuretimes. the film seems to be slower the longer time you need to expose so to overcome this you look at the film datasheet and find the curve telling you how much you need to extent you exposure or you simply bracket your shots 2 or 3 stops or maybe even more.
So your first shot is 64sec at f/8 second 128sec(2min), third 254 sec (4.15min).
The correct thing exposurevise would be to change your f-stop but since that change your image I never touch that when it's been set.
In normal light I bracket in 1/3 - 1/2 stops but that is not necessary at night.
Remember this is a fictive example.
By all means when shooting color use slidefilm, the lab will probably ruin it all when printing.
Does anyone understand this post ?
Cheers Søren