Help with gettin the right shutter speed & aperture sett

Hi Grifter730, you need a ND filter 2or 3 stop, I prefer a 3 stop, and a Polorizer filter for 2 stops... this gives you 2, 3, 5 stop range. Here in Arizona were the sun is very bright it takes 5 stops to get the speed down to 1/4-1/5 etc... I use a 300D with the 17-40L and that work fine. Use AV and set it on F16 prefered, or F22 (top end is not as sharp as when you stop it down a little)... If you have to long of exposure all you will have is milky water but in the range above it will be much better....avoid the 4 sec. exposures.
of course it depends on how fast the water is moving also.. a fast running stream will take less time
good Luck
DonP

kfong wrote:

PacAce wrote:
ASA? Is somebody showing their true age here?

Awww.. How come I can't set my DSLR to display DIN 21?

Ken

Didn't you get the hack for that? Only catch is you have to be set to use German menus (makes sense, Deutsche Industrie Normen/Das Ist Normall).

;{)#

Jon wrote:

kfong wrote:

PacAce wrote:
ASA? Is somebody showing their true age here?

Awww.. How come I can't set my DSLR to display DIN 21?

Ken

Didn't you get the hack for that? Only catch is you have to be set to use German menus (makes sense, Deutsche Industrie Normen/Das Ist Normall).

;{)#

Does this mean I'll have to use B (Blendenautomatik), Z (Zeitenautomatik) instead of Tv, Av, or was it the other way around?

Ken

This is the perfect answer to your question... 1 second is not necessary, let alone 4 sec., but I'm not saying you shouldn't try it.

Hi Grifter

The camera will allways meter so that the average brightness off the scene is middle grey (unless you force it to under/over expose in manual mode)

So-
In a dark area the camera will try to use slow shutter speeds and lage apertures (larger apertures are the SMALLER numbers)

In bright areas the camera will try to use fast shutter speeds and small apertures

Now here's the magic of photography-ALL THE MAIN SETTINGS ARE INTERCHANGABLE !!

i.e making the aperture one step smaller in Av mode will force the shutter to go one step slower to compensate

or
making the shutter go slower in Tv mode will force the aperture to open up one step

or
changing the iso one step will force either the shutter or aperture to change one step (depends which mode you're in as to which is forced to change)

The neutral density or polarizing filters mentioned above are very usefull when the scene is just too bright and all the settings on the camera are allready maxed out
The opposite would be using a flash where the scene is just too dark and the camera settings are too low
(and that is indeed the problem you are having with blur when taking pics inside.The shutter speed is too slow but the other settings are allready maxed out - presume they are,you better check )

So why on earth are all the settings measured in stops?? (to use the proper term)Because of the *HUGE* brightness ranges encountered in photography.

One stop is either double or half
i.e one stop more is double,one stop less is half

shutter speeds and ISO settings are easy to understand -they are written in numbers that are double or half the one next to it (yes there are fractions but let's not talk about them just yet-they are not too important anyway)

ND and POL filters are also listed by their light blocking capability in stops
i.e one stop or 2 stops etc

Apertures are much more confusing at first!! There is a very good reason they have tose numbers but that's another totally different story
The only way to do it is to remember the series of numbers to know what is one stop less or one stop more

To start you off,here are the main ones you'll ever need to know about (they DO go higher and lower but that's another story also)

f1.4 f2 f2.8 f4 f5.6 f8 f11 f16 f22 f32

Aperture also come in fractions but that is something to avoid thinking about for the moment,
**The only thing you should know for now is that you camera will give adjustments of both aperture and shutter in one-third steps **

so all those numbers the camera is giving you might be confusing at first!

Most scenes are less than five stops wide

What does a "stop" mean?

Check this out:

http://www.photoworksh​op.com/canon/lessons/i​ndex.html

I found it super helpfull and it's specifically directed at the Rebel with pictures