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Humble beginners Request,


5 Dec 2012 10:03PM
Does anyone know an easy way to remember aperture shutter speed and ISO and what results give what, I have got to the stage where my brain goes in to shock when i try to work out what I want and how to do it, I am getting to grips with most other things,
I think because I only have a fuji SL300 and everyone talks about f16 + and I think the most my camera does is f8, I panic and don't know to compensate for lack of camera, any suggestions welcome Wink

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lobsterboy e2
11 14.2k 13 United Kingdom
5 Dec 2012 10:13PM
How about:
If the f number goes up, the depth of field goes up and the length of time the shutter is open goes up.
But if the shutter is open too long then camera shake becomes a problem.
Increasing the ISO shortens the time the shutter is open.

cue long discussion about what is wrong with that
5 Dec 2012 10:36PM
Also think of it like a set of scales where you put weight on one side and goods on the other. To make things balance (i.e. get right exposure) you need to add things to the weights or the scales to make them balance. The variables are aperture, shutter speed and ISO. So adjusting one thing has an impact on another.

Now you're even more confused!
Tooth 9 5.8k 227 Ireland
5 Dec 2012 11:49PM
OK, here goes for another analogy..

imagine there's an ideal amount of light that needs to enter the camera to get the correct exposure.

Now, imagine that amount of light is the volume of a bucket that needs that amount of water.

As said above, there are three variables which have to balance out to get the right amount - if one goes up another has to go down..

now, back to the bucket..

think of the shutter speed as how long you need to leave the tap running to fill the bucket.

Think of the aperture as the diameter of the tap the water flows from..

and think of the ISO as the water pressure in the pipe.

So, if the water pressure's higher and the tap diameter remains the same, it takes les time to fill the bucket,

or, if you want to run the tap for longer, you have to either get a smaller tap or reduce the water pressure.

Still there?? Wink

So, the three variables are aperture, shutter speed and ISO (sensitivity of the sensor). For a given exposure, theren has to be a balance between the three, so you need to know the effetc of increasing or decreasing each, then finding the right balance depending on the kind of photo you want.

SHUTTER SPEED needs to be very fast to capture moving things. If it's too slow the moving object will blur. Asl oif the shutter speed is too slow and the camera's hand-held, blur will be introduced from motion of the hands.)NB some like to useslow shutter speed to get a silky milky water effect - you love it or hate it, but if it has to be done it has to be done using a tripod.

APERTURE - a small aperture (big number) means large depth of field - ie a wide area in focus both in front of and behind the main point of focus. A wide aperture (small number) means only a narrow area of focus in front of and behind the main point of focus - typically to accentuate an object against a blurred background. and

ISO - too high and a thing called noise is introduced - used to be graininess in old film - and looks like speckling and loss of detail. Low ISO means maximum amount of detail

Phew, I got there - hope it'sof some use

Stephen
6 Dec 2012 12:10AM
Phew thanks, all of you and Stephen, I am gonna read your comment again in the morning after a big mug of coffee I think I am getting a small understanding here, it is just my brains ability to soak up the info ceases when it can't comprehend the mechanics... I'm told that is a female thing the same as driving a car, have never known how that works either, other than putting my foot on the accelerator. LOL WinkWinkWinkWinkWinkWink

Thanks
Nikki
canonfan46 5 1.1k United Kingdom
6 Dec 2012 2:07AM
Oh I reallyu feel for you scruffy, I went through the sane process when I started back with photiography, but keep on posting your questions on here and the kind menbers will keep you right.
Pretty soon you will be answering there questions......just like me........lol
canonfan46 5 1.1k United Kingdom
6 Dec 2012 2:10AM
apologies to all, a bit to much of the souithern comfort and nostalgia........
canonfan46 5 1.1k United Kingdom
6 Dec 2012 2:14AM

Quote:the sane process when I started back with photiography

a fraudian salip mor what.........................lol
canonfan46 5 1.1k United Kingdom
6 Dec 2012 2:25AM
this forum isent what it usaed to bwe3/......................
Jestertheclown 6 6.6k 242 England
6 Dec 2012 7:55AM
Have a look at this.

. . . or this.

They should help.
Meheecho 2 275 United Kingdom
6 Dec 2012 8:07AM
I have just completed a DSLR for beginners course evening classes and found it really helpful in finding my way around camera settings. At 64 the old brain takes a bit more prompting when it comes to technology!!!
Brendan's second suggestion using the camera simulator is brilliant and just the sort of thing us newbies need!
Steve
Newdevonian 2 452 United Kingdom
6 Dec 2012 9:31AM

Quote:I'm told that is a female thing the same as driving a car, have never known how that works either, other than putting my foot on the accelerator. LOL WinkWinkWinkWinkWinkWink

Thanks
Nikki



That's Ok, it's understandable. However whatever you do, don't press the middle pedalWink
jadus e2
3 1.0k 2 United Kingdom
6 Dec 2012 9:56AM
sam-0576.jpg





I found this on you tube. printed it off and put it in my camera case and checked it evey time i was uncertain about what I was doing. Then one day I forgot it, or it blew away in the wind......................
JackAllTog e2
5 4.0k 58 United Kingdom
6 Dec 2012 10:06AM
Or look at this post from cats day before yesterday http://www.ephotozine.com/forums/topic/manual-photography-for-early-starters-100554

though i find repetitive practice the best way of remembering.

Good luck
User_Removed 5 4.6k 1 Scotland
6 Dec 2012 11:16AM

Quote:... I'm told that is a female thing the same as driving a car,

Thanks
Nikki



...but at least drivers of the female persuasion will stop and ask for directions when they get lost (or so my wife tells me). That is exactly what you have done here.



Quote:though i find repetitive practice the best way of remembering.


...although different folk have different mental processes. Some find that working to understand the underlying concepts works better than rote-learning. Horses for courses.

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