photography
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- Werd
as you can see, i'm still very new to this and these attempted macro shots turned out rather grainy. so some questions!
Shutter Speed: Should I be at higher or lower speeds for close shots? how does it affect it? In all four I used my camera's maximum speed of 1/2000 sec
Aperture: Same as above^ The higher the F-stop, the more light gets through, right?
This thing called ISO: tried researching it, still not sure what it does. the available options are Auto, 100, 200, 400, 800. I used 800.
Thankyou!
- forcetwelve0
ISO is your film speed. the lower the number - the finer the grain is in your shots. looking at them i'd say put it down to 100 as they are quite grainy.
the smaller the ISO number you set the more light you need...
- forcetwelve0
and you want a slow shutter speed and a high aperture - pref with a tripod. if hand held you'll need to have your shutter on about 125 to stop the blurring.
the larger the shutter number - the faster it opens/closes.
fstop - higher the number, the smaller the hole.
- slappy0
what forcetwelve said
- ********0
what slappy said
- smielke0
What designerror said.
- quamb0
What smike said.
+ low aperture (lower number) will give you more depth of field - handy with that kind of folio/product photography.
- rafalski0
what the guys said, but..
a picture is an equation, where time and light delivered are balanced. Give it too long, or aperture hole open too wide, and you have an overblown image. Too short or the aperture blades closed too tight, and the picture is too dark - underexposed.
It's simple, but then time and aperture have more to them. The longer the time, the blurrier moving objects become, or you even catch camera movement.
Aperture is a tricky one, as it is responsible for the depth of field (dof). The faster the aperture (meaning, lower f value and bigger hole), the shallower dof you get - this allows you to isolate a single focal plane, blurring the rest. Slower aperture (tighter hole, higher f) means bigger dof, resulting in bigger range of focal planes being in focus.
forcetwelve suggests you want high aperture, but I'd say low aperture value brings more interesting results, letting you concentrate on detail.
More on dof: http://en.wikipedia.org/wiki/Dep…Then there is ISO, that is sensitivity. It adds to the equation - the higher the iso, the more light coming to the sensor. It allows you to shoot in the dark, shortening the time needed for a picture, without motion blur.
Just as with time and aperture, there is a byproduct, and this time it's neither motion blur nor dof - it's grain. Higher ISO gives you noise. In some cameras ISO 400 is unacceptably noisy, in my opinion Canon dslr sensors handle noise best.
- ok_not_ok0
for tack sharp macro you'll need a tripod and a shutter cable