"stopping down the aperture"

LBonawitz

Member
i don't think i've figured out this whole aperture thing yet. but heres a pretty picture anyway :D


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Nice shot! I have been trying to figure out the balance of aperture, shutter speed, and ISO sensitivity and am slowly learning. Its all about proper balance! Here is a shot I took today:


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See Ya,

Todd
 
Aperture refers to the amount of light allowed into the lense, when taking a photo. Shooting with a wide open aperature value, (ie: f/1.2-3.5, or so) will give you a shallower depth of field(smaller area of focus), and allow you to use a faster shutter speed, by allowing more light into the cameras sensor. If you want a greater depth of field, (ie: getting the whole chameleon in focus) you need to stop is down some, (ie: f/8-11, or so). By doing this you will also need to use a slower shutter speed since the hole allowing the light in is now smaller. When I take photos of my chams I use manual mode(M) which allows me to control the shutter speed and the aperature value. You can also shoot in Aperature Value (Av Mode) and select the aperture you want to provide the desired depth of field, and it selects the shutter speed automaticly. You may run into instances where your exposure meter says the picture will be underexposed (too dark) at the selected Aperture value you selected. At that point you have a few options. 1. opt for a slower shutter speed. 2. Increase the ISO setting untill your image is properly exposed, or 3. Use a flash or other form of light to illuminate the subject.


I read the book, "Understanding Exposure" by Bryan Peterson. It's a must for anyone who wants to take better pictures. Easy reading too! Amazon had it for $16 shipped, well worth it.

Good luck:)

-Jay
 
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