Focus Question....
- Thread starter hawk
- Start date
Jeannie
Super Moderator
I'll try to explain this simple.
To get the whole frame in focus you need a small aperture. This means the number (the F-stop) will be larger. Start by trying to use a f/8 then go to the next larger number.
Remember the larger the number the smaller the opening in the lens. The smaller opening allows more of the photo to be in focus. Think of a garden hose. If the opening is large the water just falls at the end of the hose - hence a shallow depth of field. If you hold your thumb over the opening in the hose to make it small the water will shoot out further - hence a deep DOF.
Remember the smaller the aperture the longer the shutter needs to stay open to allow enough light to enter so camera shake can become a concern. A tripod may be needed depending on what lens you are using. But that is another lesson
Clear as mud?
To get the whole frame in focus you need a small aperture. This means the number (the F-stop) will be larger. Start by trying to use a f/8 then go to the next larger number.
Remember the larger the number the smaller the opening in the lens. The smaller opening allows more of the photo to be in focus. Think of a garden hose. If the opening is large the water just falls at the end of the hose - hence a shallow depth of field. If you hold your thumb over the opening in the hose to make it small the water will shoot out further - hence a deep DOF.
Remember the smaller the aperture the longer the shutter needs to stay open to allow enough light to enter so camera shake can become a concern. A tripod may be needed depending on what lens you are using. But that is another lesson
Clear as mud?
DAWNMERIE
Active member
Yes. It helps if you are in aperture priority. You need to stop your lens way down, i.e F11,F16,F22. you will need good light or a good flash if indoors. Think of it this way, the smaller the lens opening the sharper objects are in front of and behind your subject (this is depth of field) by the way, you have a depth of field preview button on your D90. If you are hand holding your camera I would recommend a shutter speed of at least 125 or better(this is why you need good light) so as not to blur the picture. As you become more familiar with the camera you can also do all this in your program mode, but I would be typin all night. I shoot D300s so I am not fully versed in all the features of your D90 but photography is photography once you figure out the camera. Here is a link that should really help alot with your camera. the guy is great and very helpful.
http://www.kenrockwell.com/nikon/d90/users-guide/index.htm
Vince
http://www.kenrockwell.com/nikon/d90/users-guide/index.htm
Vince
