A Close Up Look At Camera Focus Part II

Part II of a tutorial showing several techniques that will help give you sharper focused images

Category:

Howto & Style

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• rinder smith photogaphy
• photography
• photographs
• photographer
• camera
• video
• tutorial
• assist
• help
• teach
• lens
• depth of field
• tripod
• ball head
• hand held
• cable release
• focus
• focus dynamics
• Nikon
• Canon
• diopter
• instruction
• holding
• stable
• sharp

[hhltdave5]

Hey Stef - When it comes to the 40 feet it does not matter if you are shooting at f2.8 or f22 (but diffraction can come into play with a very small aperture. Once you are past the infinity point of 40' the DOF parameters pretty much go out the window. I have shot jet fighters at 2.8 with tack sharp results. I used that aperture because I wanted to freeze the flight of the plane with a fast shutter speed.

Laurin is still on the forums at SS and still going strong. He is over 30,000 posts now.

[hhltdave5]

Thanks Jennifer. Glad you found it helpful.

[hhltdave5]

Klshnikov - Many times when you are taking a shot of someone you want the background to be blurry. This helps bring the eye of the viewer to the person in the shot because they are the object of the shot.

If the background is not blurry we often refer to it as a "busy" background. This can be distracting to the viewer so the background is blurred intentionally.

What is in focus depends on the shot and what you are trying to convey with the shot.

[hhltdave5]

Glad you found that little tip helpful.

[hhltdave5]

Infinity focusing comes into play with depth of field. Seeing that depth of field pretty much does not exist past 40 feet. If what you are focusing on is more than 40 feet and you properly focus on infinity your image will be in focus. Of course other focus factors such as camera movement, object movement, improper technique can still effect your focus.

[tigermoth100]

since its -10 celcius outside and chill factor -15, i'm not going to try this till april. (lol).

is this 40 foot rule the same whether you are shooting at 1.8 or f22 (firinstance) ?

thanks dave.. long time no talk. your cousin not in forum anymore ?. did a quick chek from someone elses pc since i'm booted out as usual.

stef

[jennifertuazonify]

i love this one.

[Klshnikov]

im not that experienced i seen alot of photo's with the background blurred if i was to take a photo of a person from around 5 to 10 feet how would i prevent it from blurring ?

[djcondra]

Holy moly. I just did some experiments with the elbow out stance, and it works very well for me. Cheers!

[england2345able]

guys, thanks for the uploads they have made focusing much more clear..

the only thing that has bugged me for months is infinity, s if i move my lens ring to the middle of the infinity focus symbol does that mean it is in focus?