[drwatsonhk]

I have nikon D70s and want to take a different ‘View Deep’ with different distance . I know use光圈先決 , but don’t know what value to change with the given distance . Anyone know how do I adjust ?

Thx

Watson

[peterchan04]

This is not an easy subject .... quite difficult when u are trying to figure it out exactly on an auto focus lens.

READ this .....
http://en.wikipedia.org/wiki/Depth_of_field

自動計算 depth of field...
http://www.dofmaster.com/dofjs.html

.

[Philippe]

留意下相機會有個景深預覽按鈕的.

[drwatsonhk]

Thx all