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Old 09-10-2014, 06:28 PM   #4
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Join Date: Jun 2009
Location: Pune, India
Posts: 177

Originally Posted by JimThias View Post
Yes! Another convert.

Lalam, if you prefocus on a subject, you don't have to push the shutter button right away. The focus will not change until you push the back button again, or accidentally bump the lens. .
Thank you. So if I decide to focus on rails where I want the loco nose to be, I need to compose the frame, push back button just once and wait for the train to reach that spot . correct?. The focus won't change even if I lift my thumb from back button. Or in other words this locks the focus point on a particular spot.
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