Gazman
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Hi, i asked a question simialr to this a little while back, but i dont think i put it accross correctly, either way i still don`t really understand it.
In the book "Understanding Exposure" the author goes on about prefocusing the scene via the distance setting, when taking photos at small apettures , f/22 for example.
To quote the book:
"With my camera on a tripod, i set my aperture to f/22. I then prefocused the scene via the distance setting and adjusted my shutter speed for the light reflecting off the blue sky until 1/60 sec. indicated a correct exposure. The scene didnt look in focus when i shot it, but due to my aperture choice it was rendered sharp on film"
Now i understand the whole f/22 = large depth of field. Its purely the prefocusing via the distance setting i just cant grasp.
Anybody understand this and can explain?
Sorry for large post.
In the book "Understanding Exposure" the author goes on about prefocusing the scene via the distance setting, when taking photos at small apettures , f/22 for example.
To quote the book:
"With my camera on a tripod, i set my aperture to f/22. I then prefocused the scene via the distance setting and adjusted my shutter speed for the light reflecting off the blue sky until 1/60 sec. indicated a correct exposure. The scene didnt look in focus when i shot it, but due to my aperture choice it was rendered sharp on film"
Now i understand the whole f/22 = large depth of field. Its purely the prefocusing via the distance setting i just cant grasp.
Anybody understand this and can explain?
Sorry for large post.