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Understanding Zone Focusing | Depth Of Field Indicator

After spending few weeks with Fujinon XF14mm 2.8. I am very satisfied with its both sharpness & its ability to shoot during low light. There are some marking on the lens which i’m not paying attention to when I use this lens until recently my curiosity has brought me to find the actual purpose of the marking.

For those who used manual lens or film camera, these marking are nothing new to them. I’ve seen several zoom lenses has these marking with its lines connecting to the focusing distance. These marking is known as “Depth Of Field (DOF) Indicator”. Here are some example (google images) of the marking i talked about:

LINZOOM1

Image 1: Zoom Lens with Depth Of Field Indicator

DOF-indicator

Image 2: Lens with Depth Of Field Indicator

DOF indicator is used to guide which aperture will provides “acceptable” sharpness nearer and further from the actual focus distance. These technique is known as “Zone Focusing”. I’m not going to explain it scientifically about this. But lets learn how to use it.

Lets use “Image 2” as an example.

  • From the top, we can see the focus distance in feet(ft) followed by meter (m). On the focusing mark, it has aperture value on both its left and right side. Starting with 4, 8, 11, 16, 22.
  • Lets say that our subject are now in focus at 4ft. When we decide to use f8, both marking on the focusing marking shows us 3ft and 6ft. These indicate us that anything between 3ft to 6ft will be in “acceptable” sharpness. Any subject beyond the zone, will begin to blur, or out of focus.
  • I’m pretty sure you get the point now. I’ll let you to do further understanding by actually try it yourself.

Unfortunately, many of modern lenses nowadays doesn’t have these indicator due to Auto Focus technology has been improved way better for year to year. Welldone Fujifilm for their genius effort on putting the Depth Of Field Indicator on its Fujinon XF14mm lens to keep us aware of this features and be thankful for the advance of our AF technology nowadays.

 

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History made in Historical Penang

I was on MATTA Fair (Malaysian Association of Tour & Travel Agents) in Penang on 19-21 April 2013. Just few weeks ago, i made silly move by asking Matt Brandon whether we could meet for a cup of coffee somewhere in Penang, and i would be the happiest man on earth if we can go out and shoot. For those new to this name,  i have mentioned about his great inspirational podcasts “The Depth Of Field” in this blog (click here to view). He promoted Penang by conducting photography workshop during Thaipusam, a Hindu festival. His latest workshop was conducted in Rajastan, India. For more info about his on going photography workshop click here. Anyway, i get positive reply from him and we met at this World Heritage Site of Penang. Like buying 1 and get another 1 for free, a gifted photographer & videographer, Nathan Watkins joined us too during that historical meeting.

Me & Matt Brandon at Toh Soon Cafe, Penang

The man behind “The Mamas Of Chowrasta” video

Click here to see the video

We headed to The Goddes of Mercy Temple located on Jalan Masjid Kapitan Keling as suggested by Matt Brandon before i showed him the list of question during our coffee session at Toh Soon Cafe.

Goddes Of Mercy Temple, Penang

The Goddes Of Mercy, Penang

The Goddes of Mercy, Penang

I’m so glad to meet both of them. I have learned that to make the very first move and not worried being rejected are the keys to meet these great people.

Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do”

– Mark Twain

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