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Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D60/D50/D40 (Public) topic #42995
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Subject: "D40 Manual Focus Exercise" Previous topic | Next topic
geoffmalter Registered since 25th Feb 2010Mon 30-Aug-10 04:53 AM
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"D40 Manual Focus Exercise"


US
          

I've lately been using my AF-S lenses on manual as practice, and here's my bonehead question: do you need to register a solid green light in the viewfinder to be in focus, or will a blinking green do as well?

To answer the unasked question, I don't intend to upgrade the body at this time, and there is a lens I want (Tokina 11-16 f/2.8) that doesn't auto-focus on the D40.

Thank you in advance.

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DeanAZ Moderator Expert nature photographer Nikonian since 28th Apr 2007Mon 30-Aug-10 06:59 AM
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#1. "RE: D40 Manual Focus Exercise"
In response to Reply # 0


Phoenix, US
          

There actually is not graded state where the focus indicator blinks. It is either in focus and the light is on or it is not in focus and the light is off. However, the focus system works really fast and this is what you are seeing when it seems to blink. Just the subtle movements of your hand and movement of the target can cause this blinking to occur. In some cases you may never be able to get it to come on solid.

Dean
Phoenix, Arizona USA
Nikonians Team Member
Website: The Splendid Silence of Light

Recent Trips: Grand Canyon 2012 Glen Canyon 2012 West Clear Creek

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blw Moderator Awarded for his high level of expertise in various areas Nikonian since 18th Jun 2004Mon 30-Aug-10 12:03 PM
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#2. "RE: D40 Manual Focus Exercise"
In response to Reply # 0


Richmond, US
          

Not a boneheaded question at all.

In fact, some lenses will be much easier to use with manual focus than others: specifically, those which inherently have a lot of depth of field, like ultra-wide angle lenses. At typical shooting distances, the 11-16 produces very great DOF, so manually focusing is much easier than with some other lenses. You'll find that the green light blinks a lot less for this type of lens than with most other lenses.

_____
Brian... a bicoastal Nikonian and Team Member

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Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D60/D50/D40 (Public) topic #42995 Previous topic | Next topic


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