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Re: [OM] Manual Focus vs AF

Subject: Re: [OM] Manual Focus vs AF
From: "Jim Nichols" <jhnichols@xxxxxxxxxxxxx>
Date: Sat, 9 May 2009 17:05:14 -0500
Thanks, Chuck.  I remember seeing that when I first read the manual (yes, I 
did read the manual), but I never tried it.  As to manual focus with the ZD 
14-54, the focus-by-wire ability just never worked for me.

Thanks.  I may give it a try.

Jim Nichols
Tullahoma, TN USA
----- Original Message ----- 
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Saturday, May 09, 2009 3:38 PM
Subject: Re: [OM] Manual Focus vs AF


> See page 77 of the E-510 manual which discusses moving the focus button
> off the shutter button to the AEL/AFL button on the back of the camera.
>  Once this change is made (I did the equivalent on my 5D a long time
> ago) you must deliberately focus using the AFL (auto focus lock).  I set
> my camera such that only the center autofocus point is used.  I focus
> using only the center point and the AFL button and then recompose if
> necessary.  That's what would have captured your snake using autofocus.
>  But until you get used to it you're likely to lose a shot or two by
> forgetting to focus before pressing the shutter button.  But once you've
> done this I don't think you'll go back.  It's especially handy when
> shooting moderately distant things at medium to small apertures when
> there really isn't any need to refocus or when trying to take advantage
> of hyperfocal or near hyperfocal focusing without switching into manual
> mode where it's possible to bump the focus ring.
>
> I have seen some pretty silly stuff on the net bemoaning loss of focus
> from recomposition.  That's possible but takes a pretty extreme case.
> Don't recompose when shooting from 1 foot at f/1.4 for example.  :-)
>
> Chuck Norcutt
>
> Jim Nichols wrote:
>> In looking back at the snake photo that I posted yesterday, and
>> examining the image while recalling the difficulty in getting the ZD
>> 14-54, at 54mm, to grab a focus point, I am convinced that the manual
>> focus 55mm gives me a better chance of getting the proper focus
>> point.  In this busy image, I think that the AF would never have
>> found the snake's eye as the focus point.
>>
>> Anyone have experience in this area?
>>
>> Here is the photo once more:
>>
>> http://gallery.leica-users.org/v/OldNick/Green+Snake+23a.tif.html
>>
>> Jim Nichols Tullahoma, TN USA
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