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Focus/Recompose vs. Selecting Focus Point

dougstroudphoto

US
29 posts

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dougstroudphoto Registered since 25th Jul 2012
Thu 25-Oct-12 01:58 AM

I am experimenting with focusing techniques to discover the best focusing results.
D800e, 24-70 2.8
Settings: F/4, 1/200, 1600

My inital test was conducted in Single Focus Mode, handheld.
The only post processing was adjusting the WB, no sharpening.

I selected a consistent point and took five shots-

Center focal point no recompose
Center focal point, recompose left
Left focal point, no recompose
Center focal point, recompose right
Right focal point, no recompose

What my test uncovered was that the sharpest image was Center focal point and no recompose. This makes sense b/c of the sharpest point in the lens and no movement.
The next sharpest images were the outside focal points. Using this method produced sharper images than using the Center focal point and recomposing to the outside of the frame.

http://imageshack.us/a/img705/3894/d800etestcfcarddsc0106f.jpg

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RECONLEY

Marietta, US
571 posts

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#1. "RE: Focus/Recompose vs. Selecting Focus Point" | In response to Reply # 0

RECONLEY Silver Member Nikonian since 18th Jun 2012
Thu 25-Oct-12 09:41 AM

Which makes sense since recomposing will tilt somewhat the plan of focus. Also the single point AF is the only AF option with the D800 that lets you choose the final AF point, so being in single AF is the way to go.

My thoughts on doing the recompose with the D800 is that with all of the data why not just bulls-eye the subject and recompose in post with an appropriate crop. If an uncropped image is not required.

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dougstroudphoto

US
29 posts

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#2. "RE: Focus/Recompose vs. Selecting Focus Point" | In response to Reply # 1

dougstroudphoto Registered since 25th Jul 2012
Fri 26-Oct-12 02:41 PM


>My thoughts on doing the recompose with the D800 is that with
>all of the data why not just bulls-eye the subject and
>recompose in post with an appropriate crop. If an uncropped
>image is not required.

No Way! Are you kidding me? I did not purchase a camera w/ this resolution to give it up b/c the focus points don't work!

My past instructors and mentors all scream to compose in camera for what you want and that is something I run my career by.

RECONLEY

Marietta, US
571 posts

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#3. "RE: Focus/Recompose vs. Selecting Focus Point" | In response to Reply # 2

RECONLEY Silver Member Nikonian since 18th Jun 2012
Fri 26-Oct-12 05:46 PM

>
>>My thoughts on doing the recompose with the D800 is that
>with
>>all of the data why not just bulls-eye the subject and
>>recompose in post with an appropriate crop. If an
>uncropped
>>image is not required.
>
>No Way! Are you kidding me? I did not purchase a camera w/
>this resolution to give it up b/c the focus points don't
>work!
>
>My past instructors and mentors all scream to compose in
>camera for what you want and that is something I run my career
>by.
>

Apparently, an uncropped image is required.

Visit my Nikonians gallery.

JosephK

Seattle, WA, US
7065 posts

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#4. "RE: Focus/Recompose vs. Selecting Focus Point" | In response to Reply # 0

JosephK Silver Member Fellow Ribbon awarded for his excellent and frequent contributions and sharing his in-depth knowledge and experience with the community in the Nikonians spirit. Nikonian since 17th Apr 2006
Fri 26-Oct-12 08:48 PM

>What my test uncovered was that the sharpest image was Center
>focal point and no recompose. This makes sense b/c of the
>sharpest point in the lens and no movement.
>The next sharpest images were the outside focal points. Using
>this method produced sharper images than using the Center
>focal point and recomposing to the outside of the frame.

Sounds like your test results match the normally expected results.

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Joseph K
Seattle, WA, USA

D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II, 50mm f/1.4 D,
17-55mm f/2.8 DX, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX

G