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Fine tuning Focus for Mushy Pictures.... It works for me.

JohnE Nikon

New HArtford, US
932 posts

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JohnE Nikon Registered since 15th Jun 2010
Tue 08-Mar-11 02:08 AM | edited Tue 08-Mar-11 01:37 PM by JohnE Nikon

I wanted to start this post as there has been some controversy regarding focus fine tuning.

I focus fine tuned 3 of my 8 lenses. 2 "needed" <4 units of fine tuning. While 1, my 35-70 2.8 AF lens needed -18. The others did not need any.

I used charts downloaded online and shot on a tripod with remote at 45 degree angle.

Below are 2 shots of my daughter 1 with fine tuning on and one with it off. This lens has no focusing motor so the cameras motor focuses it. All other lenses are AFS with a lens motor. I'm not sure if this matters.

All shots on tripod with exposure delay on. There is an approx 50% crop. Center focus was placed on her right eye.

I did not sharpen images and left default +3. Also lens is sharper at f 8.



Click on image to view larger version

File Info 1
File: DSC_3278.NEF
Date Created: 3/7/2011 8:17:33 PM
Date Modified: 3/7/2011 9:39:06 PM
File Size: 17.2 MB
Image Size: L (4928 x 3264)
File Info 2
Date Shot: 3/7/2011 20:19:52.40
Time Zone and Date: UTC-5, DST:ON
Image Quality: Lossless Compressed RAW (14-bit)
Artist:
Copyright: John Ellis
Image Comment: C John Ellis
Camera Info
Device: Nikon D7000
Lens: 35-70mm F/2.8D
Focal Length: 35mm
Focus Mode: AF-S
AF-Area Mode: Single
VR:
AF Fine Tune: ON(-18)
Exposure
Aperture: F/2.8
Shutter Speed: 1/320s
Exposure Mode: Manual
Exposure Comp.: 0EV
Exposure Tuning:
Metering: Matrix
ISO Sensitivity: ISO 100
Flash
Device: Built-in Flash
Flash Sync Mode: Front Curtain
Flash Mode: i-TTL-BL, -0.7EV
Image Settings
White Balance: Auto1, 0, 0
Color Space: sRGB
High ISO NR: OFF
Long Exposure NR: OFF
Active D-Lighting: OFF
Image Authentication:
Vignette Control:
Auto Distortion Control: OFF
Picture Control
Picture Control: STANDARD
Base: STANDARD
Quick Adjust: 0
Sharpening: 3
Contrast: 0




Click on image to view larger version


Date Modified: 3/7/2011 9:52:13 PM
File Size: 20.3 MB
Image Size: L (4928 x 3264)
File Info 2
Date Shot: 3/7/2011 20:20:14.10
Time Zone and Date: UTC-5, DST:ON
Image Quality: Lossless Compressed RAW (14-bit)
Artist:
Copyright: John Ellis
Image Comment: C John Ellis
Camera Info
Device: Nikon D7000
Lens: 35-70mm F/2.8D
Focal Length: 35mm
Focus Mode: AF-S
AF-Area Mode: Single
VR:
AF Fine Tune: OFF
Exposure
Aperture: F/2.8
Shutter Speed: 1/320s
Exposure Mode: Manual
Exposure Comp.: 0EV
Exposure Tuning:
Metering: Matrix
ISO Sensitivity: ISO 100
Flash
Device: Built-in Flash
Flash Sync Mode: Front Curtain
Flash Mode: i-TTL-BL, -0.7EV
Image Settings
White Balance: Auto1, 0, 0
Color Space: sRGB
High ISO NR: OFF
Long Exposure NR: OFF
Active D-Lighting: OFF
Image Authentication:
Vignette Control:
Auto Distortion Control: OFF
Picture Control
Picture Control: STANDARD
Base: STANDARD
Quick Adjust: 0
Sharpening: 3
Contrast: 0
Brightness: 0
Saturation: 0
Hue: 0



Attachment#1 (jpg file)
Attachment#2 (jpg file)

JohnE Nikon
https://plus.google.com/photos/104310967428146619677/albums?hl=en

https://picasaweb.google.com/104310967428146619677


"Cameras and lenses are simply tools to place our unique vision on film. Concentrate on equipment and you'll take technically good photographs. Concentrate on seeing the light's magic colors and your images will stir the soul." Jack Dykinga

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               Reply message Repeat test with flat focus test.
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               Reply message RE:This perhaps sums up the challenges of fine tune
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