Cielos Azules Pixelados - D7000

[OmarD]

Buena tarde.

 

Quería realizarles una consulta.

 

De unos meses para acá he notado que mis fotos tomadas en jpg, cuando se exponen a un cielo bastante azul, forman una zona de "transición" bastante pixelada.

 

Un ejemplo de esta captura en Jerez de La Frontera, ya en tamaño pequeño se puede apreciar las zonas "degragadas":

 

_DSC7354 MINI by OmarD, on Flickr

 

Y si le hago un recorte a la imagen original se nota aún más.

 

_DSC7354 DETAIL by OmarD, on Flickr

 

 

Entre más azul el cielo, más notoria es esta zona y peor el resultado.

 

 

Datos completos del Exif:

 

ExifTool Version Number : 8.96

File Name : _DSC7354.JPG

Directory : D:/Users/OmarD/Pictures/Madrid 2011/17-Junio 2

012/Cadiz-Jerez

File Size : 3.4 MB

File Modification Date/Time : 2012:06:29 11:12:08+02:00

File Permissions : rw-rw-rw-

File Type : JPEG

MIME Type : image/jpeg

Exif Byte Order : Big-endian (Motorola, MM)

Make : NIKON CORPORATION

Camera Model Name : NIKON D7000

Orientation : Horizontal (normal)

X Resolution : 300

Y Resolution : 300

Resolution Unit : inches

Software : Ver.1.02

Modify Date : 2012:06:29 11:12:08

Artist :

White Point : 0.313 0.329

Primary Chromaticities : 0.64 0.33 0.21 0.71 0.15 0.06

Y Cb Cr Coefficients : 0.299 0.587 0.114

Y Cb Cr Positioning : Co-sited

Copyright :

Exposure Time : 1/250

F Number : 8.0

Exposure Program : Manual

ISO : 160

Sensitivity Type : Recommended Exposure Index

Exif Version : 0230

Date/Time Original : 2012:06:29 11:12:08

Create Date : 2012:06:29 11:12:08

Components Configuration : Y, Cb, Cr, -

Compressed Bits Per Pixel : 2

Exposure Compensation : 0

Max Aperture Value : 4.0

Metering Mode : Multi-segment

Light Source : Unknown

Flash : Off, Did not fire

Focal Length : 10.0 mm

Maker Note Version : 2.10

Quality : Normal

White Balance : Auto1

Focus Mode : AF-S

Flash Setting : Normal

Flash Type :

White Balance Fine Tune : 0 0

WB RB Levels : 1.89453125 1.453125 1 1

Program Shift : 0

Exposure Difference : +1.0

Compression : JPEG (old-style)

Preview Image Start : 12620

Preview Image Length : 22755

Flash Exposure Compensation : 0

ISO Setting : 160

Image Boundary : 0 0 3696 2448

External Flash Exposure Comp : 0

Flash Exposure Bracket Value : 0.0

Exposure Bracket Value : 0

Crop Hi Speed : Off (4992x3280 cropped to 4992x3280 at pixel 0

,0)

Exposure Tuning : 0

Serial Number : 3001124

VR Info Version : 0100

Vibration Reduction : Off

Active D-Lighting : Extra High

Picture Control Version : 0100

Picture Control Name : Landscape

Picture Control Base : Landscape

Picture Control Adjust : Default Settings

Picture Control Quick Adjust : Normal

Brightness : Normal

Hue Adjustment : None

Filter Effect : n/a

Toning Effect : n/a

Toning Saturation : n/a

Timezone : +01:00

Daylight Savings : Yes

Date Display Format : D/M/Y

ISO Expansion : Off

ISO2 : 159

ISO Expansion 2 : Off

Auto Distortion Control : On

Lens Type : G

Lens : 10-20mm f/4-5.6

Flash Mode : Did Not Fire

Shooting Mode : Single-Frame, [9]

Shot Info Version : 0220

Firmware Version : 1.02a

AF-C Priority Selection : Release

AF-S Priority Selection : Focus

Number Of Focus Points : 39 Points

Focus Tracking Lock On : 3 Normal

Focus Point Wrap : Wrap

AF Point Illumination : On

AF Assist : Off

Battery Order : MB-D11 First

AF-On For MB-D11 : AE/AF Lock

MB-D11 Battery Type : LR6 (AA alkaline)

Beep Pitch : Low

No Memory Card : Enable Release

ISO Display : Show ISO Sensitivity

Grid Display : On

Viewfinder Warning : On

Shooting Info Display : Auto

LCD Illumination : Off

File Number Sequence : On

Screen Tips : On

Beep Volume : 1

Reverse Indicators : + 0 -

Easy Exposure Compensation : On

Exposure Control Step : 1/3 EV

ISO Sensitivity Step : 1/3 EV

Center Weighted Area Size : 8 mm

Exposure Delay Mode : Off

CL Mode Shooting Speed : 4 fps

Max Continuous Release : 100

Auto Bracket Set : AE & Flash

Auto Bracket Order : 0,-,+

Func Button : FV Lock

Preview Button : Preview

OK Button : Select Center Focus Point

AE Lock Button : AE/AF Lock

Command Dials Reverse Rotation : No

Command Dials Change Main Sub : Off

Command Dials Aperture Setting : Sub-command Dial

Command Dials Menu And Playback : Off

Shutter Release Button AE-L : Off

Release Button To Use Dial : No

Metering Time : 6 s

Remote On Duration : 1 min

Self Timer Time : 10 s

Self Timer Interval : 0.5 s

Self Timer Shot Count : 1

Image Review Time : 10 s

Live View Monitor Off Time : 4 s

Menu Monitor Off Time : 10 s

Shooting Info Monitor Off Time : 10 s

Flash Sync Speed : 1/250 s

Flash Shutter Speed : 1/60 s

Flash Control Built-in : TTL

Flash Warning : On

Modeling Flash : On

Live View AF Area Mode : Face-Priority

Live View AF Mode : AF-C

Playback Monitor Off Time : 10 s

Noise Reduction : Off

WB GRBG Levels : 256 485 372 256

Lens Data Version : 0204

Exit Pupil Position : 85.3 mm

AF Aperture : 4.0

Focus Position : 0x05

Focus Distance : 6.31 m

Lens ID Number : 72

Lens F Stops : 5.00

Min Focal Length : 10.3 mm

Max Focal Length : 20.6 mm

Max Aperture At Min Focal : 4.0

Max Aperture At Max Focal : 5.7

MCU Version : 75

Effective Max Aperture : 4.0

Retouch History : None

Image Data Size : 3536072

Shutter Count : 29671

Flash Info Version : 0104

Flash Source : None

External Flash Firmware : n/a

External Flash Flags : (none)

Flash Commander Mode : Off

Flash Control Mode : Off

Flash Compensation : 0

Flash GN Distance : 0

Flash Color Filter : None

Flash Group A Control Mode : Off

Flash Group B Control Mode : Off

Flash Group C Control Mode : Off

Flash Group A Compensation : 0

Flash Group B Compensation : 0

Flash Group C Compensation : 0

Vari Program :

Multi Exposure Version : 0100

Multi Exposure Mode : Off

Multi Exposure Shots : 0

Multi Exposure Auto Gain : Off

High ISO Noise Reduction : Normal

Power Up Time : 2012:06:28 14:24:55

AF Info 2 Version : 0100

Contrast Detect AF : Off

AF Area Mode : Single Area

Phase Detect AF : On (39-point)

Primary AF Point : C6 (Center)

AF Points Used : Unknown (01 00 00 00 00 00 00)

Contrast Detect AF In Focus : No

File Info Version : 0100

Directory Number : 126

File Number : 7354

AF Fine Tune : Off

AF Fine Tune Index : n/a

AF Fine Tune Adj : 0

User Comment :

Sub Sec Time : 70

Sub Sec Time Original : 70

Sub Sec Time Digitized : 70

Flashpix Version : 0100

Color Space : Uncalibrated

Exif Image Width : 3696

Exif Image Height : 2448

Interoperability Index : R03 - DCF option file (Adobe RGB)

Interoperability Version : 0100

Sensing Method : One-chip color area

File Source : Digital Camera

Scene Type : Directly photographed

CFA Pattern : [Red,Green][Green,Blue]

Custom Rendered : Normal

Exposure Mode : Manual

Digital Zoom Ratio : 1

Focal Length In 35mm Format : 15 mm

Scene Capture Type : Landscape

Gain Control : None

Contrast : Normal

Saturation : Normal

Sharpness : Normal

Subject Distance Range : Unknown

Gamma : 2.2

GPS Version ID : 2.3.0.0

Thumbnail Offset : 35536

Thumbnail Length : 9118

Image Width : 3696

Image Height : 2448

Encoding Process : Baseline DCT, Huffman coding

Bits Per Sample : 8

Color Components : 3

Y Cb Cr Sub Sampling : YCbCr4:2:2 (2 1)

Aperture : 8.0

Auto Focus : On

Blue Balance : 1.453125

Image Size : 3696x2448

Lens ID : Sigma 10-20mm F4-5.6 EX DC HSM

Lens : 10-20mm f/4-5.6 G

Preview Image : (Binary data 22755 bytes, use -b option to ext

ract)

Red Balance : 1.894531

Scale Factor To 35 mm Equivalent: 1.5

Shutter Speed : 1/250

Create Date : 2012:06:29 11:12:08.70

Date/Time Original : 2012:06:29 11:12:08.70

Modify Date : 2012:06:29 11:12:08.70

Thumbnail Image : (Binary data 9118 bytes, use -b option to extr

act)

Circle Of Confusion : 0.020 mm

Depth Of Field : inf (0.57 m - inf)

Field Of View : 100.3 deg (15.12 m)

Focal Length : 10.0 mm (35 mm equivalent: 15.0 mm)

Hyperfocal Distance : 0.62 m

Light Value : 13.3

-- press any key --

 

tendrá que ver con el Picture Color o el D-Light??

[Rabla]

Entiendo que cuando dices "cuando se exponen a un cielo bastante azul, forman una zona de "transición" bastante pixelada" te refieres a lo halos que se forman.

 

Tienes Active D-Lighting : Extra High, bájalo o desactivalo.

 

Saludos