Ciao a tutti non sono sicuro di aprire la discussione nell'area giusta, nel caso chiedo già scusa.
Vorrei sapere con che obiettivo è stata scattata una foto.
Ho scaricato Opanda IExif 2.3 ma non so dove leggere (sempre se ci sia scritto) con quale obiettivo è stata scattata la foto sotto-esame.
Grazie in anticipo

prova a postarla qui ..cosi' vediamo cosa si puo' fare.

Se usi "exiftool"

http://www.sno.phy.queensu.ca/~phil/exiftool/

trovi il nome dell'obbiettivo nella property "Lens ID" (o qualcosa di simile, dipende dalla fotocamera).


Ad esempio:Questo e' un esempio di quello che il tool e' in grado di fornire


ExifTool Version Number : 8.87
File Name : DSC_1464.NEF
Directory : .
File Size : 40 MB
File Modification Date/Time : 2012:02:07 14:44:16+01:00
File Permissions : rw-rw-rw-
File Type : NEF
MIME Type : image/x-nikon-nef
Exif Byte Order : Big-endian (Motorola, MM)
Make : NIKON CORPORATION
Camera Model Name : NIKON D800
Orientation : Horizontal (normal)
Software : Ver.1.00
Modify Date : 2012:02:07 14:42:44
Artist : VAP
Jpg From Raw Start : 861696
Jpg From Raw Length : 1808011
Y Cb Cr Positioning : Co-sited
Image Width : 7424
Image Height : 4924
Bits Per Sample : 14
Compression : Nikon NEF Compressed
Photometric Interpretation : Color Filter Array
Strip Offsets : 2670080
Samples Per Pixel : 1
Rows Per Strip : 4924
Strip Byte Counts : 39043682
X Resolution : 300
Y Resolution : 300
Planar Configuration : Chunky
Resolution Unit : inches
CFA Repeat Pattern Dim : 2 2
CFA Pattern 2 : 0 1 1 2
Subfile Type : Reduced-resolution image
Other Image Start : 184832
Other Image Length : 676786
Reference Black White : 0 255 0 255 0 255
Copyright : VAP
Exposure Time : 1/60
F Number : 2.8
Exposure Program : Aperture-priority AE
ISO : 400
Sensitivity Type : Recommended Exposure Index
Create Date : 2012:02:07 14:42:44
Exposure Compensation : 0
Max Aperture Value : 1.7
Metering Mode : Multi-segment
Light Source : Unknown
Flash : Off, Did not fire
Focal Length : 50.0 mm
Maker Note Version : 2.10
Quality : RAW
White Balance : Auto1
Focus Mode : AF-S
Flash Setting :
Flash Type :
White Balance Fine Tune : 0 0
WB RB Levels : 1.84765625 1.578125 1 1
Program Shift : 0
Exposure Difference : 0
Preview Image Start : 25348
Preview Image Length : 101182
Flash Exposure Compensation : 0
ISO Setting : 400
External Flash Exposure Comp : 0
Flash Exposure Bracket Value : 0.0
Exposure Bracket Value : 0
Crop Hi Speed : Off (7424x4924 cropped to 7424x4924 at pixel 0,0)
Exposure Tuning : 0
Serial Number : 1001083
Color Space : sRGB
VR Info Version : 0100
Vibration Reduction : Off
Active D-Lighting : Off
Picture Control Version : 0100
Picture Control Name : Standard
Picture Control Base : Standard
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 : +03:00
Daylight Savings : No
Date Display Format : D/M/Y
ISO Expansion : Off
ISO2 : 400
ISO Expansion 2 : Off
Vignette Control : Normal
Auto Distortion Control : Off
Lens Type : G
Lens : 50mm f/1.8
Flash Mode : Did Not Fire
Shooting Mode : Continuous
Contrast Curve : (Binary data 578 bytes, use -b option to extract)
Shot Info Version : 0222
Firmware Version : 1.00b
NEF Compression : Lossless
Noise Reduction : Off
NEF Linearization Table : (Binary data 46 bytes, use -b option to extract)
Color Balance Unknown : 0217[...]
Lens Data Version : 0204
Exit Pupil Position : 73.1 mm
AF Aperture : 1.9
Focus Position : 0x11
Focus Distance : 0.56 m
Lens ID Number : 176
Lens F Stops : 6.33
Min Focal Length : 50.4 mm
Max Focal Length : 50.4 mm
Max Aperture At Min Focal : 1.8
Max Aperture At Max Focal : 1.8
MCU Version : 178
Effective Max Aperture : 1.8
Raw Image Center : 3712 2462
Retouch History : None
Shutter Count : 1590
Flash Info Version : 0105
Multi Exposure Version : 0100
Multi Exposure Mode : Off
Multi Exposure Shots : 0
Multi Exposure Auto Gain : Off
High ISO Noise Reduction : Off
Power Up Time : 0000:00:00 00:00:00
AF Info 2 Version : 0100
Contrast Detect AF : Off
AF Area Mode : Single Area
Phase Detect AF : On (51-point)
Primary AF Point : A8
AF Points Used : A8
Contrast Detect AF In Focus : No
File Info Version : 0100
Directory Number : 101
File Number : 1464
AF Fine Tune : Off
AF Fine Tune Index : n/a
AF Fine Tune Adj : 0
User Comment :
Sub Sec Time : 30
Sub Sec Time Original : 30
Sub Sec Time Digitized : 30
Sensing Method : One-chip color area
File Source : Digital Camera
Scene Type : Directly photographed
Custom Rendered : Normal
Exposure Mode : Auto
Digital Zoom Ratio : 1
Focal Length In 35mm Format : 50 mm
Scene Capture Type : Standard
Gain Control : Low gain up
Contrast : Normal
Saturation : Normal
Sharpness : Normal
Subject Distance Range : Unknown
GPS Version ID : 2.3.0.0
Date/Time Original : 2012:02:07 14:42:44
TIFF-EP Standard ID : 1 0 0 0
Aperture : 2.8
Auto Focus : On
Blue Balance : 1.578125
CFA Pattern : [Red,Green][Green,Blue]
Image Size : 7424x4924
Jpg From Raw : (Binary data 1808011 bytes, use -b option to extract)
Lens ID : AF-S Nikkor 50mm f/1.8G
Lens : 50mm f/1.8 G
Other Image : (Binary data 676786 bytes, use -b option to extract)
Preview Image : (Binary data 101182 bytes, use -b option to extract)
Red Balance : 1.847656
Scale Factor To 35 mm Equivalent: 1.0
Shutter Speed : 1/60
Create Date : 2012:02:07 14:42:44.30
Date/Time Original : 2012:02:07 14:42:44.30
Modify Date : 2012:02:07 14:42:44.30
Circle Of Confusion : 0.030 mm
Depth Of Field : 0.02 m (0.55 - 0.57)
Field Of View : 36.3 deg (0.37 m)
Focal Length : 50.0 mm (35 mm equivalent: 50.0 mm)
Hyperfocal Distance : 29.72 m
Light Value : 6.9

Il tuo interesse a sapere con quale obiettivo è stata ottenuta una foto è legittimo.
Se la foto ti piace, l'obiettivo usato, così come la macchina, li ritengo un particolare marginale. Io mi chiederei altro: la luce, la composizione, il punto di vista ecc. Credimi, sono più importanti dell'obiettivo.
Solo il consiglio di un vecchio fotografo.
Un saluto
Enrico

50mm 1.8 g