Post your LensType / LensID discoveries here

[Phil Harvey]

Hi Alan,

I don't think the ExifTool extracts lens information for this model.  But please me know if you can discover the meaning of any "Unknown" tags when you run "exiftool -u" on your images.

- Phil

[Batty]

Hello, I'm getting Unknown for the new "Sigma 18-35mm F1.8 DC" lens for Nikon:

ExifTool Version Number         : 9.38
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D7100
Maker Note Version              : 2.11
Lens Type                       : G
Lens                            : 18-35mm f/1.8
Lens Data Version               : 0204
Lens ID Number                  : 139
Lens ID                         : Unknown (8B 4C 2D 44 14 14 4B 06)
Lens                            : 18-35mm f/1.8 G

[Phil Harvey]

Thanks Batty!

- Phil

[Batty]

Yay, thanks Phil, I can verify the Sigma 18-35mm F1.8 DC HSM Lens ID now reports properly in 9.39:

Camera Model Name               : NIKON D7100
Lens ID                         : Sigma 18-35mm F1.8 DC HSM

[reisschuessel]

Hi Phil,

i'd like to add one new and one "semi-unknown" Lens-ID's.
Both for Nikon F-Mount.
I used ExifTool 9.45 and attached the sample-files.

Sigma 35mm F1.4 DG HSM

Code Select Expand

Lens Type                       : G
Lens                            : 35mm f/1.4
Lens F Stops                    : 7.00
Lens Data Version               : 0204
Lens ID Number                  : 145
Lens F Stops                    : 7.00
Lens ID                         : Unknown (91 54 44 44 0C 0C 4B 06)
Lens                            : 35mm f/1.4 G

Sigma 15mm F2,8 EX DG Diagonal-Fisheye

Code Select Expand

Lens Type                       : D
Lens                            : 15mm f/2.8
Lens F Stops                    : 6.00
Lens Data Version               : 0204
Lens ID Number                  : 234
Lens F Stops                    : 6.00
Lens ID                         : Unknown (EA 48 27 27 24 24 1C 02) Sigma 15mm F2.8 EX Diagonal Fisheye ?


Thanks for your great work!


-Niels

[Phil Harvey]

Hi Niels,

Excellent, thanks!  These will appear in ExifTool 9.46.

- Phil

[Ralph]

My Sigma lens "Sigma AF 10-20mm F4-5.6 EX DC" seem to generate different TAGs when attached to the old Konica Minolta 7D and to the new Sony A77. For the "lens TAGs" only the Lens ID on the Sony A77 is correct. Please see below exiftool output for details. I am unsure if the A77 writes wrong tags.

C:\Users\Ralph\Documents\temp\exiftool>exiftool.exe -*model* -*lens* PICT2263.MRW DSC01525.JPG
======== PICT2263.MRW
Camera Model Name               : DYNAX 7D
Lens Type                       : Minolta AF 28-80mm F3.5-5.6 (D) or Sigma Lens
Lens ID                         : Sigma AF 10-20mm F4-5.6 EX DC or Sigma AF 12-24mm F4.5-5.6 EX DG
======== DSC01525.JPG
Camera Model Name               : SLT-A77V
Sony Model ID                   : SLT-A77 / SLT-A77V
Model Release Year              : 2011
Lens Model                      : 28-80mm F3.5-5.6
Lens Type                       : Minolta AF 28-80mm F3.5-5.6 (D) or Sigma Lens
Lens Spec                       : Unknown (00 0 0 0 0 00)
Lens Mount                      : A-Mount
Lens Format                     : Full-frame
Lens Info                       : 28-80mm f/3.5-5.6
Lens Model                      : 28-80mm F3.5-5.6
Lens ID                         : Sigma AF 10-20mm F4-5.6 EX DC
    2 image files read

[Phil Harvey]

Hi Ralph,

It looks like ExifTool is handling this lens as best it can.  There probably just isn't enough information written by the 7D to allow exiftool to distinguish between the possible lenses.  Unfortunately, Sigma uses the same LensType number for many of its lenses.

- Phil

[afx]

Sigma 28-70mm 1:2.8 EX DG D

Code Select Expand

$ exiftool afx-2013-12-20-001.nef |egrep -i "lens|make|model"
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D700
Maker Note Version              : 2.10
Lens Type                       : G
Lens                            : 28-70mm f/2.8
Modeling Flash                  : Off
Lens Data Version               : 0203
Lens ID Number                  : 121
Lens F Stops                    : 6.00
Lens ID                         : Unknown (79 48 3C 5C 24 24 1C 06) Sigma 28-70mm F2.8 EX DG ?
Lens                            : 28-70mm f/2.8 G

cheers
afx

[Phil Harvey]

Great, thanks.

This lens different from the existing "Sigma 28-70mm F2.8 EX DG" recognized by ExifTool, or is it the same lens just with a new ID (which would be typical)?

- Phil

[afx]

This lens different from the existing "Sigma 28-70mm F2.8 EX DG" recognized by ExifTool, or is it the same lens just with a new ID (which would be typical)?

No clue actually, I only have this old clunker...
No idea if there where several variants of the EX DG made.

sorry
afx

[Phil Harvey]

OK, thanks.  I'll add it as "Sigma 28-70mm F2.8 EX DG D" unless I hear otherwise.

- Phil

[afx]

OK, thanks.  I'll add it as "Sigma 28-70mm F2.8 EX DG D" unless I hear otherwise.

B&H lists the lens in the name without the D but the image has the D.
http://www.bhphotovideo.com/c/product/352405-REG/Sigma_549306_28_70mm_f_2_8_EX_DG.html

I wish there where a lens site for Sigmas like the one for Nikons...
The only thing I found is this:
http://www.sigmauser.co.uk/index.php?option=com_content&view=article&id=51&Itemid=67

No mention of a D variant.

cheers
afx

[Phil Harvey]

Thanks.  I've sent an email to my Nikon lens expert to ask about this.

- Phil

[Beholder3]

I just saw a RAW shot with the ultra cheap EF 200-400mm f/4L IS USM Extender 1.4X lens : http://daten-transport.de/download.php?id=UtDH4GZVLN2x&dateinummer=265141

This shows up as lens type "Unknown (499)", while the lens model is correct. Same as with the new Tamron (I did a separate thread for that)