shy Tamron SP AF70-200mm F/2.8 Di LD (IF) Macro

gkopeliadis · 02-03-2009, 08:05 AM

My new Tamron SP AF70-200mm F/2.8 Di LD (IF) on my K10 is too shy to show up a name in the EXIF. Is it normal for this lens?

troyz · 02-03-2009, 03:13 PM

Originally posted by gkopeliadis

My new Tamron SP AF70-200mm F/2.8 Di LD (IF) on my K10 is too shy to show up a name in the EXIF. Is it normal for this lens?

Depends on what tool you're using to read the EXIF; the EXIF data structure contains numeric codes rather than a names. The EXIF reader has to look up the lens name from a table.

Pentax Tags

To get the name right your lens has to send a unique code (sometimes third-party manufacturers use the same code for different lenses or re-use the code for a Pentax lens) and the tool has to have the correct entry in its lens name table.

ivoire · 02-03-2009, 03:26 PM

it shows up when using the k20d, on my unit.

**stevebrot** · 02-03-2009, 04:15 PM

Originally posted by troyz

Depends on what tool you're using to read the EXIF; the EXIF data structure contains numeric codes rather than a names. The EXIF reader has to look up the lens name from a table.

Pentax Tags

To get the name right your lens has to send a unique code (sometimes third-party manufacturers use the same code for different lenses or re-use the code for a Pentax lens) and the tool has to have the correct entry in its lens name table.

Troy is correct. Sometimes processing the file through a product like Adobe Lightroom will result in translation of the code to a lens model with that data added to the exif, though the name assignment is not always accurate. For example: my Sigma 50/2.8 EX DG Macro is tagged as a Pentax 50/2.8 Macro (would be that it were true

) by Lightroom because Sigma uses the id code for the Pentax lens.

Steve

gkopeliadis · 02-04-2009, 02:12 AM

Originally posted by stevebrot

Troy is correct. Sometimes processing the file through a product like Adobe Lightroom will result in translation of the code to a lens model with that data added to the exif, though the name assignment is not always accurate. For example: my Sigma 50/2.8 EX DG Macro is tagged as a Pentax 50/2.8 Macro (would be that it were true

) by Lightroom because Sigma uses the id code for the Pentax lens.

Steve

I use Lightroom v1.4 allright. Any workaround? I use my photographs sorted by lens many times ...

**NeverSatisfied** · 02-04-2009, 05:51 AM

I use LR 1.4 and just discovered the same thing downloading photos taken with the K20D and Tamron 70-200. I remember trialing a Sigma 100-300 that LR mis-labeled as a Sigma 70-200, but this Tamron gets no identifier at all!

There must be a way to create a lens identifier in LightRoom. Haven't had time to study through it yet, but I picked up an excellent reference manual on LightRoom, "The Adobe PHOTOSHOP LIGHTROOM 2 Book", by Martin Evening. Although it's for LR 2 at least 90% of the information still applies to LR 1.4. Hopefully I'll have an answer for you within the next couple days.
Paul

gkopeliadis · 02-04-2009, 05:58 AM

Originally posted by NeverSatisfied

"The Adobe PHOTOSHOP LIGHTROOM 2 Book", by Martin Evening. Although it's for LR 2 at least 90% of the information still applies to LR 1.4. Hopefully I'll have an answer for you within the next couple days.
Paul

Still in Europe Adobe wants 125€ to upgrade from Lightroom 1.4 to 2

emalvick · 02-04-2009, 08:48 AM

While I don't have Lightroom, I've run across similar problems with my Tamron 17-50. My DAM software showed the lens as the code only rather than a name.

I couldn't program the code to name into the software, but I was able to use EXIFTools to write the EXIF Name to the appropriate files, although it was a bit of work. Fortunately, it was the only lens I was having the problem with, so all I had to do was take all the photos without lens info and run them at once.

Aside from that, the program I had problems with updated its lens database once I let it know the issue.

02-03-2009, 08:05 AM	#1
gkopeliadis Veteran Member Join Date: Mar 2008 Location: ATHENS, GREECE Posts: 311	shy Tamron SP AF70-200mm F/2.8 Di LD (IF) Macro My new Tamron SP AF70-200mm F/2.8 Di LD (IF) on my K10 is too shy to show up a name in the EXIF. Is it normal for this lens?

02-04-2009, 05:51 AM	#6
NeverSatisfied Site Supporter Join Date: Dec 2007 Location: S.E. Michigan Posts: 666	Same Here I use LR 1.4 and just discovered the same thing downloading photos taken with the K20D and Tamron 70-200. I remember trialing a Sigma 100-300 that LR mis-labeled as a Sigma 70-200, but this Tamron gets no identifier at all! There must be a way to create a lens identifier in LightRoom. Haven't had time to study through it yet, but I picked up an excellent reference manual on LightRoom, "The Adobe PHOTOSHOP LIGHTROOM 2 Book", by Martin Evening. Although it's for LR 2 at least 90% of the information still applies to LR 1.4. Hopefully I'll have an answer for you within the next couple days. Paul

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02-03-2009, 03:13 PM	#2
troyz Veteran Member Join Date: May 2008 Posts: 389	Originally posted by gkopeliadis My new Tamron SP AF70-200mm F/2.8 Di LD (IF) on my K10 is too shy to show up a name in the EXIF. Is it normal for this lens? Depends on what tool you're using to read the EXIF; the EXIF data structure contains numeric codes rather than a names. The EXIF reader has to look up the lens name from a table. Pentax Tags To get the name right your lens has to send a unique code (sometimes third-party manufacturers use the same code for different lenses or re-use the code for a Pentax lens) and the tool has to have the correct entry in its lens name table.

02-03-2009, 03:26 PM	#3
ivoire Pentaxian Join Date: Mar 2007 Location: chicago burbs Photos: Gallery Posts: 3,381	it shows up when using the k20d, on my unit.

02-03-2009, 04:15 PM	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 30,736	Originally posted by troyz Depends on what tool you're using to read the EXIF; the EXIF data structure contains numeric codes rather than a names. The EXIF reader has to look up the lens name from a table. Pentax Tags To get the name right your lens has to send a unique code (sometimes third-party manufacturers use the same code for different lenses or re-use the code for a Pentax lens) and the tool has to have the correct entry in its lens name table. Troy is correct. Sometimes processing the file through a product like Adobe Lightroom will result in translation of the code to a lens model with that data added to the exif, though the name assignment is not always accurate. For example: my Sigma 50/2.8 EX DG Macro is tagged as a Pentax 50/2.8 Macro (would be that it were true ) by Lightroom because Sigma uses the id code for the Pentax lens. Steve

02-04-2009, 02:12 AM	#5
gkopeliadis Veteran Member Join Date: Mar 2008 Location: ATHENS, GREECE Posts: 311 Original Poster	Originally posted by stevebrot Troy is correct. Sometimes processing the file through a product like Adobe Lightroom will result in translation of the code to a lens model with that data added to the exif, though the name assignment is not always accurate. For example: my Sigma 50/2.8 EX DG Macro is tagged as a Pentax 50/2.8 Macro (would be that it were true ) by Lightroom because Sigma uses the id code for the Pentax lens. Steve I use Lightroom v1.4 allright. Any workaround? I use my photographs sorted by lens many times ...

02-04-2009, 05:58 AM	#7
gkopeliadis Veteran Member Join Date: Mar 2008 Location: ATHENS, GREECE Posts: 311 Original Poster	Originally posted by NeverSatisfied "The Adobe PHOTOSHOP LIGHTROOM 2 Book", by Martin Evening. Although it's for LR 2 at least 90% of the information still applies to LR 1.4. Hopefully I'll have an answer for you within the next couple days. Paul Still in Europe Adobe wants 125€ to upgrade from Lightroom 1.4 to 2

02-04-2009, 08:48 AM	#8
emalvick Pentaxian Join Date: Feb 2008 Location: Davis, CA Photos: Gallery Posts: 1,526	While I don't have Lightroom, I've run across similar problems with my Tamron 17-50. My DAM software showed the lens as the code only rather than a name. I couldn't program the code to name into the software, but I was able to use EXIFTools to write the EXIF Name to the appropriate files, although it was a bit of work. Fortunately, it was the only lens I was having the problem with, so all I had to do was take all the photos without lens info and run them at once. Aside from that, the program I had problems with updated its lens database once I let it know the issue.