Lightroom - Lens Correction - Lens Manufactuer unknown

I have a Canon Rebel XTi and shoot in Raw. I have 3 Tamron lenses - a 10-24, 17-50 and 18-270.
I thought I'd try out the lens correction profile for my 10-24 for a few pics, but when invoking the option, it was unable to determine the len manufacturer. Though as soon as I selected 'Tamron' it then knew which lens I was using.
Should my metadata have capture the lens manufactuer?
Is there something I am missing?
Given they are all Tamron - can I set some sort of default so I don't have to select Tamron for every picture?
Thanks!

If you cannot get the right lens profile assigned using the Set Default method described in earlier posts (for example, if two different lenses that you use are identified exactly the same by LR's reading of the image metadata, so that it cannot distinguish them automatically) then it can be helpful to record the manual assignment of a given lens profile, into a Develop preset for easier application to images in the future.
To reiterate, it is enough that Lr's lens detection operates as a unique identifier, that can cause the particular correction profile to be used which you have stipulated; the actual lens description does not strictly need to be correct for the lens, in order for this to happen automatically, per image, at import or subsequently.
So a general Develop preset or default which turns on lens corrections just needs to activate the profile checkbox, and in the Profile: selector, show "Default". Then LR uses whatever it has been told is the right default for each Lens ID encountered, which may derive from its originally installed list, or else from what the user has later assigned.
A specific preset applying a particular lens profile for cases where auto detection doesn't work, will instead apply this explicitly, set as "Manual".
For example, I use some older, pre-digital Pentax lenses which have no ID chip, and report to LR as just "A series lens" or else "K or M lens" - because all the camera can do, is detect whether or not these older lenses have an auto aperture. So with those, I can use LR to filter them down by focal length (prime lenses), to help me rapidly apply a Develop preset which picks out the correct profile for each individual lens. The camera asks me for the focal length whenver it detects a legacy-mount lens has been fitted, so that it can correctly apply shake reduction, so that info is at least recorded against each image. But: most of the time, I use only one A series lens and only one M series lens, so I have LR set to "presume" the A/28 profile for the former, and the M/135 profile for the latter, unless told otherwise. I only have to intervene as described in the exceptional case, when I know I have used some other lens sharing the same class of legacy mount.
The same principles apply when third-party lens makers use ambiguous Lens IDs even for modern chipped lenses, where these codes may span across multiple, different lens models indiscriminately.
RP

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"Shading Compensation" is probably saved as metadata tag in the raw file but the raw file data is not corrected. This metadata is probably used in the included Sony software to automatically correct the raw for "Shading Compensation" but Lightroom probably does NOT use this data. You will hopefully get a reply from a Sony user.

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RicardoAngelo wrote:
I mean for color correction purposes is Adobe Lightroom better tan PS's camera raw interface ???? because for me both controls seem to be pretty much the same thing, does anyone know something about it ??
Both Camera Raw (most recent version) and Lightroom (most recent version) share the EXACT same processing pipeline...however, there are subtle differences in usability. For example, ACR 5.6 has a Point Curves Editor...Lightroom doesn't. Lightroom has a powerful capability to control output size and resolution which Camera Raw doesn't have...
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Is there a reason why all the micro4/3 lenses (panasonic, Leica and Olympus) are missing as lens corrections in all Lightroom versions?

They are not missing.
Within the last year or two many cameras do their own lens corrections before writing the JPG or even displaying the image on the back of the camera or in the electronic view finder, so Adobe does the same thing: the lens profiles are built into the camera raw engine and always applied. It’s confusing because cameras didn’t used to do this and Adobe didn’t used to do this, so we have the situation of older cameras having lens profiles you had to select from the dropdown lists, while newer cameras don’t require this. Of course removable-lens cameras still have this situation, but many/most recent P&S cameras have built-in lens corrections.
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My Lightroom lens corrections need correcting. Is this normal?

I have bought myself my 1st DSLR camera (Nikon D3100) as i now want to shoot Raw instead of Jpeg. I've always shot Jpegs in the past with my old cameras. The in-camera Jpegs from my new Nikon don't show any lens distortion. However, when i open the Raw (NEF) files in Lightroom and tick 'enable profile correction' in the Lens corrections section, the distortion correction seems too much and i have to manually adjust it every time.
The lens profile comes from Lightroom itself (not from other users), & so this doesn't seem quite right to me that the correction is somewhat wrong each time.
I'm wondering if i'm doing something wrong or that maybe its even normal to have to adjust the correction further yourself each time (and perhaps most users have to do that too)?
I've included 3 Jpegs of the same image to demonstrate the problem (detailed below):
1) The export from Lightroom with the lens distortion corrected by Lightroom (note the straight red line).
2) An exported Jpeg version of the uncorrected Nef from Lightroom (to show the full original lens distortion)
3) The original in-camera Jpeg (obviously the distortion corrected by the camera)
I've drawn straight red lines on to the images to demonstrate the differences.
Any ideas?
^ above image is a Lightroom exported Jpeg (from NEF) with lens correction ON (note the red line along the top of the roof)
^ above image is a Lightroom exported Jpeg (from NEF) with NO lens correction yet, thus showing original distortion.
^ above image is the ORIGINAL in-camera JPEG showing no distortion at all (note the red line along the top of the roof).
P.s i've taken different shots too and the problem is the same for them all (at least at 18mm anyway).
Additional information:
The Nikon D3100 has an APS-C sensor (I'm not sure if that's significant or not). Also the lens described in the profile correction matches the one from my camera.

Rob Cole wrote:
Hi Paul,
I'm really not sure exactly what DxO outputs when you choose DNG:
It's not raw data, yet preserves some ability to do raw things in Lightroom, like white balance and camera profiles.
I dunno about pulling from highlight/shadow "reserves", but note: it's different than a DNG-wrapped tif or jpeg, it may be able to pull from the highlight/shadow reserves as can be done via the DNG used for smart previews - I just don't know.
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Google 'dxo linear dng highlights.' Here's one that supports what I said:
http://forums.adobe.com/thread/663428
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Rob Cole wrote:
I still think about it when Lr's lens corrections are wonky. But my problem with Lr's lens corrections have more to do with vignetting than distortion (because I mostly shoot nature, not buildings...), and I can add manual correction and/or a dab of paint to the automatic corrections, which saves me the complication of front-ending via DxO. If distortion is your primary concern, consider balancing auto with manual distortion corrections (I've not done much of that, so no guarantee...). Also, there's the upright feature in Lr5...
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Rob Cole wrote:
PPS - DxO's purple fringe tool will get the fringe out without the artifacts of Lr's global defringer, however it may also take away real image color sometimes, and can't be done locally, so one may ultimately get better results in Lr if willing to spend a while painting local defringing.
I've never seen any artifacts caused by the LR Defringe tools (see image posted of Canon 8-15mm Fisheye lens CA), but you do need to be very careful concerning the actually settings used. After using the eyedropper tool to sample a fringe area I fine tune the settings to eliminate desaturation of areas that have similar color as the fringe area. Once you have the correct settings save it to a Develop preset for manual application. For example with my Canon 8-15mm F4L Fisheye zoom I have two (2) Develop presets of 8-12mm (Purple 2, 30/55) and 13-15mm (Purple 4, 30/55). There is no need to use Local controls with Defringe if you follow my suggestions for manually tuning the settings to prevent desaturation in like colored areas. IMHO the LR CA and Defringe tools are darn near perfect when you use them correctly!

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Lightroom Lens Profile issue ...

I know that my particular Tamron lens (SP 70-300 Di USD) is supported in ACR. Why, when in Developer, when I select Lens Corrections and select Tamron does it default to the wrong model, specifically to Tamron SP Di 28-75?

Thank you Victoria, that was very helpful. I am new LR user and learning. The more I get to know about the program the more I like it and the more I am motivated and impatient to learn functionality. This one turned out to be pretty basic; I was editing jpegs. With jpegs, in Develop all the Tamron ( et al) lens profiles are not available. When I switched to raw, they were all there and - yes - I can save them.

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Hi you all.
Recently got Lightroom, and I'm so impressed - I never imagined image organizing and adjustment could be this easy and at the same time very advanced.
I have a problem, however. Lightroom (and Adobe Bridge, too) does not correctly read the EXIF data of Lens type and Camera Serial Number.
The first ~50 images I took and imported turned out correctly and displayed my serial number and lens (18-55 mm Canon) inside Lightroom.
But now, whenever I import photos into Lightroom or view them with Bridge, they all display "Unknown Lens" and "Unknown Camera Serial Number".
At first I thought that maybe the camera didn't correctly record this data on to the photos anymore for some reason, but a comparison using EXIFToolGUI shows that the metadata is EXACTLY the same as in the photos that display this info in Lightroom correctly.
I have not done any changes to either my camera (Canon EOS-350D / Digitial Rebel XT) or lens (the kit lens, 18-55 mm Canon).
It seems that for some reason, Lightroom has stopped reading these two fields of metadata - all the other fields, such as aperture and shutter speed, all display correctly.
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I have attached one of the photos that Lightroom doesn't read the data correctly from. Try importing it into your Lightroom, and see if how the info displays.
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Are these jpgs or RAW? I have only edited metadata on jpgs.
It looks like Vista's import stripped out all the makernotes. I didn't look at your file but that seems to be what happened. Be warned, Photoshop CS2 also strips out makernotes!
Now how to fix the problem. If you want to edit the metadata on files already loaded into LR, you need to write out your metadata to the files first, then edit the metadata, then read the new metadata into LR. This is scarey for me, so I always make sure my backup is up to date on the images first.
What to do... You probably can't put back all of the makernotes, so what to do to get the lens information in. I don't know if putting back in the makernote LensType would trigger LR to reconsider its lens information. I don't know. If it had a real lens name, my guess would be no because it would have an XMP::Lens field which would override. But maybe unknown lens doesn't have this field and it would re-read the makernotes.
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I would do this with one file first. If the lens shows up after you read the new metadata into LR, you know you have it right.
Note, exiftool can write backup files for each file. This makes too much of a mess for me. I prefer to copy the directory first (I have copies anyway, I just have to make sure the backups are up to date).
Good luck! I'm struggling with a similar situation where the same lens used by two different cameras is coming out with a different name. I need to go back and "fix" the names in the images already imported, and then develop my procedure for setting a single unique name before I load new images into LR. Not too much of a problem because I'm loading in GPS information anyway... What's another call to exiftool...
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Lightroom - Lens Correction - Lens Manufactuer unknown

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