Lens profile question

I've done a lot of field work with a Canon G9, and it would be extremely helpful to have a lens profile, but I operate the camera remotely, and in this mode, it only shoots jpegs. I have 3 questions:
1) Is there a G9 lens profile for jpeg?
2) Is it possible to convert my jpegs to RAW?
3) Would it be possible to use an existing G9 lens profile (RAW) on images converted from jpeg, or would that be futile?

You can do number 3 (convert a raw profile to JPEG) with usually okay results, and I've posted how to do that on numerous occasions.
Change all the lines that look like:
<stCamera:CameraRawProfile>True</stCamera:CameraRawProfile>
to False (preferably in a new file).

Similar Messages

Fuji X100S Lens Profile Question

I recall reading here that the lens profile for the Fuji X100S is handled automatically in LR. One should not select the X100 profile because that would amount to double-profiling the image. Yet now I read that ACR 8.4RC has a profile for the X100S.
Does this mean that we have been going without a profile all this time?

There is a built-in lens profile that is always applied and cannot be turned off. The vignetting and chromatic aberration were and continue to be corrected by this profile, as they have always been. There is a new information box in ACR 8.4 and presumably soon in LR 5.4 that indicates this correction is being applied.
Additionally, I enabled the new external lens profile. The vignetting and geometric distortion were corrected by this profile.
So the vignetting is being corrected twice, once by the internal profile and once by the external profile. I have let Eric Chan from Adobe this is happening and he has acknowledged he’ll be looking into it.
Until Adobe fixes this double correction, the Vignetting slider needs to be set to 0 when the external lens profile is enabled to turn off the external profile’s extra vignetting correction.

Another Lens Profile Enable question

I know this question has been asked repeatedly and I believe have read all the answers to date but is it possible to keep the check box checked for each new picture being developed in Lightroom 3.4. The default profile works fine but the box has to be checked for each new photo and this is disruptive of a smooth workflow. If it is not possible please let me know. thanks jc

Thanks Beat, I was unaware of the performance impact Lens Profile corrections have on the Spot Removal tools.
If you don't normally use the Spot Removal tool on your images (I don't), then you are better off enabling Lens Profile in the default Develop settings. For those few images that need Spot Removal work simply uncheck 'Enable Profile Corrections.' Don't forget to re-enable lens profiles when done to see your final results.
I also suggest determining your own lens profile default settings. I use Distortion '0', Vignetting 50-75, and C. abberation 100. REASON: Distortion setting will cause some cropping of the image when applying correction and in most images distortion is not visible. I suggest manually selecting Distortion correction only for those images that exhibit obvious straight line curvature. I actually find most pictures shot with my highest distortion lens look better with '0' Distortion correction. The Vignetting setting at 100% can look unnatural and may cause areas toward the corners of your image to lose some sharpness, especially with very wide angle lenses. I set my default for 50% Vignetting and rarely see a need for more. The C. aberration control does an excellent job of correction and has no other issues, so I leave it at 100%.
I suggest you try it for yourself with each individual lens and make your own judgment – Your mileage may vary dependent on lens performance and subjects. Certainly feel free to set your default lens profiles settings differently for each lens where you feel it looks best.....and that may be 100 for all of them. You can always "fine-tune" the adjustments for images that require it.
To change the lens profile default settings, adjust all sliders to the new settings, click the down-arrow next to 'Setup' under 'Lens Corrections,' and select 'Save New Lens Profile Defaults.' You can also choose 'Reset Lens Profile Settings' to return to 100, 100, 100 default.

Lens Profile Downloader question

I have downloaded the latest version of Adobe Lens Profile Downloader 1.0.1, and I have AIR installed (as required), but the downloader won't install. It gives the message "The application cannot be installed due to a certificate problem. ..."
What should I do to get it to install?
Steve

Thanks for your response. I followed the link, and unfortunately the particular problem of failure to install wasn't solved there either.
I found another link for a similar certificate problem (involving installation of another Adobe product) and the advice was to uninstall Adobe Download Manager and reinstall the latest version. However when I went to the oOntrol Panel (Windows 7), there is no listing to indicate that Adobe Download Manger is installed.
It is all rather strange, as I have the earlier version of Lens Profile Downloader installed and it works fine (I am familiar with profiles and have created my own, which I have shared on the Adobe server).

Tokina 11-16 lens profile-download question

Lens profile downloader_p3_102510.air then clicking on this did not produce any results ....although AdobeAir is on the hard drive ...so I downloaded on 7/12 the AdobeAirInstaller so it might be that my air version is old since its a version 1.## and this download indicates a higher version.
So the only way to download a lens profile is with this downloader ? OR
lensprofile_creator_p3_win_042711.zip Does this have the capacity to view shared lens profiles and download?
Does this downloader go automatically to the storage location and produce a list from which to choose?
The Tokina lens arrived yesterday along with a 7D and I didn't value the lens profile corrections until I had to adjust a wide view of a building, one of the first test shots.
I have to admit I'm a little nervous about the above installs and then searching for the lens profile download . Its likely the AIR feature since in the past I did get errors in the event log connected with AdobeAir.
I guess I'm double checking on routines that others have used.
Rose

I cannot figure out how the download is to begin. I have clicked on Download....the bar fills with a colour and no file arrives on my hard drive.
You need to click on the gold box near the top right of the screen that says 'Upload file.' You will be prompted to create a "free account."
OHho...factory built in tilt....is that so?....I have wondered about that because its just TOO consistent and I have lined up with an object on occassion. Good info to include the tilt into the preset.
Shoot a picture of a window frame that nearly fills the viewfinder and make sure it is perfectly lined up on all four sides. Using a tripod helps. If you see a tilt, then you have the factory assembly defect of a "tilted" viewfinder image. Don't be surprised if it is also a little off-center! My 300D viewfinder is tilted clockwise and to the right slightly. Canon repair may be able to adjust it, but since it was so slight I never bothered.
AND specifics according to the camera serial number... I haven't had to deal with that to date but I have read about it,so its good that the code refers to the camera serial number rather than having to make specific settings.
Please read my correction note – There is no need to do this unless you own two of the same camera model and need to set the defaults differently for each.
I've just used the Jao, Nikon profile on a few Lake Huron sunset shots and a slight correction was made but I still had a tilt ....the lake was running downhill to the north <grin>
You are confusing "rectilinear distortion" such as "barrel" and "pin cushion" distortion with "perspective distortion!" ALL super wide-angle lenses can exhibit significant perspective distortion in different shooting situations, which can be very useful for "creative effects." Vertical perspective distortion is created when the camera is tilted up or down, and Horizontal perspective distortion is created when the camera pointed left or right of a central object. Go into Lightroom Develop module>Lens Correction>'Manual' and move the 'Vertical' and 'Horizontal' adjustments. This applies digital image processing to "correct" your picture, similar to what an expensive tilt-shift lens does on-the-camera
Even when you correct your picture elements for "parallel" vertical and horizontal lines, a super wide-angle lens may still exhibit what appears to be a "distorted perspective." That's both the virtue and deficit of shooting with short focal length lenses – It's up to you to properly apply this creatively to your subjects….but that’s a whole other subject! There are some good tips here by Ken Rockwell:
http://www.kenrockwell.com/tech/how-to-use-ultra-wide-lenses.htm

Why don't additional downloaded lens profiles show up in LR5?

Hi everyone! My name is Kai and this is my first post here. Normaly I find an answer to all my questions by reading already existing discussions. But this time I wasn't lucky...
Hopefully this is not a stupid question.
I downloaded lens profiles for the Rokinon 7.5 fisheye and created a folder named "Rokinon" in "Rsources", "LensProfiles", "1.0" (MAC OS) to put them in, but they don't show up in LR5 and I can't use them. What's wrong?
Thanks, Kai.
<moved by mod from downloading,installing,setting up - kglad>

The correct location to place downloaded Lens profiles on a Mac is:
Macintosh HD / Users / [your username] / Library / Application Support / Adobe / CameraRaw / LensProfiles /

How do I create an ACR custom lens profile if camera exposure can't be set to manual?

How do I create an ACR custom lens profile if camera exposure can't be set to manual?
I ask this question for the Nokia 808 PureView 41MP camera. It produces stunning image quality but exposure can only be controlled via EV +/- compensation. I need a lens profile to correct for vignetting to get even skies in panorama (which turn out stunningly otherwise). There is no profile for the Nokia 808 PureView I am aware of and I'd like to produce one.
Is the Adobe profile creator able to correct for varying exposure using EXIF or overlapping parts of the chart or background?
Or would the Adobe profile creator ignore EXIF if I use studio flash to enforce a constant lightning situation, even if shutter speed would vary (aperture is constant and ISO can be set constant, just not the shutter speed)?
Or did Adobe produce a profile internally they can share?
Thanks.

If you read the first post, this is the camera-app of a 41MP Nokia Pureview 808 camera-phone, so maybe someone could write a new camera app but the phone is Symbian OS which is dead, making that unlikely.
http://www.digitaltrends.com/mobile/the-skeptics-guide-to-nokias-808-pureview-five-reasons -41-megapixels-are-not-a-gimmick/
http://www.digitaltrends.com/mobile/the-nokia-lumia-820-and-lumia-920-too-little-too-late/
It would probably be easier for Adobe to rewrite the LPC to allow vignetting to be computed from a single shot of a blank wall without a target in the shot, than to have someone rewrite a camera app that allows manual exposure.
Another idea about how to get the phone to keep a constant exposure would be to experiment with putting darker and lighter objects in the field-of-view away from the target area to make the camera metering adjust things so it’s exposure is the same from one shot to the next. This would take some doing but should work, unless the LPC uses the part of the frame that doesn’t contain the checkboard target in its computations.
You’re basically varying the scene around the target so the camera takes the same exposure of the target each time.

Does the Lens Profile Creator work with Photoshop Elements 8.0..?

Hello,
I am very new to the world of Photoshop, so please forgive if this is an obvious/stupid question...
I am using Photoshop Elements 8.0 and I have a couple of pictures that I need to remove the 'fish eye' lens distortion from around the edges...
The blurb for the Lens Profile Creator says that it is for use in the "Adobe Photoshop® family of products"...
Does this include Photoshop Elements 8.0 or do they really mean it is just for Photoshop CS5, Camera Raw and Photoshop Lightroom...
Any help will be appreciated...
Many Thanks
mc1903uk

PSE does not have the user-interface to turn on lens-corrections, nor does the ACR 6.1 update for PSE contain the lens-profile database installer, so if PSE is the only member of the PS-family that you have installed then effectively you cannot apply lens profiles.
If a computer has the lens-profile database installed and lens-distortion-correction has been enabled in the XMP sidecar for a particular image, both requiring PS-CS5's ACR 6.1-updater or LR3 to be installed and one of those used to enable lens-corrections for the image, then PSE can use ACR 6.1 to apply a lens profile, because the version of the ACR 6.1 plug-in for PS and PSE is the same plug-in.
BTW, removing fish-eye distortion completely, which is what enabling lens-corrections does by default, will leave a rather poor looking image that has been completely rectilinearized but has severe stretching of the pixels at the edges, so only the center is useable. With my 8mm Sigma fisheye, I reduce the Distortion part of the correction down to 44 so the black corners are gone, but there is still some bulging of the image.
If you want to experiment with lens-corrections, you could install the 30-day trial of LR3.

Help with creating a lens profile

I am looking to create a lens profile but have a question about the instructions.
Do I use the same size chart for all the focus distance shots?
It is a wide angle lens with quite a close focusing distance.
If I shot with the same chart at 1x, 2x and 5x the minimum focus distance as instructed, then if I pick a chart that works at 1x (i.e. fills 1/2 to a 1/4 the frame), then it is tiny at 5x, and doesn't fill the frame anywhere near the same as at 1x of course.
Am I meant to use a bigger chart? Or start the 1x with a very small one?
Thanks for any help.

Do you know why this lazy fart-ass is back? Because when he posted his homework last week, some sorry-assed idiot went and did it for him.
http://forum.java.sun.com/thread.jspa?threadID=5244564&messageID=10008358#10008358
He didn't even thank the poster.
It's the same problem over and over again. You feed the bears and it only teaches them to come back for handouts.
My polite suggestion to the original poster: please do your own fucking homework.

Removing Photoshop Elements 9 caused missing lens profiles in Lightroom 3.3

After my trial on Photoshop Elements 9 expired I removed it from my Windows Vista system. The next time I started Lightroom 3.3 I tried to apply a Canon lens profile to some new images and the profile was missing, not only was it not on the list, none of the 862 images taken with this lens had the profile applyed to them anymore. I tried to repair the installation and it failed saying I was missing components. I then tried to upgrade to RC 3.4 & it failed with the same message. I finally thought it might have been caused by the removal of Photoshop Elements so I went to the restore point that it did prior to removal. Now I have the lens profile back that was missing the Canon EF28-135mm profile as well as to the other 862 images. My question is should there be anything else I should look for to see if it is missing or damaged? Thanks - Larry

Larry,
The common part between LR and PSE is the Camera Raw part (ACR). It's settings are contained in 2 different locations:
1) General ACR configuration files:
C:\ProgramData\Adobe\CameraRaw
This directory contains lens and camera profiles installed with LR
2) User related configuration files:
C:\Users\[username]\AppData\Roaming\Adobe\CameraRaw
This directory usually contains:
Downloaded/created lens profiles
ACR defaults (like ACR cache size, any defaults set in LR)
Downloaded/created camera profiles
You might want to check the content of those 2 locations. One other alternative would be to uninstall and re-install LR, which should take care of the factory supplied profiles.
Beat Gossweiler
Switzerland

Metadata and lens profile don't match

Hi,
I have a Fuji X-e1 and the latest update of LR 4.4 running on 10.6.8, 16GB RAM, all OS software up to date.
The problem is my Fuji RAW files don't show the correct lens profile in the Develop module. The only choice available to choose is for Fuji X100 (which I've never owned or shot). The metadata in the Library module is correct for both the lens and camera, and also shows correctly in Bridge.
However, with the same software on a friend's Macbook Pro -- also 10.6.8, LR 4.4, etc. -- the lens profile correctly allows for the X-e1 and 18mm lens auto-correction.
I uninstalled LR on the desktop using an uninstaller called Zap It, downloaded 4.4, reinstalled and still the same 'error'.
Any ideas on 1) why the error and 2) how to correct it?
Thanks!

There are a lot of profiles for Raw-images but much less for JPG images.
Lr will display only those lens profiles that apply for the file format in question. So when you have a JPG image the profiles for Raw images will not be displayed in Lr, and vice versa.
If you don't have the correct lens profile in you list you have to download it.
For this you need the Adobe Lens Profile Downloader.
And for this program you need Adobe Air.
Download both programs from Adobe's website - they are free of charge.
Then install Adobe Air first, and when that is installed, install the Lens Profile Downloader.
Once it is installed just open it, it is self-explanatory and will display all available lens profiles once you have selected your camera and lens makes.

No lens profile for camera.

I have a Canon G16
Bought Lightroom to use with this and RAW photograph processing.
I have the latest ver of Lightroom 5.5   and RAW 8.5
Import detects and accepts "Canon Powershot G16"   so have the latest profiles, but under Lens Correction ... it does not List G16 (does show G15)
Do we (or can we ) request support for the G16    ?

The G16 already has a built-in lens profile that is always on. That is why you cannot find it in the list to select.
Here is what a uncorrected image looks like. Note the barrel distortion near the outside edges:
And here is what the ACR 8.5 plug-in for Photoshop says about the built-in lens profile--something I wish they'd add to Lightroom, too, so as to avoid questions like yours:

Lens profile creator - Best Practises

Forgive me for my ignorance but I am completely new to Lens Profile Creator (and a novice photographer to boot ) and I must confess that I have not read the documentation in great depth, but I am a little confused.
I am a Lightroom 3 user and no lens profiles are availble in LR3 for two of my lenses. So, I took the plunge and have attempted to create the required profiles. The lenses in question are the AF-S Nikkor 16-85mm 1:3.5-5.6G ED and the Sigma 105mm 1:2.8D DG Macro. My camera is a Nikon D300.
The confusion is that documentation is not clear on how many combinations of aperture and focal length (for zoom lenses) is required (or recommended) in a single lens profile. For example, for my Sigma 105 should I shoot nine images at each available aperture (from f2.8 through f32 (i.e. a minimum of 72 images!) or is 9 images at a single aperture enough? If a single aperture is sufficient what should that aperture be?
Whilst I find the procedures to capture the required images straight forward ( if a little tedious) if I have to shoot nine images at each aperture for a zoom lens at minimum, maximum and the mid point of the zoom range, then the number of required images becomes enormous

I have developed five profiles so far and I can help you somewhat. You may also wish to hear from Adobe. The hardest profile that I developed was for my point and shoot, the Nikon Coolpix P6000, which shoots raw images, of .NRW Type, and my profile was for raw images, as are all of the profiles that I have done. I think the lens resolution is very low for that Coolpix camera compared to my other excellent fast Nikons, and the coolpix caused me much problems in my profiles, but I found ways around some of the issues, and had to use less images in some of my sets and I had to use the advanced tab to use less parameters in some cases, and that helped.
You want to vary at least the aperture in your sets. Sets are considered to be images with at least one thing common - such as aperture. So, you could have eight sets of nine images = 72 images, as you said, for your Sigma, if you use each aperture. However, you may also want to vary the distance from the target. Thus if you used two distances for each aperture, 72 x 2 = 144 images.
For your zoom; yes, I did shoot sets at each zoom focal length setting when I recently profiled my Nikon 17-35mm f2.8 lens. I had twenty sets of images with nine images in each set. That equals 180 images for that one lens. And I did not shoot different distances for each focal length. If I had done that, I could have had 360 images of course. I shot images for that lens at f2.8, f8, f11, and f22, and at zoom focal length settings for each aperture, of 17mm, 20mm, 24mm, 28mm, and 35mm.
You can choose to use the same chart or different charts; I used 3 charts for my 17-35 images, size 29x41, 36 points, and I also used chart with huge squares, size 9x13, 108 points, and a third chart of size 27x45, 54 points. *Be sure* to measure the needed square size for each set and change the chart size per what you used in that set and the square size, entered on the right side.
For my other profiles that I have done, I have used a minimum of twelve sets of nine images each, up to twenty sets of nine images each. I always shot mine at the minimum aperture, and at f8, and f11(per Eric's recommendation to use f11), and also at either f16 or f22, whichever I felt I used the most for that lens(nine sets each). I also used the minimum aperture for a given zoom fully zoomed out(my 24-120 at 120 yields f5.6) and zoomed in(the 24-120 at 24mm is at f3.5). And I used at least four focal lengths for my zooms(and I used different distances also for the point and shoot P6000 profile).
Hope this helps you.
Debra

Camera RAW v7.3:Lens Profile for Nikkor DX 17-55mm

Hi,
LR v4.3 correctly reads from NEF the lens Metadata like: Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED. This lens profile is properly assigned to the corresponding NEF file.
Still in LR when converting the same image (via export dialog) to TIF, again this lens profile is used and reflected in the TIF-output (including metadata). So far so good.
When converting the same image in Nikon Capture NX2 of course the lens profile (as set in LR) is NOT reflected in the TIF-output. This (should) can be taken care of by enabling a lens profile correction in LR (after import TIF into LR).
The thing is that LR suggests to apply a profile for lens: Nikon AF-S DX Zoom-Nikkor 14-24mm f/2.8G IF-ED. This profile is probably not the same as for the 17-55mm lens.
Unfortunately a profile for the Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED is not listed in the selection options.
Question is:
How can I best obtain a proper profile for the lens: Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED ?
I find it strange that Camera RAW v7.3 has the proper lens profile for the NEF but suggest another profile for the TIF version of the same file. Apparently the profile is available for NEF but not for the TIF.
How comes?
Would appreciate to receive some reasoning and possible solutions.
Thanks, Hans.

My findings:
The lens profile in ACR is for RAW files.
For converted files (TIF, JPG, etc.) a different lens profile applies.
Reason(s): The metadata of the TIF-file is not specific enough about lens profiles. (Lens profiles would need to be embedded - they are not).
For example: Has the TIF-file been converted from RAW using a profile or not? If so, the specific name of the lens profile and it's physical location would be needed.
Meanwhile it makes sense for me that this part is left to the user.
The Adobe LensProfile Creator allows to produce a suitable profile for specific needs.
For many popular lenses there is a non-RAW lensprofile (for TIF, JPG etc.) available that might be applied by the user.
Thanks 'Geoff the kiwi' you lead me onto the right path to find the answers to my questions.

Can I use a Canon Lens profile if there isn't a Sony profile ?

I just bought the Tamron SP 90 2.8 DI MACRO USD and LR lens profiles only lists this lens for Canon (F004E) and Nikon (F004N). There is no profile for Sony (F004S) ! Any drawback if I use F004E or N ? Or better use a the profile of the older Model of that lens where there is a Sony profile ?
Thanks for answers !

kleinjn wrote:
One could ask why are there versions of the same profile for Nikon, Canon, Sony and may be others ?
Good question.
My guesses:
* The lens description is not guaranteed to be unique across all camera models, so having camera model in the mix assures the correct lens is unambiguously chosen.
* Adobe wants to reserve the right to do things differently based on camera model, for the reasons hinted at in my previous post (e.g. data may be registered differently in the lens depending on camera model).
It's kinda like camera calibration profiles - there is a separate Adobe Standard profile for every camera, and in many cases, it's identical to that for other cameras, but in some cases, it's different.
PS - I think Eric Chan is the only person likely to give you a definitive answer here, but maybe some other savvy user knows..
Cheers,
Rob

Lens profile question

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