SL with Lightroom profile corrections(M lenses with original adapter)

[orc999]

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Hello

 

I just got my original M adapter, to replace my Kippon.

 

Are lens profiles automatically applied like in the Q or with SL lenses?

At least with the Q, Lightroom will show "profile applied". There is no such comment in LR with the M lenses.

 

If I do switch on the profile corrections, a distortion correction is applied.

With the Leica M adapter the lens is identified and applied.

 

With the Kippon adapter I can select the lens profile manually in Lightroom - however no corrections are applied when doing this.

I also had the lens selected manualy on the SL. fyi Kippon will not read metadata.

 

I'm asking this to avoid double correction mainly.

 

 

best regards

 

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[meerec]

If you want the correction ON, in Lightroom you need to go to the Lens Corrections section // Profile // Enable profile corrections checkbox, choose Leica M, and finally choose the lens from the drop down list.

 

Only the native SL lenses get the corrections applied automatically, which is then acknowledged with the message "Built-in Lens Profile applied".

[Guest]

Thank you meerec, I wasn't aware that I had to apply that when using the Adapter-M and M lenses.

[meerec]

Thank you meerec, I wasn't aware that I had to apply that when using the Adapter-M and M lenses.

Another useful trick is, once you've applied the profile manually as I described, you can try to level the image and correct the perspective by going to Lens Corrections >> Basic tab, and clicking the Auto button. It works for me most of the time, I may tweak it manually after this in Crop & Straighten section if required.

[Guest]

Another useful trick is, once you've applied the profile manually as I described, you can try to level the image and correct the perspective by going to Lens Corrections >> Basic tab, and clicking the Auto button. It works for me most of the time, I may tweak it manually after this in Crop & Straighten section if required.

 

This one I did know about and find useful.

[thighslapper]

If you want the correction ON, in Lightroom you need to go to the Lens Corrections section // Profile // Enable profile corrections checkbox, choose Leica M, and finally choose the lens from the drop down list.

 

Only the native SL lenses get the corrections applied automatically, which is then acknowledged with the message "Built-in Lens Profile applied".

 

...... are you sure about the last line .....??

 

there was another thread about this ...... when I use my WATE LR flags up that corrections are automatically applied ........ from data in the DNG presumably .......

[orc999]

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Thanks for your answers. 

 

I assume they are not corrections applied before getting to LR.

However Digloyd complains about the profile being automatically baked into the dng.

 

Surprising to me is: when shot with the Kippon, applying the profile won't affect the image, unlike with the original adapter.

 

Most of the pictures seem to be well corrected with the profile applied. I came across one, where it could be overcorrected.

 

I will try to post it later

[meerec]

...... are you sure about the last line .....??

 

there was another thread about this ...... when I use my WATE LR flags up that corrections are automatically applied ........ from data in the DNG presumably .......

I am sure of what I have seen (or rather not seen) with a limited number of M mount lenses (10, 15, 24, 35, 50, 90mm)

And I'm not an Adobe software developer on the LR project :-)

If you've seen other cases please educate the forum ...

[deep_blue]

At least with my 50mm lux asph a profile is applied automatically during import. This correction can't be switched of or deactivated at all...

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[Chaemono]

If you want the correction ON, in Lightroom you need to go to the Lens Corrections section // Profile // Enable profile corrections checkbox, choose Leica M, and finally choose the lens from the drop down list.

Only the native SL lenses get the corrections applied automatically, which is then acknowledged with the message "Built-in Lens Profile applied".

Unfortunately, this is not correct. I used to think the same thing. If you enable lens corrections in LR you will be correcting an already corrected image. Lens corrections for all M lenses I tried (28 Lux, 35 Cron, Noctilux, 50 APO Cron) are automatically applied in LR as the SL embeds them now (latest firmware) in the DNG files. Simply use a tool to remove the lens correction opcodes from the DNG files (after you make duplicates) and open both sets in LR, the DNG files straight out of the SL and the files with the opcodes removed. You will see that LR shows the corrections in the former automatically even without the box in the lens correction section checked. By the way, the 90 Cron is not corrected for any distortions at all as far as I could tell as it probably doesn't need to be.

[meerec]

Unfortunately, this is not correct. I used to think the same thing. If you enable lens corrections in LR you will be correcting an already corrected image. Lens corrections for all M lenses I tried (28 Lux, 35 Cron, Noctilux, 50 APO Cron) are automatically applied in LR as the SL embeds them now (latest firmware) in the DNG files. Simply use a tool to remove the lens correction opcodes from the DNG files (after you make duplicates) and open both sets in LR, the DNG files straight out of the SL and the files with the opcodes removed. You will see that LR shows the corrections in the former automatically even without the box in the lens correction section checked. By the way, the 90 Cron is not corrected for any distortions at all as far as I could tell as it probably doesn't need to be.

OK so it depends on the lens. I have none of your lenses.

Then I need to be more specific. In my cases, I must apply lens correcrions manually for:

Voigtlander 10

Voigtlander 15

Elmar 24

Summarit 35

Summicron 50

Summarit 90

[Guest roey]

Yes, it is lens-dependent. If a given DNG has an embedded lens profile LR will show a small info icon (see bottom of the screenshot). If you click on it you will see a dialog detailing what kind of corrections have been applied.

[meerec]

Yes, it is lens-dependent. If a given DNG has an embedded lens profile LR will show a small info icon (see bottom of the screenshot). If you click on it you will see a dialog detailing what kind of corrections have been applied.

Makes me wonder ... if only certain lenses' DNG seems to automatically make LR apply the profiles, who's 'at fault' and to blame – is it Leica to not include this info in DNG for some lenses, like the ones I use, or is it Adobe that do not process the information embedded in the DNG?

 

Before you come to the conclusion, consider the fact that two of my M mount lenses I mentioned, are made by Voigtländer.

If so, then we would have to blame both Leica, and Voigtländer. I suspect, it's Adobe not processing the existing information automatically.

[ramarren]

Makes me wonder ... if only certain lenses' DNG seems to automatically make LR apply the profiles, who's 'at fault' and to blame – is it Leica to not include this info in DNG for some lenses, like the ones I use, or is it Adobe that do not process the information embedded in the DNG?

 

Before you come to the conclusion, consider the fact that two of my M mount lenses I mentioned, are made by Voigtländer.

If so, then we would have to blame both Leica, and Voigtländer. I suspect, it's Adobe not processing the existing information automatically.

 

 

I don't know that I have to "blame" anyone. I just need to understand what specifically the behavior is and act accordingly. 

 

It seems that in some cases, LR processing sees no profile in the DNG file. In some of those cases, LR can 'find' a matching profile for me. 

In other cases, LR sees a profile in the DNG file and applies it automatically. 

 

What this says is that the first thing I should do when processing my exposures is check the Lens Correction panel and see what Lightroom's behavior is for that lens.

 

• If LR cannot pick a profile for me, I can find which profile (or none) produce a better result, and then move on and render my photo. 
• If LR can find and perform profile corrections automatically, I'm done with lens corrections (other than manual tweaks) and move on to render my photo. 

 

Simple. 

[orc999]

ok indeed it depends on the lens and it's not consistent. 

 

35mm summilux asph lens profile embedded

75mm apo summicron no lens profile ebedded

 

Both let me choose a lens profile to be applied(-additionally) and the applied profile does make a big difference.

If you switch lenses during a job you will have to go through and check the profile box only on the ones that are not already embedded.

 

That's quite a headache if you shoot something you need to deliver large amount of photos in a reasonable amount of time. Like a wedding or so.

[thighslapper]

I suspect the 75 apo doesn't have one because Leica think it is unnecessary ...... 

 

I've personally never had cause to apply any correction to this lens .....

[ramarren]

ok indeed it depends on the lens and it's not consistent. 

 

35mm summilux asph lens profile embedded

75mm apo summicron no lens profile ebedded

 

Both let me choose a lens profile to be applied(-additionally) and the applied profile does make a big difference.

If you switch lenses during a job you will have to go through and check the profile box only on the ones that are not already embedded.

 

That's quite a headache if you shoot something you need to deliver large amount of photos in a reasonable amount of time. Like a wedding or so.

In fact, the vast majority of the time, I forget to even look: the quality of the photos just as LR renders them as default is just fine such that I don't even think to look at lens corrections. Certainly this is true for most people pictures ... It's only when I'm doing tabletop or other more technical subject matter that I find lens corrections to be of great importance.

 

Of course, if you use the filters in LR and you've used the in-camera profile assignment to embed the EXIF data, it's a simple matter of picking all the images from a given lens and applying the profile en masse. You can do hundreds of photos in just a few seconds that way.