Lightroom Lens Profile Corrections

[hirohhhh]

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What do you use for Profile Corrections in Lightroom for your SL/SL2? Do you leave it unchecked, use a Default profile, or something else? Does it matter for SL lenses? I don't see any difference anyway, as I can see with my Fuji x100f.

[SrMi]

9 hours ago, hirohhhh said:

What do you use for Profile Corrections in Lightroom for your SL/SL2? Do you leave it unchecked, use a Default profile, or something else? Does it matter for SL lenses? I don't see any difference anyway, as I can see with my Fuji x100f.

For M-lenses I may enable the Profile Correction manually. There is no choice for L-mount lenses: either the built-in profile correction is applied or no correction is needed.

[rjsphd]

On 12/11/2020 at 11:26 AM, SrMi said:

For M-lenses I may enable the Profile Correction manually. There is no choice for L-mount lenses: either the built-in profile correction is applied or no correction is needed.

I would love to believe my SL lenses don't need correcting, but I am skeptical.  My bet is Adobe hasn't gotten around to it and doesn't feel the need/demand.

[SrMi]

43 minutes ago, rjsphd said:

I would love to believe my SL lenses don't need correcting, but I am skeptical.  My bet is Adobe hasn't gotten around to it and doesn't feel the need/demand.

The lens correction data for L-mount lenses are embedded in the raw files. Therefore, it is Leica who decides whether a lens needs lens correction, not Adobe.

Edited December 16, 2020 by SrMi

[Pixeleater]

On 12/11/2020 at 8:26 AM, SrMi said:

For M-lenses I may enable the Profile Correction manually. There is no choice for L-mount lenses: either the built-in profile correction is applied or no correction is needed.

Don't the 6 coded M lenses include the profile info that is applied in lightroom?

[SrMi]

3 minutes ago, Pixeleater said:

Don't the 6 coded M lenses include the profile info that is applied in lightroom?

Looking at my DNGs created by SL2 with M-lenses, no built-in profile is stored in the raw file. Instead, one can specify whether the lens profile (provided by Adobe) should be applied or not.

[Pixeleater]

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11 minutes ago, SrMi said:

Looking at my DNGs created by SL2 with M-lenses, no built-in profile is stored in the raw file. Instead, one can specify whether the lens profile (provided by Adobe) should be applied or not.

Interesting, and thank you for the clarification.

[Photoworks]

20 hours ago, Pixeleater said:

Interesting, and thank you for the clarification.

when you use the 6Bit Leica adapter and lens the correction of vignetting and color uniformity is already applied in the raw. 
In Lightroom you can do additional correction base on the lens. The camera does not actually knows if you have shot it at 1.4 or f4. the vignetting correction should be different.

You can test this easily your self. just cover the 6 bit coding on the lens and see the results .

I see a big difference in the 35mm FLE at 1.4

[SrMi]

2 hours ago, Photoworks said:

when you use the 6Bit Leica adapter and lens the correction of vignetting and color uniformity is already applied in the raw. 
In Lightroom you can do additional correction base on the lens. The camera does not actually knows if you have shot it at 1.4 or f4. the vignetting correction should be different.

You can test this easily your self. just cover the 6 bit coding on the lens and see the results .

I see a big difference in the 35mm FLE at 1.4

Yes, similar as with M series, certain corrections are baked into the raw files. Distortion correction and additional vignetting is done optionally with Adobe's profile (except for L-mount lenses)

[Photoworks]

Yeah,  L lenses have it back in, You should see the 24-90mm at 24mm. It is a total pillow! ;-)

[SrMi]

20 minutes ago, Photoworks said:

Yeah,  L lenses have it back in, You should see the 24-90mm at 24mm. It is a total pillow! 😉

I assume you mean baked-in? The 24-90 does not have the distortion correction baked into the raw. Instead, it has a built-in profile. Adobe software cannot turn off the built-in profile (SDC, vignetting), but other tools can.