Modify or substitute a lens profile?

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7 comments

  • pgoelz
    Just a follow up. I opened a case and the answer was sadly that it is not possible to reassign or edit a lens profile. BUMMER!!!!

    Paul
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  • Brian Grant
    I have a similar issue - there is a listing for the Sigma 24-105 Art with a Canon mount but I use Nikon. I ended up creating a User Style that applies the Canon profile. When I import photos taken with that lens I apply the preset to all the applicable photos at once. Not terribly elegant but it does the job.
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  • pgoelz
    Yeah, something like that was suggested by Capture One support. Trouble is that if I have a shoot and use multiple lenses I can't just apply my custom profile to the whole import. I have to do it individually.

    Paul
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  • SFA
    Paul,

    Are you using the the Purple Fringing tool to make the adjustments?

    I have not been able to identify the Mamiya lens you are referring to (I don't see any 100mm lenses listed for Mamiya on my system) but as an experiment I tried most of the Mamiya proifiles that looked like possible fits and none of them applied an adjustment for the Purple Fringing tool.

    I cannot recall seeing the PF tools values set automatically as part of any lens correction I have ever experimented with - but that's not to say none of them do.

    However the PF tool does a facility to save a default adjustment for specific lenses so if, in general, the PF tool can be used with your lens to correct a regular PF problem have you tried using the saved adjustment as a default to correct the Sony lens ?

    I could not be sure form your original description whether that is indeed what you had tried.

    Grant
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  • pgoelz
    Are you using the the Purple Fringing tool to make the adjustments?


    Yes and no. Using the SAL100M28 profile, the PF tool has minimal effect, even with the slider all the way to the right. Using the lens profile "Mamiya Sekor 150mm AF 150mm IF D (2X tele) f/5.6" the PF tool has much more effect and its default setting is acceptable.

    I cannot recall seeing the PF tools values set automatically as part of any lens correction I have ever experimented with - but that's not to say none of them do.


    Hmmm.... I thought the PF tool defaulted to something above zero but I looked again and apparently it does not. I'm on my laptop at present, and C is one rev older than current. I'll have a look on my desktop with the latest version of C1.

    EDIT: On C1 version 12.1.4.21, the PF tool defaults to a value of 63. But it still cannot be set as a preset for a specific lens.

    However the PF tool does a facility to save a default adjustment for specific lenses so if, in general, the PF tool can be used with your lens to correct a regular PF problem have you tried using the saved adjustment as a default to correct the Sony lens ?


    I'll look into that. The PF tool does have some effect, so if I can save it at its maximum setting for the SAL100M28, that might suffice. PF is not THAT much of an issue with this lens, but it does show on bright contrasty areas.

    Ah.... looked into it. Looks like I can save the PF value as a default for the camera but not for a particular lens?

    Thanks!
    Paul
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  • Brian Grant
    [quote="NNN636818585512125982" wrote:
    Yeah, something like that was suggested by Capture One support. Trouble is that if I have a shoot and use multiple lenses I can't just apply my custom profile to the whole import. I have to do it individually.

    Paul


    Can't you just do a momentary sort by lens type and then apply a User Style to all of the lenses that meet your criteria? I realize it's a bit cumbersome but it does work and you can make a custom User Style with whatever purple fringe settings (and any other settings that would be lens dependent) and use that rather than the Mamiya lens.
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  • pgoelz
    Yes, I could do that. But yes, it is cumbersome.

    In the mean time I have discovered some things about the Mamiya profile at the edges of the image that I don't like so I've cooled off a bit on trying to substitute it 😉

    It is interesting that with the possible exception of diffraction correction, I don't see anything that changes when you apply the SAL100M28 profile. Perhaps that is understandable based on reviews calling its predecessor (the Minolta) a "perfect" lens 😉 It is very good indeed, but there is some color in the bokeh that the Mamiya profile seems to help with.

    Paul
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