Ricardo Sandoval

Not yet but you are half way there. Do not edit the xml file. The information you are trying to include is actually a report by Exiftool of a corrected 85mm file
Yes. 
On Windows I have the Exiftool program in a folder, there is no installation prrocedure. I then set a path to that folder in the environmental variables. Then I would open the folder containing the images, open a Powershell window and do
exiftool -lenstype2#=32823 -lenstype3#=32823 *.ARW
which will process every file in that folder. I am sorry but I have no idea how to do that on a Mac but this
https://www.exiftool.org/install.html
may help. Good luck

You can persuade Photo to apply an existing, similar lens correction instead
Download the relevant fie from https://github.com/lensfun/lensfun/blob/master/data/db/mil-samyang.xml
Modify the model descriptions
<model>Samyang AF 14mm F2.8</model> - was Samyang 14mm f/2.8 AE ED AS IF UMC
<model>SAMYANG AF 85mm F1.4</model> - was Samyang 85mm f/1.4 IF UMC Aspherical
The attached xml file contains these changes so load it into Photo's Lens Profiles Folder. Preferences\General\click button
Restart Photo
That's enough for the 14mm lens but the 85 needs a bit more help as the exif data is so mangled.  Exiftool to the rescue available here https://exiftool.org/
exiftool -lens* 85.ARW
displays:
Lens Type                       : E-Mount, T-Mount, Other Lens or no lens
Lens Spec                       : E 85mm F1.4
Lens Zoom Position              : 0%
Lens Mount 2                    : E-mount
Lens Type 3                     : Samyang AF 35mm F1.4
Lens E-mount Version            : 1.70
Lens Firmware Version           : Ver.03.002
Lens Mount                      : E-mount
Lens Format                     : Full-frame
Lens Type 2                     : Samyang AF 35mm F1.4
Lens Spec Features              : E
Lens Info                       : 85mm f/1.4
Lens Model                      : SAMYANG AF 85mm F1.4
Lens ID                         : Samyang AF 35mm F1.4
To fix this do
exiftool -lenstype2#=32823 -lenstype3#=32823 85.ARW
and you'll see:
Lens Type                       : E-Mount, T-Mount, Other Lens or no lens
Lens Spec                       : E 85mm F1.4
Lens Zoom Position              : 0%
Lens Mount 2                    : E-mount
Lens Type 3                     : Sony FE 85mm F1.4 GM or Samyang AF 85mm F1.4
Lens E-mount Version            : 1.70
Lens Firmware Version           : Ver.03.002
Lens Mount                      : E-mount
Lens Format                     : Full-frame
Lens Type 2                     : Sony FE 85mm F1.4 GM or Samyang AF 85mm F1.4
Lens Spec Features              : E
Lens Info                       : 85mm f/1.4
Lens Model                      : SAMYANG AF 85mm F1.4
Lens ID                         : Samyang AF 85mm F1.4
32823 is the lens number from https://exiftool.org/TagNames/Sony.html


Samyang1485.xml

You're welcome. Yes, it will be in the 1.9 retail release. You can install the beta alongside your retail release to experiment with it now.

For Samyang 14mm f2_8.ARW the file EXIF data that seems relevant is
 
Lens Type : E-Mount, T-Mount, Other Lens or no lens Lens Spec : E 14mm F2. Lens Mount : E-mount Lens Type 3 : Samyang AF 14mm F2.8 or Samyang AF 35mm F2.8 Lens Type 2 : Samyang AF 14mm F2.8 or Samyang AF 35mm F2.8 Lens ID : Samyang AF 35mm F2.8 Make : SONY Camera Model Name : ILCE-7M3 Photo identifies it by the Lens ID as SAMYANG AF 35MM F2.8.
The Lensfun database has two entries that are similar, but that do not match:
 
<model>Samyang 14mm f/2.8 AE ED AS IF UMC</model> One entry is for a cropfactor of 1, the other for 1.523. But note that that AF is missing.
--------
For Samyang 85mm f1_4.ARW:
 
Lens Type : E-Mount, T-Mount, Other Lens or no lens Lens Spec : E 85mm F1.4 Lens Mount : E-mount Lens Type 3 : Samyang AF 35mm F1.4 Lens Type 2 : Samyang AF 35mm F1.4 Lens ID : Samyang AF 35mm F1.4 Make : SONY Camera Model Name : ILCE-7M3 The strange thing about this one is that you have said it's an 85mm lens, and the Lens Spec field says 85mm, but the camera/lens is reporting the lens type and ID as a 35mm lens. The only entry in the lensfun database for a similar lens is this one:
 
<model>Samyang 35mm f/1.4 AS UMC</model> <!-- This model is really only available for Nikon. For the other brands, the 35/1.4 may have different characteristics. --> Note that the model name does not match (which means that Photo won't find it) but also that this lens is only for a Nikon camera.
 
Result: Basically, both lenses are unknown to Lensfun, and you need to either wait for them to calibrate them and add them to their database, or you need to calibrate them yourself and provide the information to Lensfun for inclusion in their database. The Lensfun website has information about how to ask them to do the calibration, or how to calibrate them yourself.
 

I have been reading Dave Straker’s post about Saturation Masks, and the variety of methods he and others have used to construct them. In looking into this further, I stumbled across a web page written by Tony Kuyper, and he describes a really simple way of creating a Saturation Mask using a Selective Color adjustment layer. A link to his web page is included below:
http://goodlight.us/writing/saturationmasks/satmask-1.html
I have attached a Macros Category (import this from the “hamburger” menu on the Library panel) that includes 6 different macros.
Important Note - Because of a bug in the Selective Color adjustment layer, these macros will not work in version 1.6 of Affinity Photo. However, the apparent bug has been squashed in version 1.7, and the macros give the proper results. At this point, use the macros ONLY in the version 1.7 beta and, presumably, in any version which follows it.
Saturation Mask - Greyscale
This macro creates a greyscale version of a saturation mask, based on a “merge visible” pixel layer that takes all of the visible layers into account.
Vibrance Mask - Greyscale
This macro creates a greyscale version of a Vibrance Mask. A vibrance mask is the inverse of a saturation mask, and favors areas of relatively low saturation. Vibrance Masks can be used to apply adjustments, etc. to poorly saturated pixels, while masking that adjustment from highly saturated pixels.
Saturation Mask - Create Mask
This macro creates a Mask layer out of the greyscale version of the mask. The mask is placed at the top of the layer stack, and can be used as needed.
Vibrance Mask - Create Mask
Similar to the above, this macro creates a Mask layer out of the Vibrance Mask greyscale layer.
Fix OVER-Saturated Image
This macro puts a 50% grey fill layer at the top of the layer stack, and sets the Blend Mode to Saturation. Without anything further, this would have the effect of desaturating all of the colors in an image. However, the macro attaches a Saturation Mask to the fill layer, which desaturates the colors relative to their existing saturation level. (More highly saturated pixels are affected more strongly.) Finally, the macro asks the user “How much desaturation?” should be applied. This sets the opacity of the fill layer, and can change the amount of DE-saturation applied.
Fix UNDER-Saturated Image
This macro puts an HSL adjustment layer at the top of the layer stack, and attaches a Vibrance Mask to the adjustment. The macro asks the user “How much saturation?” and this affects the Saturation slider inside the HSL adjustment. The vibrance mask causes the HSL adjustment to be applied more strongly to pixels with low saturation, and minimizes its effect on highly saturated pixels.
Saturation Masks.afmacros.zip

You can use the flood select tool to intersect (select from inside another active selection) or select from all layers (draw another shape to limit your area):

2020-11-05 12-36-50.mp4

Select > Colour Range > Select Blues.
You can also try Select > Select Sampled Colour if you colour pick the blue sky first—though I find this works better with flat colours as opposed to the dozens of shades of blue in that example.

Hi i 
Hi reading your answer i realice that last year I upgrade my HDD to an SDD drive and the apple support made me a backup partition .... today i uninstalled that partition because i have allready backup in an external disk .... and all the problems with the old version dissapear.
Thx all for your great help.
Regards

i have double installation of all software because i upgraded the HDD to an SDD and in the service did a backup
thx for your constant help 

Hi i 
Hi reading your answer i realice that last year I upgrade my HDD to an SDD drive and the apple support made me a backup partition .... today i uninstalled that partition because i have allready backup in an external disk .... and all the problems with the old version dissapear.
Thx all for your great help.
Regards