I use a Samyang 14mm manual lens on a Canon R5 for ultra wide shots. I downloaded DXO optics module for Samyang 14mm. Since the lens is manual, there is no lens name in the EXIF data for PL to identify the lens. Is there no way to apply the optics module to my RAWs ? (If not, why not?)
Which Samyang 14 mm lens do you have? They apparently make several.
I searched the PhotoLab Camera/Lens Support Database. The only manual focus Samyang 14mm f/2.8 lens supported by PhotoLab for the Canon R5 is the Samyang 14mm f/2.8 ED AS IF UMC AE lens which contains an AE chip with contacts. The chip enables the lens to communicate with your camera and transfer EXIF data to the images.
If your lens is not this model and has no contacts then it is not supported by PhotoLab. You probably downloaded the profile for the supported lens manually. If your lens was supported PhotoLab normally will automatically recognize it and offer to download the profile for you.
PhotoLab does not provide profiles for lenses that cannot communicate with the camera body. There isn’t any way for a profile to identify a lens without the availability of EXIF data in the image files.
Sorry to disappoint you.
Mark
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Nevertheless, manual module selection is a long standing feature request. But again, implementation does not seem to be anytime soon - or later.
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I would like to know how it could be accomplished. For a profile to work it would have to be able to uniquely identify the manufacturer and lens model as well as as the focal length, aperture, and any other data normally passed by the lens to the camera body. While I suppose all that data could be entered manually by the user, it would also require the shooter to maintain accurate manual records of all the lens parameters for every shot so that they could be entered accurately for every image.
Additionally, while many current manual focus lens models are available in a number of manufacturer specific mounts, many others, especially older lenses, are mounted to various camera systems via 3rd party adapters, further compounding the issues.
I can’t conceive of a way it could be automated without the availability of lens EXIF data being passed to the camera body. I don’t believe DxO would go to the trouble of creating profiles for manual lenses with no contacts because it is unlikely to generate enough growth to make the investment in time worthwhile.
Mark
Why not? … and why does it have to be automated?
Isn’t it just to open the list and let us pick a lens profile manually like we can in the cases Photolab can’t figure out which one to pick by itself? That has happened me several times.
We also can compare with the camera profiles. When my Sony A7IV was new I had to wait 6 months before DXO released a profile that made it possible to open the ARW -files from that camera.
In the meantime I converted my A7IV-files by changing the modelcode in them to the one for A7III instead. You see the strange thing is with camera profiles is that as soon as you “get in” you can easily choose any of Photolabs present profiles.
In this case with Samyang lenses it is a no brainer to since they first releases simple manual lenses and later put AF in the same optics solution, So a person with a certain manual lens can in certain cases at least pick the never AF-profile if the interface would be open. For example there is a manual version of their 85mm/1.4 lens and an AF one. What is the problem opening that profile-interface??
It would just have to be to select the pictures taken with a certain manual lens and apply another suitable one.
From experiences with using A7III profiles instead of A7IV I couldn’t even tell those “starting points” a part despite I could se that the metadata parameters differed. I’m sure lenses can be nore tricky but let the user take that decision and not Photolab. Since “the sharpening” in Lens Correction is so much better than the old Unsharp Mask.it is a high price not to be able to use that tool.
I’m backing Platypys to 100% in this case !
Like @Stenis , I’d prefer manual approximation to false automation… As of today, PhotoLab can recognise lines for perspective corrections. Maybe DxO could extend such capability to recognize lines, even if they are bent due to lens design compromise. Not all distortions are straightforward to correct though. Moustache distortion needs a more complex remedy than simple barrel or pincushion distortion, but this could be taken from the module.
The sliders for focal length and focusing distance already exist and the user has to decide if correction is okay or not. Based on some AI, this evaluation could be made easier.
All it takes is modules with a part concerning lens property and another part concerning lens compromise remedy.
I did not say it couldn’t be useful or that I against doing it. My point was that It is very unlikely to ever happen. You’ve been here forever and I am sure you know that the odds of DxO doing this is pretty low.
Mark