ChrisMak
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 p.4 #10 · Cobalt Image Spectre Profiles | |
ruthenium wrote:
I looked again at the three renderings, now from a Windows laptop, on an external sRGB monitor, in Opera and Edge. I see no difference between Opera and Edge.
More generally, what I see looks different from my first impression when I looked at the photo on the wide-gamut BenQ with a Mac. One immediate difference is that I see less (very little actually) green in the skin tones - this surprised me. I like less Rendering #1 (out of camera jpg) as it now looks as (a) suffering from a bit too much magenta in WB and (b) the skin looks a bit like this girl was exposed to sun for too long without using a sunscreen.
Like you, now rendering #3 is my favorite (except the color of the shirt that is still bothering me). Rendering #2 looks a bit lifeless, flat, as if a flat profile has been used (that itself is not a problem - there is nothing wrong in starting from a flat profile when processing a raw file).
As a result, I am afraid that the viewing experience can be different on an sRGB monitor vs. a wide gamut photography monitor.
I still have mixed feelings about the Cobalt Spectre profile. First, it seems, the Spectre is mostly targeted toward Adobe LR users. I cannot comment on the quality of LR color profiles. My understanding of the message from Cobalt is that LR profiles are neither accurate nor good, even with the right WB. If this is true, and if I had been a LR user, I would have investigated the available raw converters, to find a better alternative. In my experience with Capture One, I consistently like the default C1 profiles better than the Cobalt Spectre for my GFX100S II. I am not claiming that C1 profiles are more "accurate", by the way - I simply like the overall colors better (especially in the blue)
I wonder if Fred and @jojib@ could make the raw files available for me to process in Capture One.
I don't expect this to happen, to be honest, but I think this is an important question on how the default profiles compare between LR and C1.
The question, to me, remains: is Spectre mostly useful for LR users, or is it a kind of universal highly accurate color profile?...Show more →
I have used Capture One for many years, but have switched to Adobe camera raw because of the "prostandard" color profiles for the Sony cameras, that in varying degrees horribly push the blue channel, leading to wild clipping that is very hard to combat.
The A1 is amongst the worst, the ARV finally corrects this, but when you have dedicated individual color profiles that are not based on a shared standard rendering platform, you are forever stuck with the deficiencies in these profiles.
Just to escape the tedious blue channel clipping, I routinely used the A7RV profile for my A1, but it is not really accurate for the A1, colors in darker shadowy areas produced prominent casts in prints.
Adobe is less risky here, because colors are overall more standard and predictable. That was the main reason for swtiching away from CO1, despite greatly favoring the CO1 interface.
If these cobalt spectre profiles " fix" the wild inconsistencies that the CO1 profiles always seem to suffer from, like e.g. a reddish color cast for the Sony A7RIII generic profile, or the heavy blue channel clipping of the Sony A1 and A7RIII prostandard profiles, then that would be great. If it evens out the rendering between Adobe and Capture One on top of that, then they did a very good job.
Just my 2 cents
Edited on May 21, 2026 at 03:24 PM · View previous versions
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