I'm primarily trying out Kodachromes and Kodak Portra 400. I'm comparing it to my Fuji XT-5's Portra 400 and the color values seem very off on the Sony in regards to A7-M1. If I go to A7-G1 it matches correctly, but if I stick to A7-M1 is way too Magenta which makes sense where it's skewing on the color grid. As I'm using the Sony A1 I figured it would be a similar color profile to the other newer cameras.
Sony A1 Kodak Portra 4300K A7G1 (still a little strong on the green)
Sony A1 Kodak Portra 4300K A7M1
Fuji XT5 Kodak Portra (different aperture but to show the difference in color there)
Hei, sorry for late reply, I just came back from my holiday.
First of all, please note I am not using Fujifilm simulations as a point of reference, but instead I research and use real film samples. So Fujifilm recipes might be very different from Sony film simulations.
Film is volatile and results will vary depending on multiple factors like how the film was preserved, how you develop/scan it, and so on. When I create these film simulations, I try to collect and compare as many film references as possible, to check and compare what kind of colors are people getting in various conditions around the globe.
These comparisons help me understand the different characteristics of a particular film stock and what is the most popular look/colors you will get when using it. But still, it's quite tricky because people around the globe soometimes get very different results using the same film stock.
It's true that Kodak Portra 400 sometimes comes out with a yellow-green cast, but most often than not, I noticed the skies are rather blue not cyan or green, and skin tones come out peachy.
There is also a difference in Kodak Portra 35mm and 120mm.
Kodak Portra - 35mm
Credit: Emulsive.org
Credit: Emulsive.org
Credit: Emulsive.org
Kodak Portra 400 - 120mm
Credit Flickr: Matt Allouf
Kodak Portra 400 - 120mm film roll
Credit : Terry Lee Hammons The Dark Room
Kodak Portra 400
Credit Tom Araujo The Dark Room
You can notice how real film references are more on the magenta side than on the green side. Even tho I saw some references which came out with high predominance on Teal Yellow Orange colors, Portra most often is more magenta and peachy than warm and green like the reference of Fuji recipe.
That being said, it's true your colors are coming out much colder and on the magenta side compared to my PDF reference. If you check my reference image, you will notice the colors are warmer and less magenta compared to your shots. So adjustments are needed.
The A1 might be slightly colder and more magenta compared to the a6700, maybe quite similar to the a7SIII color science, which makes sense since they were released in the same period. To match it with the a6700, I recommend raising the temperature by 300-400 and pushing the color filter to A7.
If you want to match your colors closer to the Fujifilm XT5, bring the kelvin up by 400-600 and color filter to A7-G1.
Hope this helps!
As a follow-up, I found this video comparing FujiWeekly's Portra 400 recipe to real Kodak Portra 400 film, and you can easily notice how the Fuji recipe is a lot greener compared to real Portra 400.
Check it out
https://youtu.be/-dBtVK-nsJU?si=U6KZ4yqHW5nmFJld&t=266