Brian Boyer
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Here's a comparison of IR performance between 5DMKIII, Alexa, R1, Epic MX, F55 and Epic Dragon using a Hoya R72 IR filter. Dragon does well.
The video's info is in French, which I don't speak. I screen captured, online OCRed and Google Translated the juiciest bits. You get the gist of the rest.
Btw, "ouverture" means opening. In this case, it's the act of opening the iris.
https://www.youtube.com/watch?v=AFQWOSn95Xg
The (somewhat edited for clarity) translation:
By pushing the image to its limits, we find that with 5DMKIII, only a tiny amount of light beyond 720nm is captured by the sensor and visible in highlights. Here, 5DMKIII seems to have an integrated IR cut filter in its OLPF.
Let's go back now in the thick of it!
Except for the Canon 5DMKIII, images of this comparison were shot one morning in January under a cloudy sky. It was around 0 degrees celsius. The appearance of the infrared image is not a consequence of beautiful and warm weather. It results from the visible spectrum densification revealed that the wavelengths lie beyond.
The ARRI ALEXA, RED ONE MX, and RED EPIC are the most sensitive cameras in the field. The infrared image is clear and well presented the iris compensation. By comparison, the rendering of the RED EPIC is very desaturated. Undoubtedly, its OLPF must contain correction in order to minimize the effects of adverse tint characteristics of the IR.
In this comparison, the Canon 5DMKIll and RED DRAGON show that their OLPFs already have an integrated IR cut filter and effective from 720nm. The sensitivity of these camera’s IR is almost zero.
The images of the Sony F55, with or without neutral filter integrated, are very close to what it is possible to see with the naked eye through the Hoya R72 filter. I the red Gamut of this camera the one that is closest to the human eye?
Permissiveness of the F55 is almost zero. However, attention is called: the "deep red" can harm the highlights with use of too high a density.
The video's info is in French, which I don't speak. I screen captured, online OCRed and Google Translated the juiciest bits. You get the gist of the rest.
Btw, "ouverture" means opening. In this case, it's the act of opening the iris.
https://www.youtube.com/watch?v=AFQWOSn95Xg
The (somewhat edited for clarity) translation:
By pushing the image to its limits, we find that with 5DMKIII, only a tiny amount of light beyond 720nm is captured by the sensor and visible in highlights. Here, 5DMKIII seems to have an integrated IR cut filter in its OLPF.
Let's go back now in the thick of it!
Except for the Canon 5DMKIII, images of this comparison were shot one morning in January under a cloudy sky. It was around 0 degrees celsius. The appearance of the infrared image is not a consequence of beautiful and warm weather. It results from the visible spectrum densification revealed that the wavelengths lie beyond.
The ARRI ALEXA, RED ONE MX, and RED EPIC are the most sensitive cameras in the field. The infrared image is clear and well presented the iris compensation. By comparison, the rendering of the RED EPIC is very desaturated. Undoubtedly, its OLPF must contain correction in order to minimize the effects of adverse tint characteristics of the IR.
In this comparison, the Canon 5DMKIll and RED DRAGON show that their OLPFs already have an integrated IR cut filter and effective from 720nm. The sensitivity of these camera’s IR is almost zero.
The images of the Sony F55, with or without neutral filter integrated, are very close to what it is possible to see with the naked eye through the Hoya R72 filter. I the red Gamut of this camera the one that is closest to the human eye?
Permissiveness of the F55 is almost zero. However, attention is called: the "deep red" can harm the highlights with use of too high a density.