Here are the basic frames I start off with (You will find the RAW files on the bottom of this page)
Dragon was shot at full resolution, (6144×3160) pixels.
Alexa was Â shot at full resolution: (2880×1620) pixels
The following image illustrates the difference in captured pixels (Click image to get a 1:1 pixel representation):
The FOV of these two images is not equal, which made Geoff decide against publishing.
I was curious if I still would have a “relevant” frame for comparison if I cropped the Dragon image tomatch the FOV as the Alexa:
This gives a pretty interesting and relevant comparison IMHO. Dragon is cropped to a resolution of: 5280×2970 which is pretty much S35 FOV, like the Alexa.
This is a Â relevant FOV for what many will Â shoot the Dragon for. S35 is where all S35 optics work “out of the box” and where most DOPs know what FOV to expect from any particular lens.
And a lot of TV-series will have the 6k setting turned constantly “off” to save diskspace.
The images were shot on 85mm UltraPrimes at the same stop and rating (T22 @ 800ASA Â on all cameras)
I used the Arriraw converter to export a 16-bit fullrez 16-bit LogC TIFF, and RCX to export a 16-bit RedLogFilm TIFF from the respective cameras.
No sharpening or ADD applied to either of the cameras in this part of the process.
For the Dragon image I eyeballed the FOV to match the Alexa and cropped that to be exactly 16:9. No scaling of the original image applied in this process.
For the scaling to 1080 and UHD, I used Photoshop and the “best” scaling-algorithm for uprez and downrez suggested by Photoshop.
AFTER making fullrez UHD and 1080 examples, I made a 770 pixels centercrop of both the UHD and 1080 developments, for easier web-comparison.
And finally I applied levels and a uniform 2-pixels 100% UnsharpMask to the resulting 770 pixels 1:1 crops from UHD and 1080.
I will make the 770 pixels centercrops downloadable as TIFFs. The rest will be low-compression .jpg’s.
On to part 3:
The scaled images.
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