Category Archives: Alexa

Dragon and Alexa – Looking at resolution – Part 3: The scaled-images

UHD Here is the UHD scale for Alexa and RED Dragon (click on the images and zoom in to get a 1:1, low compression .jpg): The 770 pixels untouched center-crop:   The center-crop with unsharp mask applied:   And finally a link to an uncompressed TIFF of the log center-crop.   1080 Fullrez 1080 scaled:     The 770 pixels log center-crop:   And the centercrop at 1080 scaled with unsharp mask applied: And finally the unsharp mask TIFF So far I have avoided commenting the results, but this final…

Dragon and Alexa – Looking at resolution – Part 2: The base-images

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  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…

Dragon and Alexa – Looking at resolution – Part 1: Preface

Back in early February 2014, I took part in Geoff Boyles UWE/CML camera-test. Video for rent here: https://vimeo.com/ondemand/cameras Geoffs extensive analysis here: http://www.cinematography.net/UWE/index.html Geoff put a lot of work into that material, and what little I will be doing here is complementary, not in concurrence with his work and findings. In addition to what is published, we shot some resolution tests, which Geoff decided not to publish, as the framings were uneven, and I did a couple of tests on my own. I will mainly be focusing on Dragon and…