Category Archives: Alexa

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 8 – Final thoughts

Geoff did a hell of a job with the Bristol files, and what little I have done here is just meant as supplementary analysis. Initially I was curios about the Alexa and the Dragon and how resolution could affect the image. Which I looked into here. And amongst other things, found this:   After looking into the resolution of the F55 and getting these results, that triggered a bit of curiosity.     Essentially, according to the charts, the Alexa resolves less than 1080 (or at least a less precise…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 7 – 1080 – Crops

Nad the final round of comparisons.   Interior, scaled to 1080, 200% blowup:     And a 100% crop from the EXT 1080     And that pretty much ends the comparison, unless you wanna move on with me to the concluding thoughts.   If you like me to publish tests and have use of what I do, I do accept and appreciate contributions to the work through Paypal ______________________________________________________________________________________________ All imagery on gunleik.com is © Gunleik Groven, unless otherwise stated. For TFP shoots, the images belong to me and…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 6 – 1080

And here goes the 1080 examples (Click on the images to get fullreaz low compression examples. RED Dragon with ADD     RED Dragon – Normal     ARRI Alexa, scaled to 1080     SONY F55 Scaled to 1080     And the exteriors: RED Dragon ADD scaled to 1080     RED Dragon scaled to 1080     ARRI Alexa scaled to 1080     SONY F55 scald to 1080   And Finally. let’s move on to the crops. If you like me to publish tests and have use…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 5 – UHD – crops

So the Alexa and Dragon are scaled to UHD, the F55 just gets cropped down. These are 200% views of select areas of the UHD images. If you see some pixelation, that is due to the upscaling to look at what goes on.   Click the image to get fullrez lowcompression jpg’s… Int:     And the ext comparison:     Next: The 1080 comparisons.     If you like me to publish tests and have use of what I do, I do accept and appreciate contributions to the work…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 4 – UHD

So let’s have a look at the UHD images (Click on the image to get a 1:1 UHD image) RED Dragon ADD (Downscaled)     RED Dragon Normal (Downscaled):     ARRI Alexa (Upscaled)     SONY F55 (cropped)   RED Dragon ADD (Downscaled) RED Dragon Normal (Downscaled)     ARRI Alexa (Upscaled)     Sony F55 (cropped)       Next: Areas of interest     If you like me to publish tests and have use of what I do, I do accept and appreciate contributions to the work…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 3 – Extreme Pixel-peeking

Warning… This page consists of extreme pixel-peeking. If you find that offensive or unnecessary, just move on to the UHD or 1080 scales (which after all are the most relevant for UHD or 1080 delivery) Anyhow. I find the pixelpeeking interesting to understand what goes on in the final deliverables, so I usually do a bit of that. These images will not look god, and they are not meant to look good.     Now. The Alexa-resolution is “as expected”. The surprise (if any) is the F55 after this test and…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 2 – Native resolution

A good way to start the party would be with fullraster unscaled images from all the cameras. You have to click the jpg, to get to the fullraster low-compression image. These frames are not all captured at the same second, but they are captured at the same stop and lighting setup and the lights are measured by Geoff Boyle and his lightmeter to be even for all the cameras. Dragon was shot at 5,5k HD, all other cameras were shot at full resolution.   Dragon: Standard development:     Dragon,…

3,5-camera look at resolution and noise: Dragon (+ADD), Alexa, F55 – pt 1 – Preface

Preface. Like the two previous analysis between Dragon and Alexa, and Dragon and F55, this writeup is based on the files recorded at the CML/UWE test conducted by Geoff Boyle. As stated earlier, my write-ups are only to be considered supplementary to the huge amount of work Geoff did on these tests. To sum the two previous articles up: This:http://blog.gunleik.com/?p=1022and this:http://blog.gunleik.com/?p=1202has so far taught me two things: Alexa produces the lowest resolution 1080 image, of the +2k cameras tested, even when shot at 2880 pixels RAW, and the results make…

Dragon and Sony F55 – Resolution, pt 3 – Conclusion – The pitfalls of methodology when testing cameras…

So… The scandalous conclusion would be: There is no significant resolution difference between Dragon and F55 And I guess I could get a fair amount of Internet Hype and hits to my site, through a conclusion like that. But the only conclusion I can draw is that this is inconclusive. And if anything, this demonstrates the pitfalls of camera-testing. (a little pet-subject of mine) Now, hang on, before start flaming me! I am not saying that any intentional things were done wrong here. Actually I was there and subscribed to…

Dragon and Alexa – Looking at resolution – Part 4: Resolution, does it matter?

(6k low-compression .jpg pops up if you click the image) To me, an image can technically be broken down to these aspects: Dynamic range Color cleanness Color fidelity/Saturation Resolution Delivery formatAnd as a final parameter: Is the camera available? (!) All these aspects of an image/camera are part of the matrix that makes us choose one over another for a particular production. After these (to me) these more emotional points come in: Ease of use on set If it works well for the shot I want to get Price of…