NikonGear'23

Gear Talk => Camera Talk => Topic started by: Michael Erlewine on November 21, 2017, 13:24:02

Title: A7R3 and the Result of Pixel-Shift
Post by: Michael Erlewine on November 21, 2017, 13:24:02
Here is the article on Pixel-Shifting:

https://petapixel.com/2017/11/18/testing-sonys-new-pixel-shift-feature-a7r-iii/

Ony's New Imagine Edge Software can now be downloaded here:

https://support.d-imaging.sony.co.jp/app/imagingedge/en/download/


They have posted what I imagine is the final software for processing the pixel-shift images. The pixel-shift technique in the camera produces four raw images. Are we supposed to post-process those images before we submit them to the software?

My main question is this: If the cameras takes four images in raw and then processes them, what format are they returned in: JPG or TIF? I guess it can't be raw, but that is what I would like to have, of course. Anyone know?




Title: Re: A7R3 and the Result of Pixel-Shift
Post by: Alaun on November 21, 2017, 13:36:03

Michael, one click further from your second link, it is explained:
https://support.d-imaging.sony.co.jp/app/imagingedge/en/instruction/1_2_about_psm.php

You shoot raw, the software takes raw and delivers a new raw
Title: Re: A7R3 and the Result of Pixel-Shift
Post by: Michael Erlewine on November 21, 2017, 13:43:39
Michael, one click further from your second link, it is explained:
https://support.d-imaging.sony.co.jp/app/imagingedge/en/instruction/1_2_about_psm.php

You shoot raw, the software takes raw and delivers a new raw

Thanks! So the final image is raw if I read it right.
Title: Re: A7R3 and the Result of Pixel-Shift
Post by: Jack Dahlgren on November 21, 2017, 16:05:49
RAW is often just a thinly disguised TIFF
Title: Re: A7R3 and the Result of Pixel-Shift
Post by: TedBaker on November 21, 2017, 16:30:38
Here is the article on Pixel-Shifting:


Isn't this an just old technology reapplied to a DSLR?
Title: Re: A7R3 and the Result of Pixel-Shift
Post by: Les Olson on November 21, 2017, 17:20:23
Isn't this an just old technology reapplied to a DSLR?

You are right that fractional pixel shift - either 1/2 or 1/3 pixel - as a form of image enhancement has been around for years.  What people imagine whole pixel shift is doing is one of life's mysteries.