Feb 06

Wie die Lytro Kamera die Welt sieht: RAW-Daten eines LichtFeld Sensors

Wie die Lytro Kamera die Welt sieht: RAW-Daten eines LichtFeld Sensors (Foto: Corby Ziesman, CC-by-nc-nd 2.0) Lytro’s LichtFeld Sensor besteht aus einem herkömmlichen CMOS Bildsensor und einem darauf montierten, sogenannten Mikrolinsen-Raster. Mit dieser Kombination wird es möglich, anstatt einer flachen Abbildung des Motivs auch die Richtung der einzelnen Lichtstrahlen aufzuzeichnen (mit Hilfe komplexer Algorithmen).
Aber was bedeutet das wirklich, und was genau sieht der LichtFeld Sensor eigentlich?

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Feb 06

How the Lytro Camera sees the World: Raw Data of a LightField Sensor

How the Lytro Camera sees the World: Raw Data of a LightField Sensor (photo: Corby Ziesman, CC-by-nc-nd 2.0) Lytro’s LightField Sensor consists of an ordinary CMOS imaging sensor, and a so-called microlens array mounted on top of it. Using this combination, it becomes possible to not only record a flat representation of a scene, but also the direction of individual light rays (using complex algorithms).
But what does that really mean, and what exactly does the sensor see?

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Jan 09

Software Hack: Interactive Picture Refocus for ordinary Digital Cameras

Software Hack: Picture Refocus for ordinary Digital Cameras So you like the interactive Refocus feature of Lytro’s LightField Camera, but not its 400+ $ pricetag?
There’s a way to achieve the same effect using an ordinary DSLR or Compact System Camera (interchangeable lens camera), and in this post, we’ll tell you how to do it!

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Jan 05

Homemade Lytro Modifications and Accessories: DIY Ring Light, DIY Filter Adapter and a LightField Microscope

Homemade Lytro Modifications and Accessories: DIY Ring Light, DIY Filter Adapter and a LightField Microscope (photo: Peter Lee) Lytro’s LightField Camera is the first consumer product of an entirely new category of camera, so it’s no wonder that technology enthusiasts are attracted by its new features. It is that same tech-excited target audience that likes to play around with things to see what they can use them for.
In this article, we’ll show you some interesting DIY inventions and modifications for the Lytro camera, that we’ve recently come across:

First up is Twitter user @jgeorge, who has created his own Lytro LED ring light, using a 4 $ LED flashlight and some breadboard:

DIY: Homemade Lytro Ring Light by jgeorge DIY: Homemade Lytro Ring Light by jgeorge in use DIY: Homemade Lytro Ring Light by jgeorge in use

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Jan 03

Perspective Shift Feature breaks lfpsplitter [Lytro]

Perspective Shift feature breaks lfpsplitter (Picture: Lytro Raw camera extract by Nirmal Patel) Those of you who are using lfpsplitter to extract data and image stacks from LightField files have no doubt already noticed this, but we thought we’d bring it out to the open:
With the introduction of the new Perspective Shift feature last December, Lytro has made some changes to the structure of -stk.lfp files which effectively break lfpsplitter’s functionality.

The culprit seems to lie in file compression: Continue reading