Points in Focus Photography

LED Panel Project – PWM Control Test 1

Over the past couple of weeks, I’ve been writing about my LED light project. This article is no different. There’s functionally two aspects of this project that I’m working on simultaneously. One is designing an actual LED Light panel, we the controller for one at least ,and the other is more investigative work on various […]

Dynamic Range and Lights

Today I want to talk briefly about dynamic range, but not that of a camera sensor. Instead I want to talk about the dynamic range of a light. As I mentioned in a previous blog post, I’m working on designing an LED Light Panel controller and part of designing such a thing is figuring out […]

Quality of Light Tests – DiY Light Panel

Quite a while back, before I learned the proper terminology, I wrote about the metameric failures here and here that occur when using non-tungsten light sources. These sources have become increasingly common and popular due to their low power consumption and low heat output, and solid state — LED — lighting forms the basis of […]

Powering Projectes – Batteries

I just finished soldering together my first test LED light panel, it’s only 492 lumens worth of LEDs, but it’s good enough to start testing a lot of the electronics. So things are slowly moving forward. Today though, I want to talk a bit about power, or rather batteries. I first started thinking about power back […]

DIY Scrim

Design and build yourself a scrim. Why a scrim? Put simply, it’s a highly versatile light modifier that costs pennies to make.

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