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Understanding Bit Depth (Part 3)

In Bit Depth Part1 we defined what is meant by “bit depth” and saw how image quality improves as we progress from 1-bit to 8-bit images. In Part 2, we defined the various bit depth selections you will see on Fastec and other cameras and focused on the relationship between bit selection and dynamic range. In this section we will concentrate the practical how-to of optimizing 10- and 12-bit recordings…. Read More

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Understanding Bit Depth (Part 2)

In Part 1, we introduced a few concepts: A “bit” is a binary digit Mono images with higher bit depths have more shades of gray Color images with higher bit depths have more possible colors Most displays are only capable of presenting 256 shades of gray or 256 shades each of red, green, and blue, which yields over 16 million colors In Part 2 we will cover: Bit Selection for… Read More

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Understanding Bit Depth (Part 1)

We are going to break the subject down into three parts, with a separate post for each: Part 1: the basics–what is a bit? and how do bits relate to images? Part 2: Bit range settings on cameras–what is gained or lost when using them? Part 3: Getting the most out of 10- and 12-bit images   Bit Depth Basics A bit is a digit in the binary (base 2)… Read More

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Using LED Strobe Illumination with High-Speed Cameras

Watch spring captured with LED strobe illumination

Illumination for high-speed imaging can be challenging because of the photographic trade-offs involved. Many high-speed applications require short exposures to eliminate motion blur and high f-stop settings to maximize depth of field. More “sensitive” cameras often have larger pixels, creating an even greater challenge with depth of field. All of this often leaves us scrambling for more light. Adding lots of light, however, can bring its own problems, including needing… Read More

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Pixel Size and Depth of Field

Depth of Field and Pixel Size Tutorial

It’s hard to get everything in focus for your high-speed shot, so it’s important to have good depth of field. In the image on the left, we are trying to capture an ant and a bee interacting. They are both constantly moving, making it difficult to get both of them in focus at the same time. Your application may require getting multiple moving mechanical parts in focus in one shot,… Read More

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Imaging Objects Behind a Screen With a High Speed Camera

Slow motion image of spinning fan blades filmed with Fastec TS5 high speed camera, f/2.8 and 1600fps

When using high-speed cameras to troubleshoot industrial machinery and manufacturing equipment, the objects or parts to record are often partially obscured by a protective screen or grate. Removing the screen may not always be safe or even possible. Throughout this article we will be looking at images of a fan that is rotating at 50Hz and placed behind a screen. The challenge is to be able to take images of… Read More

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