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What is FOM? And why it's not important

In the last 5 years, the NV world seems to be caught up with "FOM-Fever" and while FOM does offer some useable information to aid in a purchasing decision, it was actually only developed by government agencies as a way to determine import/exportability of tubes. The actual definition of Figure of Merit (FOM) is the product of Signal-to-Noise Ratio (commonly expressed as SNR) multiplied by Centre Resolution (in line-pairs per millimeter)⠀⠀⠀⠀⠀⠀ FOM = SNR x Resolution⠀⠀ The reason why FOM doesn't matter, especially when SNR and Res is available is because you can have a tube that has a very high SNR, and low Res, up against a tube that has a low SNR and high Res, and both could...

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What is Collimation?

  What is collimation?You may have heard of this term somewhere in your search for night vision and possibly dismissed it as yet another night vision jargon but in fact, collimation has one of the most important roles to play in binocular night vision. Believe it or not, binocular night vision housings come with optical pods that often do not line up perfectly. Collimation is the process of aligning the two independent optical axes of each pod so they both point exactly straight in three dimensional space. Why is this important? When using a pair of goggles that are not properly collimated, the human eye and brain tries to correct the misalignment by either crossing your eyes subconsciously, or your brain...

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RPO lenses - worth the hype?

A new line of PVS-14 lenses made by Rochester Precision Optics (RPO) have been gaining popularity in recent months due to their reduced weight over standard PVS-14 lens assemblies. We acquired a set for Testing and Evaluation and to determine viability as a future offering. Here are our findings: Setup The test above was conducted as follows: Camera: Sony A7S3 with 16-35 Sony G-Master F/2.8 lens mounted on Peak Designs aluminum tripod; PVS-14 DSLR direct lens adapterSettings: 1/50s shutter; F/2.8, manual white balance, 24fps, S-Log3 colour profile, manually focusedNight Vision Device: CH/PVS-14 Pro with objective retaining ring removed to facilitate swapping of objective and ocular lensesImage tube: Photonis Echo MX-11769 white phosphor intensifier (same tube/device used for both shots) A 10s clip was recorded...

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Cadex vs Wilcox G24 Mounts - A Comparison

This was originally posted on our Instagram HERE. We get asked a lot about the benefits of the Cadex mount and how it compares to the G24. As always, we'll show you. The biggest difference between the Cadex mount and the G24 is the increased fore/aft travel. Not only does the Cadex get the incumbent device closer to your eyes, eliminating the "drinking straw" effect and giving you full view of your viewing window, it also extends substantially farther than the G24, providing additional versatility for other mission-essential equipment for gas masks and other high-profile face protection. The second difference is the adjustable dovetail built into the Cadex shoe. This clever mechanism allows you to dial in the perfect solid...

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We hate pre-orders - a peek behind the curtain

As a consumer looking for night vision in 2021 it may seem common-place for night vision retailers to offer "pre-orders" for night vision devices. However, if you take a step back and look at the actual situation, it's quite bizarre. Would you comfortably fork over over $4000 to wait "6-8 weeks" for a say, a high-end TV? Most people would simply find an alternate model or retailer elsewhere. However, this was not the landscape of night vision in Canada in 2021. In fact, the demand has been so incredibly high that we have not been able to keep up. While we're proud to say that all of our monocular devices are shipping next-day were shipping next day as-of two days...

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