CHS now offers over 10 different binocular options and we thought it would be handy to summarize the key differences between all of these options as well as provide some thinking/discussion points to guide your decision. We've captured all of the key features and differences and these can be viewed via our online spreadsheet HERE. It can also be downloaded in PDF format HERE. Fixed Bridge vs Articulating This is most likely the most divisive and key decision you will make. Fixed bridge systems are typically stronger and more robust compared to their articulating counterparts due to the lack of a hinging mechanism. A particularly notable advantage of fixed-bridge binocular systems is that they are easier to work with generally...
With the introduction of the new Jerry-YM thermal monocular, we thought it would be helpful to include a summary of key differences between it and the well-established MH25. While the MH25 V2 is substantially improved over the V1, the Jerry-YM does have some key improvements that are worth considering. Jerry-YM Pros: Lighter weight (228g vs 315g) Accepts 18650s natively Includes a helmet-mounting solution out of the box (includes L4G24-style NVG mount and dovetail rail with adjustable IPD) "Scene" optimized thermal profiles (more testing required if these even make a difference practically) Comes in a hard case On-board compass and accelerometer MH25 V2 Pros: Larger eyebox compared to the Jerry-YM Eyepiece does not articulate (Jerry-YM's eyepiece moves forward and backwards when...
Factory dark spots are typically a byproduct of the manufacturing process, typically minute particles trapped inside the MCP or other manufacturing layers, dark spots of various sizes are inevitable and quite literally, magnified when assembled into a night vision device. Most night vision output screens measure roughly 18mm in diameter but through a night vision eyepiece, any imperfection is magnified several times to almost fill your complete vision. While nobody wants to see any spots in their field of view in their night vision, intensifier manufacturers have enacted specific standards when it comes to the maximum number of spots that can be allowed in any given zone. The following image below shows the typical Hoffman zone chart with a number...
We're proud to announce that we have substantially upgraded the way we capture and show through-tube photos beyond current industry norms. Taking photos with a handy camera phone is what most night vision retailers do today and what we also used to do. While expeditious, this method has had limitations and caveats including: distracting IR light glare from the phone (visible via odd pink-coloured artifacts in the image) improper focus leading to fuzzy images and reducing the apparent size of factory dark spots artificial automatic sharpening, contrast and brightness adjustments, colour correction, and other artifacts applied lack of resolution and detail drifting white balance (causing large variances in hue and colour cast) Continuing to push the boundaries of providing objective information...
Continuing to push the boundaries of performance and value, Cold Harbour Supply is proud to announce that in addition to our industry-leading Echo builds, we will start to offer Echo+ intensifiers in our complete devices. The difference between Echo and Echo+ is simply the FOM rating. Echo intensifiers have FOM figures between 1600-2000, while Echo+ are 2000+. So functionally, what does 2000+ FOM potentially get you? As one of our blog posts pointed out, FOM is simply the product of Centre Resolution x Signal-to-Noise Ratio. This means that by guaranteeing a higher baseline FOM rating, you would be able to access either higher Resolution, or higher SNR, or potentially both. While standard Echo intensifiers hold their own and yield a very...
