Optical Design Revealed: The M16 Lens JSD6628 Built for 50MP Sensors
In the world of industrial optics, there is an arms race happening. Sensors are getting bigger, and pixel counts are skyrocketing. But here is the dirty little secret: a 50MP sensor is worthless if your lens looks like it was made in the 90s.
Today, we are pulling back the curtain on the JSD6628, a lens that was optically engineered from the ground up to handle the "heavy lifting" of massive 50-megapixel resolution.
This isn’t a gadget for your holiday DSLR. This is a precision instrument for machines that need to see the world in ultra-high definition. Let’s decode the design secrets behind this M16 powerhouse.

1. The "Big Sensor" Challenge (1/1" Image Circle)
Most compact lenses (S-mount) tap out at 1/2" or 2/3" sensors. They simply can't cover the real estate of a modern high-end chip.
The JSD6628 is a different beast. It features a massive 1/1" (1-inch) Image Circle.
Why does this matter? It means you can use the latest, largest industrial global shutter sensors without cropping or vignetting. It allows the lens to capture more information, feeding every single one of those 50 million pixels with light.
2. M16: The Goldilocks Form Factor
How do you fit glass big enough for a 1-inch sensor into a compact body? You graduate from M12.
The M16 Thread is the unsung hero of this design. It allows for larger optical elements—necessary for that high resolution—while keeping the footprint significantly smaller than a C-Mount lens.
With a TTL (Total Track Length) of just 34.49mm, the JSD6628 offers "big lens performance" in a "small lens package." It’s the perfect fit for compact industrial cameras where space is at a premium.
3. Resolving Power: 50MP is No Joke
Designing a lens for 50MP isn't just about polishing the glass a bit more. It requires strict control over spherical aberration and chromatic aberration.
The JSD6628 ensures that the contrast remains high from the center of the image all the way to the edge. Whether you are inspecting micro-chips or scanning documents, the lens resolves the finest details that lower-grade optics would turn into a blur.
4. The Geometry of Precision (6.6mm EFL & <3% Distortion)
Here is where the optical designers really showed off.
The View: With an EFL of 6.6mm, you get a sweeping 102° Field of View. You see the whole scene.
The Discipline: Usually, 102° means curved lines. But the JSD6628 clamps Distortion down to <3%.
The Speed: An aperture of F/2.8 ensures the system is fast enough to freeze motion on a conveyor belt without cranking up the gain (and noise).

The JSD6628 is not a consumer toy; it is an industrial workhorse. It bridges the gap between compact design and massive resolution.
By successfully mating a 1-inch image circle with 50MP resolving power inside a tight M16 form factor, this lens proves that you don't need to sacrifice size for performance. If your machine vision system is ready to upgrade to ultra-high resolution, the JSD6628 is the glass that will get you there.
