Technology

Newton's ring example

IMPORTANCE OF OPTICAL FLATNESS

In optics, the flatness of glass is crucial because it affects how light is transmitted and reflected, which in turn influences the quality of the images produced. When using a camera filter, the presence of Newton's rings in the flatness testing can significantly degrade the actual image quality. Whether or not flatness can be maintained without the appearance of Newton's rings greatly affects the quality of the product.

RBG

NEUTRAL GRAY POLARIZER -RIGHT CENTERED IN RGB CHART

To illustrate its color accuracy, Prime Plasma Sputtering C-P.L can be represented using an RGB chart, which depicts the balance of the three primary colors of light: Red, Green, and Blue, based on ISO 6728:1983 "Photography Camera lenses Determination of ISO color contribution index (ISO/CCI) "
WHAT WE REALLY WANT IN POLARIZER

WHAT WE REALLY WANT IN POLARIZER

What do photographers complain about Polarizers?

Let's explore what users complain about polarizers and how Marumi clears the hurdles that have long frustrated photographers in finding the best-suited polarizer for each individual.

WORLD TOP CLASS LOWEST REFLECTION POLARIZER

WORLD TOP CLASS LOWEST REFLECTION POLARIZER

FAQ: I saw other manufacturers claim better reflectance. What's difference?
Marumi’s factory lab research demonstrates a consistent performance with an average reflectance of 0.18% across the visible spectrum (400-700nm). This isn't just a one-off peak performance but a steadfast guarantee across all wavelengths that matter.

FAQ/ MC-82A OR 82B FILTER. WHAT MEANS THESE NUMBERS AND A LETTER?

FAQ/ MC-82A OR 82B FILTER. WHAT MEANS THESE NUMBERS AND A LETTER?

Marumi used to have various color temperature conversion filter whose name were described with a combination of numbers and a letter such as 80A, MC-85A, or 81B.
This is a stored information for discontinued products in the past. 
CINE&TV -ULTRA-SCRATCH RESISTANT ND FILTER,

CINE&TV -ULTRA-SCRATCH RESISTANT ND FILTER, "WSND-ES"

No-Scratches are expected on the surface of ND-coated filters for making a...
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