MARUMI Carrying Pouch for M100 Holder
MARUMI Carrying Pouch for M100 Holder



    Key Features

    Exclusive light pollution cut filter with scratch resistance
    Avoid orangish or yellowish color shift by artificial light source
    Outstanding maintenance performance, Water-/Oil-/Fingerprint-resistant
    Double side Coating for low reflection
    Lightweight and thin aluminum frame, Low profile & easy handling, non-rotating mount
    Made in Japan

    • Product Type: EFFECT
    • Barcode: 4957638170116

    Marumi StarScape

    The Marumi StarScape is an exclusive light pollution cut filter of screw-in type.

    • Enables astrophotography to bring well-controlled color balance by suppressing unwanted color shifts to an orangish or yellowish picture.
    • Only 1/4 stop equivalent to 1.2x Filter factor is realized to secure the indispensable exposure for starscape photography,
    • Easy-to-maintain coating embedded, twelve layers in total on both sides;
    • Water-/Oil repellent coating sheds water off simply also by the air blower. Nuisances such as sweat, skin crème, lotion, fingerprint, or compounded grease stains will be wiped off.
    • Anti-reflection coating sustains a low reflection.
    • Made in Japan

    When and on which occasion do we need to use Marumi StarScape filter?

    The Star Scape filter cuts light pollution caused by artificial light sources to capture the true beauty of the starry sky.


    What is "Light Pollution"?

    Light pollution refers to artificial light sources such as;
    mercury lamps,
    - sodium lamps,
    - LEDs,
    - fluorescent lamps,
    - or Automobile headlights that brighten the night sky and make it difficult to see stars.

    In modern inhabited areas, it is hard to see the Milky Way in urban cities, and when you actually take a picture, the night skyscape sometimes turns obviously yellowish. This color shift phenomenon is caused by, so to say, "Light Pollution".
    This color shift makes the starscape-/nightscape photograph enthusiasts very annoyed.

    How does Marumi StarScape eliminate Light pollution?

    The color shift phenomenon will be suppressed by kneading a component that absorbs unwanted light into the glass, t turning the overall image naturally bluish.
    In addition, no matter which white balance is selected, there is no extreme color shift.

    The brightness is a significant element for starscape photography, and it can be sufficiently secured at an exposure multiplier of 1.2 (about 1/4 stop).


    The StarScape filter is also available in the M100 Square Filter System.




    General Info
    ModelMarumi StarScape
    Main Characteristics
    Frame MaterialAluminum
    Frame structureNon-rotating
    Frame structureThin frame

    Optical Properties of StarScape

    The StarScape filter selectively absorbs specific wavelengths of strong light emitted by artificial urban light sources, which are the main cause of light pollution, while allowing the wavelengths from celestial bodies to pass through. This effectively cuts light pollution without compromising the colors of celestial objects.

    Marumi StarScape Kit

    Sources of Light Pollution

    Light pollution refers to artificial light sources such as:

    • Mercury lamps (435.8, 546.1, 577.0, and 579.1 nm)
    • Sodium lamps (589 nm)
    • LEDs (approx. 470 nm)
    • Fluorescent lamps
    • Automobile headlights that brighten the night sky and make it difficult to see stars

    The transmission curve above shows a decrease in transmittance for specific visible light wavelengths (400-700nm), such as mercury lamps (435.8, 546.1, 577.0, and 579.1 nm), sodium lamps (589 nm), and LEDs (approx. 470 nm). This indicates that these artificial light sources emit harmful orange and yellow light, which can interfere with astronomical observations and contribute to light pollution, making it difficult to see cold color stars in the night sky.