PROTECTOR
Available mounts
The SIGMA Protector is a high-quality, colorless protective filter designed for everyday use. Its primary function is to shield the front lens element from dust, dirt, and scratches without affecting image quality. With ultra-low reflection and high optical performance, it is an ideal choice for photographers seeking reliable lens protection in any shooting condition.
Key Features
Material:
High-transparency optical glass with Super Multi-Layer Coating
Protection & Durability:
Protects lens surface from dust, dirt, and scratches
Ideal for regular use
Completely colorless – does not affect color reproduction
Optical Performance:
Ultra-low reflection thanks to SIGMA’s Super Multi-Layer Coating
Black-rimmed glass minimizes internal reflections
Uniform light transmission across the image
Verified with SIGMA’s proprietary MTF system using 46MP Foveon sensors
Design & Storage:
Slim frame (46mm to 82mm); standard frame (86mm to 105mm)
Includes a durable acrylic case with integrated elastomer holder
Case designed to resist accidental opening and long-term wear
Available Sizes:
46mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm, 86mm, 95mm, 105mm
Compatibility:
Fully compatible with all SIGMA lenses and other lenses with matching thread sizes
Origin:
Made in Japan
FEATURES
PRODUCT LINEUP
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Normal type
Protector is developed to protect the lens surface from dirt and dust as well as scratches. It is an ideal filter for regular use as it is completely colorless so does not affect color reproduction.
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Ultra Low-reflection
By incorporating Sigma’ｓ Super Multi-Layer Coating, the filter reduces flare and ghosting. In addition, black rimmed glass eliminates unnecessary internal reflections, and provides high performance for both digital cameras and film cameras.
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High quality and compatibility with all Sigma lenses
Sigma has checked the compatibility of all Sigma filters with all Sigma lenses. In addition, Sigma has confirmed that these filters allow light to pass through evenly throughout the image, from the center to the edges. All Sigma lenses in its new lines are checked with Sigma’s proprietary Modulation Transfer Function (MTF) measuring system (A1)* using 46-megapixel Foveon direct image sensors, and all Sigma filters are also manufactured to meet this same exacting standard.
*A1: Aizu 1
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Case ideal for filter storage
The storage case is made of a special acrylic that is both stronger and more flexible than conventional filter storage case materials. The outer acrylic case is molded so as to be integrated with the inner elastomer holder, creating a filter holder designed to last many years with minimal deterioration. The case is designed to be highly durable and not open or close accidentally during use. All of these individual benefits add up to a case that is ideal for filter storage.
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MADE IN JAPAN
All Sigma filters are made completely in Japan, including all individual processes applied in their manufacture.