Sigma

Sigma AFA940 52mm Multi-Coated UV Filter

4.0 (244 reviews)

Enhance Your Images with UV ProtectionThe Sigma DG 52mm Multi-Coated UV Filter protects your lens while enhancing image quality. This filter blocks harmful UV light, reducing blue cast and increasing brilliance, making it ideal for both film and digital photography. Brand: Sigma Model: AFA940 Fil...

$14.95*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Enhance Your Images with UV Protection

The Sigma DG 52mm Multi-Coated UV Filter protects your lens while enhancing image quality. This filter blocks harmful UV light, reducing blue cast and increasing brilliance, making it ideal for both film and digital photography.

  • Brand: Sigma
  • Model: AFA940
  • Filter Size: 52mm
  • Type: UV Filter
  • Coating: Multi-Coated
  • Features: Blocks UV Light, Protects Lens

Key Features

High-quality Sigma UV Filter blocks the invisible UV component of light from the sky

Ideal for photography in high altitudes

Pictures gain brilliance

Elimination of the unwanted blue cast

Protection for the front element of your lens

Specifications

Filter Type
UV Filter
Diameter
52mm
Coating
Multi-Coated
Primary Function
Blocks invisible UV light component
Benefit 1
Pictures gain brilliance
Benefit 2
Eliminates unwanted blue cast
Benefit 3
Protection for lens front element
Ideal Use Case
Photography in high altitudes

Pros & Cons

👍 Pros

  • Effectively blocks the invisible UV component of light, leading to clearer and more vibrant images.
  • Ideal for photography in high altitudes, where UV radiation is typically more intense.
  • Helps pictures gain brilliance by removing unwanted atmospheric haze caused by UV light.
  • Eliminates the unwanted blue cast that can occur in outdoor photographs, resulting in more natural colors.
  • Provides an additional layer of protection for the delicate front element of your valuable lens against dust and scratches.

👎 Cons

  • The filter is specifically designed for a 52mm lens, which limits its direct compatibility with other lens sizes.
  • While it offers protection, it adds an extra piece of glass to the optical path, which could theoretically introduce minor distortions or reflections under extreme conditions.
  • Its primary function is UV reduction and lens protection, so it does not offer creative effects like polarizing or neutral density filters.

Frequently Asked Questions

The main purpose of this filter is to block the invisible UV component of light from the sky, which helps pictures gain brilliance and eliminates unwanted blue casts.
Yes, it is ideal for photography in high altitudes where UV radiation is typically stronger and can cause atmospheric haze.
This Sigma UV filter is designed for lenses with a 52mm thread diameter.
Yes, it serves as an extra layer of protection for the front element of your lens against dust, scratches, and impacts.
This filter is designed to remove the unwanted blue cast caused by UV light, which can result in more true-to-life colors in your images.