Cokin 43UVS Pure Harmonie Ultra Slim UV Filter — main product image

Cokin 43UVS Pure Harmonie Ultra Slim UV Filter

Cokin

Cokin 43UVS Pure Harmonie Ultra Slim UV Filter

Name: Cokin 43UVS Pure Harmonie Ultra Slim UV Filter
Brand: Cokin
SKU: 43UVS

★★★★★4.4 (128 reviews)

Razor-thin 43mm UV filter at just 3.3mm provides multi-coated lens protection for compact camera systems.

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Overview

The Cokin 43mm Pure Harmonie Ultra Slim UV-MC Filter brings the same precision engineering found in the larger Pure Harmonie line to the 43mm filter thread size. At just 3.3mm thick, it is purpose-built for compact mirrorless and rangefinder lenses where every millimeter of added bulk matters. The exclusive high-transmission glass ensures that sharpness, contrast, and color accuracy remain unaffected, making it a practical choice as a permanent lens protector that stays on through every shoot.

Cokin's EVERCLEAR 5 coating technology sets this filter apart from basic UV options. The five-layer treatment provides water repellency, oil resistance, anti-dust, anti-soil, and scratch-resistant properties, which means the filter stays cleaner longer and is easier to wipe down in the field. The ultra-slim profile also reduces vignetting concerns if your 43mm lens happens to be a wide-angle optic. For photographers who want hassle-free, high-quality lens protection on their smaller-threaded lenses, this filter delivers without compromise.

Key Features

The thinnest UV filter on the market at 3.3mm

Super lightweight which will not compromise AF systems

Exclusive new high transmission glass

Reduces vignetting issues on extreme wide angle lenses

Ever clear 5 multi coating technology

Specifications

Brand

Cokin

Model

43UVS

Filter Size

43mm

Filter Type

UV-MC (Ultra-Violet Multi-Coated)

Thickness

3.3mm

Design

Ultra Slim

Coating

EVERCLEAR 5 Coating Technology (Water Repellent, Anti-Oil, Anti-Dust, Anti-Soil, Scratch Resistant)

Pros & Cons

👍 Pros

Ultra-slim 3.3mm profile is ideal for compact lenses where bulk is a concern.
Five-layer EVERCLEAR coating resists water, oil, dust, soil, and scratches.
Lightweight enough to avoid any interference with autofocus systems.
High-transmission glass maintains sharpness and color fidelity.
Thin design minimizes vignetting risk on wide-angle focal lengths.

👎 Cons

43mm is a less common filter size, limiting options if you want to stack additional filters.
Slim frame makes it more difficult to grip and remove compared to thicker filters.
Primarily functions as a protective filter since UV blocking offers limited benefit on digital sensors.
No storage case or pouch included with purchase.

Frequently Asked Questions

What lenses use a 43mm filter thread?

The 43mm thread size is common on compact mirrorless lenses and some rangefinder optics. Check your lens cap or front barrel for the filter thread diameter marking.

How does the EVERCLEAR 5 coating protect the filter surface?

It provides five layers of protection: water repellency, anti-oil, anti-dust, anti-soil, and scratch resistance, keeping the glass clean and durable during everyday shooting.

Will this filter add noticeable thickness to a compact lens?

At 3.3mm, the Pure Harmonie is exceptionally thin and adds minimal bulk, making it well-suited for compact camera systems where size matters.

Does the multi-coating reduce lens flare or ghosting?

The multi-coating helps minimize reflections that can contribute to flare and ghosting, though its primary purpose is surface protection and maintaining light transmission.

Is this filter safe to leave on the lens permanently?

Yes. The high-transmission glass and ultra-slim design are intended for permanent use as everyday lens protection without affecting image quality.