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Fujifilm

Fujifilm MCEX-45G WR Macro Extension Tube - Black

★★★★★4.0 (18 reviews)

Expand your GF lens system into macro territory with Fujifilm's weather-resistant 45mm extension tube.

$429.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Fujifilm MCEX-45G WR is a 45mm macro extension tube engineered specifically for the GF medium format lens system. By increasing the distance between the lens and the camera's sensor, it allows GF lenses to focus much closer to a subject than their native minimum focus distance permits, enabling true macro and close-up photography. Because the tube contains no optical elements whatsoever, it preserves the full resolving power of whatever GF lens is mounted to it. Full electronic contacts maintain autofocus capability and aperture control, keeping the shooting experience seamless.

Built to match the durability standards of Fujifilm's professional GFX system, the MCEX-45G WR features weather-resistant construction that guards against moisture and dust intrusion. This makes it a practical choice for nature and field macro work. Photographers can also pair it with the shorter MCEX-18G WR tube to fine-tune their magnification ratio. At 45mm of extension, be prepared for a noticeably shorter working distance and some light loss — a tripod and additional lighting are recommended for best results.

Key Features

Two types (18mm, 45mm) will be available. You can choose from the two types of tubes depending on the level of magnification you require

Package Dimensions: 13.1 H x 11.7 L x 12.8 W (centimetres)

Package Weight: 0.456 kilograms

Country of Origin : Japan

Specifications

Extension Length
45mm
Mount
Fujifilm GF
Lens Compatibility
All Fujifilm GF Lenses
Weather Resistance
Yes (WR)
Optical Elements
None
Electronic Contacts
Yes
Country of Origin
Japan
Package Dimensions
13.1 x 12.8 x 11.7 cm
Package Weight
0.456 kg

Pros & Cons

👍 Pros

  • Provides high magnification ratios without purchasing a dedicated macro lens
  • Weather-resistant construction matches Fujifilm's WR-rated bodies and lenses
  • No optical elements means zero degradation to image quality
  • Maintains full electronic communication for autofocus and aperture control
  • Can be stacked with the MCEX-18G WR for even greater magnification

👎 Cons

  • 45mm of extension significantly reduces the working distance between lens and subject
  • Causes noticeable light loss, requiring longer exposures or higher ISO settings
  • Only compatible with Fujifilm GF mount lenses, not X-mount
  • Minimum and maximum focus distances shift, eliminating the ability to focus at infinity

Frequently Asked Questions

It is compatible with all Fujifilm GF medium format lenses.
Yes, full electronic communication between the lens and camera body is preserved, so autofocus and aperture control continue to function.
Yes, the MCEX-45G WR features weather-resistant construction, so it can be used in light rain or dusty conditions when paired with a WR-designated body and lens.
Yes, the two tubes can be combined for a total of 63mm of extension, increasing the magnification ratio further.
Because it contains no optical elements, the MCEX-45G WR does not introduce any additional glass into the optical path, preserving the native image quality of your GF lens.

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