21mm Wide Conversion Lens (GW-4)

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21mm Wide Conversion Lens (GW-4)
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The Ricoh 21mm Wide Conversion Lens (GW-4) is a remarkable addition to the Ricoh camera system, designed to enhance your photography experience.
This review will explore the lens's key features, optical performance, build quality, usability, and overall value, providing an in-depth analysis to help you make an informed decision.
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Steve Huff

Key Features

The GW-4 offers an impressive set of features that make it a compelling choice for photographers seeking a wider perspective. It is specifically designed for use with Ricoh cameras, seamlessly integrating with the existing lens system.
With a focal length equivalent to a 21mm lens on a full-frame camera, this conversion lens expands the field of view, allowing you to capture stunning landscapes, architecture, and group shots with ease.

Optical Performance

When it comes to optical performance, the GW-4 excels. The lens delivers exceptional sharpness and clarity throughout the frame, even when shooting at wider apertures.
Chromatic aberration and distortion are well-controlled, ensuring accurate color reproduction and straight lines.
The lens's wide aperture range enables creative depth-of-field control, resulting in striking images with a sense of depth and dimension.

Build Quality

Ricoh's commitment to quality is evident in the GW-4's construction. The lens features a robust metal barrel that feels solid in hand and can withstand the rigors of daily use.
The precise craftsmanship ensures smooth operation and a satisfying tactile experience. The lens also comes with a secure bayonet mount, ensuring a snug fit to the camera body without any wobbling or play.


One of the standout features of the GW-4 is its user-friendly design. Attaching and detaching the lens is a breeze, thanks to the quick and secure bayonet mount.
The lens is lightweight, adding minimal bulk to your camera setup, allowing for comfortable handheld shooting. It also maintains electronic communication with the camera, providing automatic exposure and autofocus capabilities.
This seamless integration allows you to focus on capturing the moment without any technical distractions.


The GW-4 enhances the versatility of your Ricoh camera system by providing a wider perspective. It allows you to capture more of the scene, making it ideal for landscape photography, architectural shots, and group portraits.
The lens also excels in street photography, enabling you to capture the hustle and bustle of urban environments with a unique and immersive viewpoint. Whether you're a seasoned professional or an enthusiastic hobbyist, the GW-4 opens up new creative possibilities.


In terms of value, the GW-4 offers a compelling proposition. It provides a cost-effective solution for expanding your camera's capabilities without investing in a dedicated wide-angle lens.
The optical performance, build quality, and usability justify the lens's price, making it a worthwhile addition to your photography gear.


The Ricoh 21mm Wide Conversion Lens (GW-4) is an impressive accessory that complements your Ricoh camera system, enabling you to explore the world of wide-angle photography.
With outstanding optical performance, solid build quality, and user-friendly design, it provides a seamless experience that enhances your creative vision.
Whether you're a landscape enthusiast, architectural photographer, or simply someone who appreciates the art of wide-angle imagery, the GW-4 is a versatile and valuable tool to have in your arsenal.
Embrace the wider perspective and capture breathtaking shots that leave a lasting impression.

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