Product Summary:
The Nikon AF-S NIKKOR 20mm f/1.8G ED is an ultra-fast, ultra-wide prime lens for Nikon F-mount photographers visiting Japan. It offers an expansive 20mm focal length with a very bright f/1.8 maximum aperture, making it a superb choice for capturing dramatic landscapes, sprawling architecture, and stellar night sky photos.
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Contact Jasumo Now →Remarkably lightweight at only 355 grams, this lens provides a wide 94 degree angle of view (FX), allowing photographers to emphasize foreground subjects and capture a strong sense of perspective, all while utilizing the Nano Crystal Coat and premium optics for excellent image quality.
Quick Highlights:
- Ultra-Wide and Ultra-Fast: 20mm focal length combined with an exceptionally bright f/1.8 aperture for low-light and depth of field control.
- Compact and Lightweight: Highly portable design, weighing only 355 grams, ideal for travel and hiking.
- Premium Optics: Includes 2 ED and 2 Aspherical elements for high sharpness and minimized distortion across the wide field.
- Nano Crystal Coat: Reduces ghosting and flare, ensuring clear, high-contrast images, critical for wide-angle shooting.
- Extreme Close Focusing: Minimum focusing distance of 0.2 m allows for striking wide-angle close-up compositions.
- Wide Angle of View: Provides a 94 degree view on FX cameras for dramatic perspectives.
Product Details / Description:
This 20mm f/1.8G is a specialized lens that is essential for photographers who want to capture scenes with incredible depth and perspective, such as large Japanese temples, modern cityscapes, or the vastness of the countryside. Its speed makes it a favorite for astrophotography (Milky Way and star trails).
About the Product
The AF-S NIKKOR 20mm f/1.8G ED features an optical construction of 13 elements in 11 groups. This sophisticated design includes two Extra-low Dispersion (ED) glass elements to prevent chromatic aberration and two Aspherical elements to correct spherical aberration and distortion, ensuring high image fidelity even at the widest aperture.
The lens uses a Rear Focus (RF) system driven by the Silent Wave Motor (SWM) for quick, quiet, and reliable autofocus. The wide 94 degree angle of view and the f/1.8 aperture allow photographers to create a dramatic sense of depth by placing subjects very close while softly blurring the background with the 7-blade circular diaphragm.
Key Features
- F1.8 maximum aperture is excellent for low-light and astrophotography.
- The 94 degree angle of view is perfect for dynamic, sweeping shots.
- Minimum focusing distance of 0.2 m provides a maximum magnification of 1/4.3x.
- Nano Crystal Coat maintains contrast in high-contrast or backlit conditions.
- Standard 77mm filter size for professional filter systems.
Technical Specifications
| Feature | Specification |
| Focal Length | 20mm |
| Maximum Aperture | f/1.8 |
| Lens Construction | 13 elements in 11 groups |
| Filter Size | 77mm |
| Minimum Focusing Distance | 0.2m |
| Weight | 355 grams |
What’s in the box (Included Items):
- AF-S NIKKOR 20mm f/1.8G ED Lens
- Lens Hood
- Front Lens Cap
- Rear Lens Cap
- Dedicated Lens Case/Pouch
- Protective Filter (attached to the lens)
Where This Product Can Be Used:
- Astrophotography (night sky, Milky Way) due to its wide angle and fast aperture.
- Dramatic landscape photography that emphasizes foreground elements.
- Interior and architectural photography in large halls or museums.
- Action sports or event coverage in close quarters.
- Street photography to capture a wide field of view with depth.
Why Tourists Rent From Us
- English-speaking customer support for easy communication.
- Accept foreign credit cards for hassle-free payment.
- No Japanese phone number required for booking or communication.
- Offer hotel & Airbnb delivery across major Japanese cities.
- Easy return for travelers with convenient shipping options.
Book with Jasumo:
If you are ready to rent this product, you can contact us with the Product Name, the Rental start date and end date, your delivery Location, and other important details you want to share. After we get a request from you, our team will start communicating with you as soon as possible.
Faqs:
Why is this lens a popular choice for astrophotography?
The combination of the ultra-wide 20mm focal length and the super-fast f/1.8 aperture makes it ideal for astrophotography. The wide field of view captures a large section of the sky, while the f/1.8 aperture gathers maximum light quickly, allowing the photographer to use shorter exposure times. This helps prevent star trailing, resulting in sharper, more detailed images of the night sky.
How does the 20mm focal length differ from 24mm in use?
The 20mm focal length is noticeably wider than 24mm (94 degrees vs. 84 degrees on FX). This extra width provides a much more dramatic sense of scale and perspective, making it excellent for large scenes where you want the viewer to feel immersed. Objects close to the lens appear larger, enhancing the sense of depth.
What is the equivalent field of view on a Nikon DX (APS-C) camera?
When mounted on a Nikon DX-format camera, the 20mm focal length is effectively multiplied by 1.5x, giving you an equivalent field of view of approximately 30mm. This transforms it into a very fast, slightly-wide prime lens—an excellent, versatile option for travel and low-light shooting on a crop sensor.
What does the minimum focusing distance of 0.2m allow for?
The ability to focus as close as 0.2 m is a significant feature for a wide-angle lens. It allows you to get extremely close to a foreground subject (like a flower, food, or artifact) and render it large in the frame, while the wide angle still keeps the background context visible. This creates a dramatic compositional technique known as “wide-angle macro” or “hyper-perspective.”
What is the function of the two Aspherical elements in this lens?
The two Aspherical elements are crucial in this high-speed wide-angle design to maintain optical correction. They are used to suppress spherical aberration, which can cause softness and coma (light distortion at the edges), especially when shooting wide open at f/1.8. This ensures sharp, clear performance across the frame, even in the corners.
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