Viltrox AF 35mm f/1.8 II EVO FE (APO) Lens Review for Astrophotography

A Strong Budget Option for Astrophotography

The Viltrox AF 35mm f/1.8 II EVO FE (APO) offers an attractive blend of performance and price, making it a compelling choice for photography enthusiasts, especially in the realm of astrophotography. Released in April 2026, the lens is positioned as a budget-friendly full-frame prime lens, with a retail price of $399 / £385. This lens is available for Sony FE and Nikon Z mounts, expanding its accessibility for photographers.

Performance and Image Quality

The Viltrox AF 35mm f/1.8 is praised for delivering great, albeit not perfect, image quality. Testing indicated that images are sharp in the center at f/1.8, but some astigmatism appears at the edges where stars might look like crosses instead of points. While this may not be immediately noticeable, it is something astrophotographers will want to take into account. The lens also shows the strongest vignetting at f/1.8, which clears up when stopped down to f/4. For photographers looking for optimal sharpness for starry skies, aiming for f/2.8 may strike a balance between quality and exposure settings.

Image quality peaks in the range of f/8 to f/11, with a gradual increase in sharpness from f/2.8 to f/5.6. Beyond f/11, diffraction can slightly degrade image quality, making it less optimal for capturing the fine details of celestial bodies.

Design and Build Quality

Weighing in at just 12.52 oz (355 g) and measuring 3.33 x 4.37 inches (69 x 76 mm), the lens is compact and lightweight, making it a convenient addition to any photographer’s kit. Its 58mm filter thread is also appealing for budget-conscious users looking to employ various filters.

The build quality is surprisingly robust for a lens in this price range. It features a metal design paired with a weather-sealed construction, providing some protection against light rain and dust. A rubber gasket at the lens mount also adds to its durability. A manual aperture ring enhances the user experience, allowing click and clickless operation—ideal for both still photographers and videographers who might want to adjust settings silently.

Functionality and Features

This Viltrox lens comes with several useful features. Notably, it includes a USB-C port for easy firmware updates using a smartphone or desktop application, bypassing more cumbersome methods common with other lenses. Additionally, the lens boasts a stepping motor (STM) that offers fast and silent autofocus performance—though, given that astrophotographers often prefer manual focus, the lens's smooth manual focus ring is a notable advantage.

Focusing is internal, meaning the front element does not rotate—a significant benefit for using filters, particularly when taking long-exposure shots of astrophotography subjects. The lens’s customizable Fn button allows users to set it up according to their shooting preferences as well.

User Reviews and Reception

Receiving acclaim from users across platforms, the Viltrox AF 35mm f/1.8 is recognized for its sharp images and appealing pricing. While it may not rival the higher-end Sony G Master lenses, the consensus is that it delivers exceptional value for money. Users frequently highlight its sturdy build and great appearance when mounted on their cameras.

Comparison with Other Options

For those considering alternatives, the Viltrox AF 35mm f/1.2 LAB FE lens offers a much faster maximum aperture. However, it comes at a higher price, larger size, and added weight. Additionally, the Sony FE 20mm f/1.8 G is well-regarded for those seeking a wider perspective, offering elite image quality along with a similar compact build and lightweight design.

Should You Buy the Viltrox AF 35mm f/1.8 II EVO FE (APO)?

Reasons to Buy

• Budget-Friendly: The price point makes this lens incredibly attractive compared to higher-end offerings.
• Compact and Lightweight: Ideal for on-the-go astrophotographers who require portability.

Reasons to Avoid

• Not the Absolute Best Quality: Users looking for top-notch performance might need to explore premium alternatives.
• Avoid If Shooting APS-C: The effective focal length on a crop sensor would yield a 52.5mm equivalent, which may not suit everyone’s needs.

Key Takeaways

• The Viltrox AF 35mm f/1.8 II EVO FE (APO) is priced at $399 / £385.
• The lens offers great, although imperfect, image quality with some edge astigmatism.
• It weighs 12.52 oz (355 g) and has a compact design with weather sealing.
• It balances well with Sony A-series cameras and features a USB-C port for firmware updates.

Final Thoughts

For astrophotographers looking for a budget lens, the Viltrox AF 35mm f/1.8 II EVO FE (APO) stands out as a compelling choice. Its combination of affordability, decent image quality, and compact design makes it suitable for a variety of photography scenarios. While it does have limitations—such as vignetting and edge performance—the positives far outweigh the negatives, especially considering the price point. As the lens continues to be widely available, it could become an essential part of many photographers' kits.