Neptune Convertible Art Lens System

Neptune Convertible Art Lens System

A lightweight and compact Art Lens System with three interchangeable prime lenses and two aperture mechanisms for unlimited stylistic possibilities.
  • The only tool you need in your camera bag
  • Achieve countless experimental styles with ease
  • Three fixed focal lengths: 35 mm, 50 mm and 80 mm
  • Macro adapter for intimate, detailed shots
  • Six special aperture plates for delicate bokeh shapes
SKU: neptune

In stock



But what if you could also swap out the individual pieces inside that lens? That is exactly what Lomography did with the Neptune, a convertible art lens system that is essentially three prime lenses in one.
— Digital Trends

Three prime lenses, two aperture mechanisms, one lens system: The Neptune Convertible Art Lens System is a complete and compact solution for every photographer.

Dual aperture system. Each front lens works with a stopless iris diaphragm aperture mechanism to produce smooth bokeh at larger apertures and exceptionally sharp images at smaller apertures.

Exceptional optical quality – each lens has been handcrafted using the finest glass optics.

Experiment with aperture – each lens has its optimal maximum aperture – f/3.5 for Thalassa, f/2.8 for Despina and f/4.0 for Proteus. But with Thalassa and Proteus, you can bypass this optimal maximum aperture to experiment and create unique effects.

Lightweight and compact, it’s the only thing you need in your camera bag – no matter where your creativity takes you.

Lomography has designed the base and the set of three prime lenses: 3.5/35, 2.8/50 and 4.0/80. They practically fit inside your pocket and give you versatility and good quality on the budget.
— DIY Photography

Thalassa Front Lens with its 35 mm focal length and closest focusing distance of 0.25 m is perfect for architecture, street photography and reportage. As this focal length is very close to that of the human eye, you can get close to your subject, fill the frame, and immerse yourself in the shot.

Six special drop-in aperture plates for extraordinary bokeh shapes including diamond, cross, teardrop, sun, star and patterned circle.

Despina Front Lens with its 50 mm focal length and closest focusing distance of 0.4 m is ideal for everyday, fashion and studio photography – it comfortably captures everything from full-length portraits to editorial spreads in stunning high definition.

Compatible with analogue and digital cameras including Canon EF, Nikon F and Pentax K bodies and more when using an adapter.

Proteus Front Lens with its 80 mm focal length and closest focusing distance of 0.8 m boasts a shallow depth of field producing beautiful, soft bokeh perfect for framing a subject and guiding your viewer to the focus of your shot in portrait, sport and action photography.

The Neptune System is absolutely suitable for my Rock’n’Roll needs. I need something that is small and compact.
Acey Slade

Also compatible with the Naiad Art Lens, the 15 mm ultra-wide-angle prime lens specifically designed for the Neptune Convertible Art Lens System.

It’s not easy to find three even halfway decent name-brand lenses for under $1,000, so the versatility of Lomo’s new system might be the best thing about it at this price.
— The Verge


Three prime lenses, two aperture mechanisms, one lens system. Inspired by the world’s first convertible lens created by Charles Chevalier in the late 1830s and reimagined for modern-day analogue and digital SLRs, the Neptune Art Lens System is the only thing you need in your bag – no matter where your creativity takes you.

With three interchangeable lens components that you can attach to the lens base to shoot at a fixed focal length of 35 mm, 50 mm or 80 mm – this handcrafted Art Lens System has an optimal feature for any shooting situation. Each front lens has its optimal maximum aperture, but you can push beyond these to experiment. Each Art Lens System also comes with a macro adapter so you can get incredibly close to your subject for intimate, detailed shots. That’s not all – the Neptune Convertible Art Lens System also includes six special aperture plates that you can insert in front of the iris diaphragm to edge your frame with delicate bokeh shapes. The stylistic possibilities at your fingertips are endless.

The Best of Two Centuries Combined

The Neptune Convertible Art Lens System pays homage to one of the fathers of photography – inventor of the first ever photographic optic lens, Charles Chevalier. A leading Parisian optician, Chevalier began designing lenses when he was little more than a teenager. In 1835, he designed a lens for Louis Daguerre’s Daguerreotype camera, and the two gave the world practical photography.

Ever the innovator, in the late 1830s Chevalier handcrafted the world’s first convertible photographic optic lens. Drawing inspiration from an 1834 telescope design, the Lunette à Verres Combinés, Chevalier aimed for the stars and invented a photographic lens system that could be taken apart and reassembled to create different focal lengths. Voilà – the convertible lens was born. As photography evolved his concept endured, with more convertible lenses being released throughout the 20th century.

Inspired by the compelling history of the convertible lens, we’ve upgraded and re-defined this classic concept with a host of new creative features to create a comprehensive lens system for a wide range of modern-day analogue and digital cameras.

Lomography Art Lens Family

Lomography Art Lenses feature the finest glass optics to produce photos that will astonish you with their colors and optical character. As well as being designed and assembled by hand, these lenses have been engineered using modern techniques and multi-coated to produce vibrant, strong, wonderful photos with a whole range of contemporary cameras. Each Lomography Art Lens brings with it a wide variety of creative possibilities, no two are the same.

Question & Answers

Does my Neptune Convertible Art Lens System work on my mirrorless camera?

Package Contents

  • Neptune Convertible Lens Base
  • Thalassa Front Lens: 35 mm
  • Despina Front Lens: 50 mm
  • Proteus Front Lens: 80 mm
  • Front and Rear Lens Caps
  • Macro Adapter
  • Six special Aperture Plates
  • Manual and Photo Book
  • Lens Certification Card
  • Warranty Card
  • Cleaning Cloth
  • Lens Pouch