After raising $585,085 through Kickstarter earlier this year, Lomography is finally ready to release its Neptune three-in-one lens system for sale to the general public. This odd system uses a single lens base that accepts three different front element groups to can create three individual focal lengths.

The Neptune system provides 35mm f/3.5, 50mm f/2.8 and 80mm f/4 optical configurations via the interchangeable front groups, and two switchable iris units. The kits are available in Nikon, Canon and Pentax mounts and cost £840/$990.

The kits come with all three front element groups—called Despina, Thalassa and Proteus—as well as a set of cut-out stops that influence the shape of out-of-focus highlights to create stars, discs and crosses, among others. A set of adapters is also available for MFT, Fujifilm X and Sony NX cameras that work with the Nikon F and Canon EF mount versions.

For more information, read the full release below or visit the Lomography website.

Press Release

The Neptune Convertible Art Lens System

One Story, Unlimited Endings - Now Available in the Lomography Online Shop and Gallery Stores Worldwide

  • One System, Three Prime Lenses, Two Aperture Mechanisms: The Neptune Convertible Art Lens System packs countless creative options into one compact package. Mix and match focal lengths, f/stops, and special aperture plates to adapt the Neptune Convertible Art Lens System to your style, mood or subject.
  • Three Fixed Focal Lengths for Flawless Images in Every Situation: This handcrafted lens system delivers superb optical quality at a fixed focal length of 3.5/35mm, 2.8/50mm or 4/80mm. The Neptune Convertible Art Lens System offers clean and crisp shots, dense colors and unlimited freedom of choice.
  • A Dual Aperture System for Extended Creative Options: Rely on the seamless iris diaphragm aperture mechanism for stunningly sharp photos and videos, or use the special drop-in aperture plates to create rich bokeh.
  • An Expandable System to Grow With Your Creativity: Inspired by Charles Chevalier’s innovative concept, the Neptune Convertible Art Lens System looks to the future — Lomography is already designing a brand new front lens with an ultra-wide- angle focal length of 15mm.

One System, Three Prime Lenses, Two Aperture Mechanisms:

The Neptune Convertible Art Lens System offers unlimited stylistic possibilities to a whole new generation of photographers. It’s a single lens system that consists of three interchangeable lenses, each of which can be attached to the lens base to shoot at a fixed focal length of 3.5/35mm, 2.8/50mm or 4/80mm. What’s more, you can switch through a range of apertures and use special drop-in aperture plates to achieve countless shooting styles.

Ideal for photography and perfect for videography because of its seamless aperture, the Neptune Convertible Art Lens System offers you the ideal tools and much more for complete creative freedom — whether you’re capturing street, fashion, nature, portraiture or just the beautiful simplicity of everyday life. After months of hard work and incredible support from Kickstarter backers around the world, Lomography is excited to announce the Neptune Convertible Art Lens System is now available in the Lomography Online Shop and Gallery Stores worldwide.

Three Fixed Focal Lengths for Flawless Images in Every Situation:

Each Neptune Convertible Art Lens System has been carefully assembled by hand using the finest multi- coated glass optics. Your shots will be clean, crisp and filled with strong, saturated colors even at the unrivalled closest focusing distances of 0.25m (35mm), 0.38m (50mm), 0.8m (80mm). With three elements in three groups in the lens base, and four elements in four groups in each of the interchangeable front lenses, the Neptune Convertible Art Lens System delivers prime-lens optical quality whilst offering a choice of three different fixed focal lengths.

Use the Thalassa 3.5/35 Art Lens to frame architecture, street and urban scenes at 35mm; rely on the versatile 50mm focal length of the Despina 2.8/50 Art Lens for fashion, editorial and everyday; or change to the Proteus 4/80 Art Lens and shoot perfect portraits and beautiful nature photography at 80mm. Inspired by Neptune’s moons, each focal length is determined by the proximity of their lens’ namesake to that distant, blue planet. Handcrafted to be lightweight and portable, the Neptune Convertible Art Lens System is small, compact and the only thing you need in your bag — no matter where your creativity takes you.

A Dual Aperture System for Extended Creative Options

Each of the interchangeable lens elements of the Neptune Convertible Art Lens System works with a seamless iris diaphragm aperture mechanism to produce meticulously sharp images at smaller apertures, and beautiful smooth bokeh at larger apertures. Each prime lens has its own optimal maximum aperture — f/3.5 for Thalassa, f/2.8 for Despina and f/4.0 for Proteus; but you can also push beyond these to experiment and produce unique effects with the Thalassa and Proteus lens elements. And that’s not all — the Neptune Convertible Art Lens System also includes special aperture plates that you can insert in front of the iris diaphragm to edge your frame with delicate bokeh.

An Expandable System to Grow With Your Creativity

The potential of the Neptune Convertible Art Lens System is unlimited. Inspired by Charles Chevalier’s first convertible lens from the 19th century, Lomography is redefining this classic yet ground-breaking concept as an expandable lens system.

Thanks to the support of Kickstarter backers worldwide, Lomography has already been able to release a Neptune Convertible Art Lens System macro adapter. And that’s not all — having asked backers to vote for their preferred focal length, Lomography is also designing Naiad, a brand new front lens with an ultra-wide-angle focal length of 15mm.

No matter where your creativity takes you, with this Art Lens System in your bag, you’ll be ready for everything. Available in Canon EF, Nikon F or Pentax K mount and compatible with a wide range of other cameras using adapters available from Lomography, it’s the ideal solution for photographers and videographers everywhere.

Thalassa 3.5/35mm Despina 2.8/50mm Proteus 4/80mm

Tech Specs

Focal Length: 35mm, 50mm, 80mm, front element group convertible
Aperture: Dual aperture system

  • Multi-scaled diaphragm aperture: 35mm: extended, f/3.5 - f/22 , 50mm: f/2.8 - f/22, 80mm: extended, f/4 - f/22
  • Drop-in aperture plates


Field of View: 35mm: 63°, 50mm: 46°, 80mm: 30°
Lens Mounting Profile: Canon EF, Nikon F or Pentax K
Closest Focusing Distance: 35mm: 0.25m , 50mm: 0.4m, 80mm: 0.8m
Lens Construction:

  • Lens Base: 3 elements in 3 groups
  • Front Lens: 4 elements in 4 groups for each focal length

Filter Thread: 52mm
Lens Coating: Multi-coated Electronic Contacts: No Focusing Mechanism: Helicoid