No camera modification required, just install the 135W to your camera, and switch your camera to multiple exposure mode.

Currently Supported Cameras:

• Hasselblad V-mount Series(500C/M, 501CM, 503CX)
• Mamiya RB67 (RB67Rro, Pro-S/Pro SD)
• Bronica Series:
  ▸ ETR (ETR/ETRS/ETRSi)
  ▸ SQ (SQ/SQ-A/SQ-Ai)
  ▸ EC & EC-TL
  ▸ S2 & S2A
• Camera that support Graflok23 mount
• Alpa Mount

1. Use with waist-level finders only. Eye-level finders would cover the film advance knobs.
2. Incompatible: Hasselblad 1000F,2000F, EL/M.

Shoot wide. Shoot wild! MutexTech 135W are available in sprocket-hole exposure. There are the options you could choose:

• Classic Format: No exposure in sprocket-holes.
• Sprocket Format: Exposure up to the sprocket holes.

This option cannot change while shoot films, because it’s fixed by the camera adapter. So please think twice before make choose. For Hasselblad user, we only provide the Classic Format option made from high quality CNC adapters.

For 6×7 camera like Mamiya RB67, there’s a 56mm or 65mm width option.

• Viewfinder Mask Included
  • Optical acrylic precise mask, just pure composition.
• Auto-Stop Film Advance System
  • We designed a simple and efficient auto-stop gear system that prevents over-advance issue.
• Durable Metal Adapter
  • CNC-milled adapter, precision and durability.
• Manual Film Advance and Rewind.
  • Feel the mechanical. No batteries, no worry about the charging.

• How many exposure could 135W takes?
  • 56mm width: 22 frames (36-exp. film)
  • 65mm width: 18 frames (36-exp. film)
• Is 135W fully manual operation?
  “Fully manual: Film loading/advance/rewind require direct handling. No electronic coupling with camera systems, similar to LF sheet film holders.”
• Is 135W 3d printed?
  “Yes, the 135W integrates strategic 3D-printed components (shell, pressure plate, knobs) where complex geometries and lightweight durability matter.Those parts are made from high-quality PETG-CF/PA6″
• Why does my 135W look different from product images?
  “Your 135W includes a camera-specific adapter tailored to your model, that’s why it’s look different”

The ECO810SS creatively incorporates standard components like aluminum profiles, it makes it a reality for users to upgrade and expand the camera functions on their own. Additionally, it boasts high compatibility with the Sinar camera system, allowing users to utilize various Sinar accessories to extend the capabilities of the ECO810SS.

(Photos from ECO810)

ECO camera as one of the most modular designed camera, providing unlimited possibility for every user. Since the camera frame is build with standard profile, you can easily applying any accessories like the cold shoe, back panel QR lock, screw focusing kit we’ve already provided on printables. We promise to keep open source those upgrade kit as long as these parts are easy to find. It is even possible to build another camera with ECO810 as we’ve already provide a quick shot conversion kit and a sinar p/f 8×10 conversion kit. Community user @hang and @clim has mount there ECO810 onto a toyo and arca-swiss monorail. And this modular spirit will be also apply to our 4×5, 14×17 and 20×24 camera.

The front stand features the Sinar standard designs, compatible with accessories including Sinar lens board, Sinar DB electronic shutter, etc.

The ECO810SS has a flexible snapshot structure that allows you to adjust the position of the front group, by using a nut to adapt different wide-angle lenses.
When installing new lens to the ECO810SS, we recommend the focus position of the lens locked at infinity, and you can adjust the depth of field range by lower the aperture or adjusting the position of the nut lock.

The ECO810SS allows for an adjustable bellows length range from 70 to 170mm (with M6X150mm screws in the kit) , accommodating 70mm to 170mm wide-angle lens lenses. You could also replace to a longer M6 screws for longer lenses, or a shorter screws for super-wide lens like Hypergon 75mm. The bellows are made of modern material, eliminating worries about bellows sagging and ensuring waterproofing and mold resistance for outdoor.

Considering the demands for low-weight and minimize size in outdoor photography, the ECO810SS was designed with lightweight and compact folding as a goal. After several design optimizations, the folded dimensions of the ECO810SS are only 336x336x145mm, with a weight of 2.5Kg , making it more convenient for outdoor use.

The ECO810SS kit include a finely machined Fresnel brightening screen. With the help of Fresnel screen, you will get a much brighter view from the focus screen.

Hypergon was originally produced by C.P.GOERZ, in 1900s, which is the first ultrawide lens with flat imaging field, low distortion, with super-fast speed (comparing to pinhole). It’s a milestone in ultrawide landscape photographic, and still the widest large format lens 100 years after its launching.

It’s quite hard to find a Hypergon in good condition. This reproduction is based on a first version Hypergon with lots of upgradations. Although it’s marked as C.P.GOERZ. BERLIN. , it’s not a C.P.GOERZ. BERLIN product. C.P.GOERZ. was sold to Zeiss Ikon AG after WWI and itself no longer exist after WWII. Current C.P.GOERZ is held by C.P. Goerz American Optical Company, which is held by Schneider Optics, differing from C.P.GOERZ. BERLIN. Also, the D.R.P No. 126500 was the original Hypergon patent, which is expired after WWII.

The reproduction seems identical to the original one but not the same. We’ve did some slightly change on screw dimensions so you will not get a fake original Hypergon at high price. Here are some upgradations on reproduction to the original one.

The lens will come with a linhof-type lens board and 0.5m black silicon tube. Here’s a reference for mounting holes. We’ve also provided cad files for other type of lens boards so that it could fit your camera.

The ECO810 creatively incorporates standard components like aluminum profiles, it makes it a reality for users to upgrade and expand the camera functions on their own. Additionally, it boasts high compatibility with the Sinar camera system, allowing users to utilize various Sinar accessories to extend the capabilities of the ECO810

ECO camera as one of the most modular designed camera, providing unlimited possibility for every user. Since the camera frame is build with standard profile, you can easily applying any accessories like the cold shoe, back panel QR lock, screw focusing kit we’ve already provided on printables. We promise to keep open source those upgrade kit as long as these parts are easy to find. It is even possible to build another camera with ECO810 as we’ve already provide a quick shot conversion kit and a sinar p/f 8×10 conversion kit. Community user @hang and @clim has mount there ECO810 onto a toyo and arca-swiss monorail. And this modular spirit will be also apply to our 4×5, 14×17 and 20×24 camera.

The front stand features an eccentric structure to keep the gravity center of lens as close to the front stand’s center as possible, ensuring stability when using heavy lenses and accessories.

The front stand focusing structure employs adjustable damping, allowing users to focus within lightspeed and adjust reliably and precisely.

The use of self-locking hinges provides reliable support for the rear standard movements, making tilting operations more convenient without the need for repetitive locking actions compared to traditional strut designs.

The ECO810’s three-section Phillips structure allows for an adjustable bellows length range from 50 to 750mm, and both the front and rear stands can move both sides, accommodating most wide-angle and long-focus lenses. The bellows are made of high tech modern material, eliminating worries about bellows sagging and ensuring waterproofing and mold resistance for outdoor.

Considering the demands for low-weight and minimize size in outdoor photography, the ECO810 was designed with lightweight and compact folding as a goal. After several design optimizations, the folded dimensions of the ECO810 are only 350x350x110mm, with a weight of 4.5Kg (with Full Pro Upgrade Kit), making it more convenient for outdoor use.

The ECO810 kit include a finely machined Fresnel brightening screen. With the help of Fresnel screen, you will get a much brighter view from the focus screen.

The ECO810 has already received recognition from users in China, and we hope it will also lead you into the world of 8×10 large format photography.