Bronica GS1 6x7 medium format camera with 100mm f3.5

Selling my beloved 6x7 Bronica GS-1 with AE Prism finder, Grip, 100mm f3.5 Lens and 120film back.

Bronica GS-1, a medium format film camera that holds a special place in the hearts of photography enthusiasts. Introduced in March 1983, the GS-1 was a significant milestone for Bronica, combining innovation, modularity, and practical design.

Bronica GS-1: A Detailed Overview

1. Format and Size:

   • The Bronica GS-1 operates in the 6x7 cm format, making it the largest single-lens reflex (SLR) camera produced by the company.
   • This generous frame size allows for ten super high-resolution images per roll of film.

2. Modularity and Customization:

   • The GS-1 is a completely modular camera system. Photographers can mix and match various components to suit their preferences.
   • Key modular features include interchangeable focusing prisms, viewfinders (with or without exposure metering), lenses, and film backs.
   • Whether you're shooting landscapes, portraits, or studio work, the GS-1 adapts to your needs.

3. TTL Flash Metering:

   • The Bronica GS-1 was groundbreaking—it was the first medium format camera to incorporate through-the-lens (TTL) flash metering.
   • This feature allowed photographers to achieve accurate flash exposures without guesswork.

4. Body Design and Construction:

   • The GS-1 body is wider than its predecessor, the SQ-A, due to the larger film format. However, its depth and height remain similar.
   • The body, back base, and mount are crafted from die-cast light alloy, ensuring durability.
   • Stainless steel mounts and reinforced plastic covers complete the robust construction.
   • With a weight of 630 grams, the GS-1 strikes a balance between sturdiness and portability.

5. Special Editions:

   • Notably, one GS-1 (serial number 3118000) featured a brown leather finish—a departure from the standard black.
   • Additionally, an 80mm f/3.5 lens (serial number 8400001) sported a white lens cover. This unique combination may have been a promotional one-off.

6. Lens System:

   • The GS-1 uses the GS-System lenses, known as Zenzanon lenses.
   • These leaf-shutter lenses offer exceptional optical quality and compatibility with the camera's modular design.
   • Bronica paid meticulous attention to lens correction, vignetting reduction, and unified color balance across the lens series.

7. Electronic Shutter and Power:

   • The GS-1 features an electronically controlled shutter.
   • To operate the camera, you'll need a single 4LR44 battery.
   • The Seiko #0 electronic shutter ensures precise timing for exposures.

8. Viewfinders and Focusing Screens:

   • Interchangeable viewfinders allow photographers to tailor their shooting experience.
   • The GS-1 supports various formats, including 6x7, 6x6, and 6x4.5.
   • Focusing screens can also be swapped to match shooting conditions.

9. Legacy and Impact:

   • The Bronica GS-1 carved its niche by offering a mobile, modular alternative to the heavier Mamiya RZ and RB 6x7 cameras.
   • Its LED display, TTL flash, and multi-format capabilities set it apart.
   • For those who appreciate medium format film photography, the GS-1 remains a cherished choice.

In summary, the Bronica GS-1 embodies versatility, innovation, and craftsmanship. Whether you're capturing grand landscapes or intimate portraits, this modular marvel invites you to explore the world of medium format photography.