Rolleiflex 2.8 & 3.5 & Yashica Mat TLR: Overview of all lenses and bayonet mounts (Bay I, Bay II & Bay III)
Rolleiflex and Rolleicord cameras were equipped with bayonet mounts for lens accessories (caps, hoods, filters, and close-up lenses) starting around 1937.
The idea of this "double bayonet" is that the independent mounting of a lens hood and a filter is possible, with the lens hood mounted on the outside and the filter on the inside of the bayonet.
The bayonet mount was produced in different sizes depending on the time of production of the camera and lens:
1. Bay I (universally used abbreviation for "Bayonet Type I") is the mount used in cameras with the f/3.5 Tessar, Triotar, and Xenar.
2. Bay II is the version for the f/3.5 Planar and Xenotar.
3. Bay III is the version for the f/2.8 Planar and Xenotar; it was also used for the Tele-Rolleiflex with the 135 mm f/4 Sonnar.
4. Bay IV is the version used for the Wide Rolleiflex with the 55 mm f/4 Distagon.
5. Bay VI is used for Rolleiflex medium format SLRs such as the Rolleiflex 6000, 6006, 6008, and SL66.
Photo: Size chart Rolleiflex TLR with Bay I, II, III & IV
Most TLRs from other manufacturers like Yashica and Minolta usually have f/3.5 lenses, and the Bay-I mount is the most commonly used here.
Here is an overview of all the cameras we know of along with their corresponding mount types.
Rolleiflex Standard and Original
| Camera | Objective | Bayonet connection |
|---|---|---|
| Original Rolleiflex | 75mm Tessar 4.5 or 3.8 taking lens; Heidoscop Anastigmat 75mm F3.1 viewfinder lens | - |
| Standard Rolleiflex | 75mm Tessar 4.5, 3.8 or 3.5 taking lens; Heidoscop Anastigmat 75mm F3.1 viewfinder lens | - |
| Standard Rolleiflex, New Model |
75mm Tessar 3.5 taking lens; Heidoscop Anastigmat 75mm F3.1 viewfinder lens |
Bay I |
| Rollei Magic |
Xenar 75mm 3.5 |
Bay II |
| Rollei Magic II | Xenar 75mm 3.5 | Bay II |
Rolleiflex Automat Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex Automat | 75mm Tessar 3.5 taking lens; Heidoscop Anastigmat 75mm F2.8 viewfinder lens | Bay I |
| Rolleiflex Automat Type 2 | 75mm Tessar 3.5, Opton 75/3.5 or Xenar 75/3.5 taking lens; Heidoscop Anastigmat 75mm F2.8 viewfinder lens | Bay I |
| Rolleiflex Automat Type 3 ("X") | 75mm Tessar 3.5, Opton 75/3.5 or Xenar 75/3.5 taking lens | Bay I |
| Rolleiflex Automat Type 4 ("MX") | 75mm Tessar 3.5, Opton 75/3.5 or Xenar 75/3.5 taking lens; Heidoscop Anastigmat 75mm F2.8 viewfinder lens | Bay I |
| Rolleiflex Automat Type 5 ("MX-EVS") | 75mm Tessar 3.5, Opton 75/3.5 or Xenar 75/3.5 taking lens; Heidoscop Anastigmat 75mm F2.8 viewfinder lens | Bay I |
Rolleiflex 2.8 Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 2.8A Type 1 | 80mm Tessar 2.8 taking lens; Heidoscop-Anastigmat 80mm F2.8 viewfinder lens | Special Bay II for this model |
| Rolleiflex 2.8A Type 2 | 80mm Tessar 2.8 taking lens; Heidoscop-Anastigmat 80mm F2.8 viewfinder lens | Special Bay II for this model |
| Rolleiflex 2.8B Type 1 | 80mm biometer 2.8 taking lens; Heidoscop-Anastigmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8B Type 2 | 80mm biometer 2.8 taking lens; Heidoscop-Anastigmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8C Type 1 | 80mm Xenotar F2.8 taking lens; Heidosmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8C Type 2 | 80mm Planar F2.8 or Xenotar taking lens; Heidosmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8D | 80mm Xenotar 2.8 or Planar 80/2.8 taking lens; Heidosmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8E | 80mm Xenotar 2.8 or Planar 80/2.8 taking lens; Heidosmat 80mm F2.8 viewfinder lens | Bay III |
| Rolleiflex 2.8E E2 | 80mm Xenotar 2.8, Planar 80/2.8 or Opton 80/2.8 taking lens | Bay III |
| Rolleiflex 2.8E E3 | 80mm Xenotar 2.8, Planar 80/2.8 or Opton 80/2.8 taking lens | Bay III |
Rolleiflex 3.5 Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 3.5E Type 1 | 75mm Planar F3.5 taking lens | Bay II |
| Rolleiflex 3.5E Type 2 | 75mm Xenotar F3.5 taking lens | Bay II |
| Rolleiflex 3.5E E2 Type 1 | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens | Bay II |
| Rolleiflex 3.5E E2 Type 2 | 75mm Xenotar 3.5, Planar 75/3.5 or Opton 75/3.5 taking lens | Bay II |
| Rolleiflex 3.5E E3 | 75mm Xenotar 3.5, Planar 75/3.5 or Opton 75/3.5 taking lens | Bay II |
Rolleiflex T Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex T Type 1 | 75mm Tessar 3.5 or Opton 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay I |
| Rolleiflex T Type 2 | 75mm Tessar 3.5 or Opton 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay I |
| Rolleiflex T Type 3 | 75mm Tessar 3.5 or Opton 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay I |
Rolleiflex 3.5F Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 3.5F | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay II |
| Rolleiflex 3.5F Type 2 | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay II |
| Rolleiflex 3.5F Type 3 | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens; Heidosmat 75mm F2.8 viewfinder lens | Bay II |
| Rolleiflex 3.5F Type 4 | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens | Bay II |
| Rolleiflex 3.5F Type 5 | 75mm Xenotar 3.5 or Planar 75/3.5 taking lens | Bay II |
Rolleiflex 2.8F Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 2.8F Type 1 | 80mm Planar F2.8 taking lens | Bay III |
| Rolleiflex 2.8F Type 2 | 80mm Planar F2.8 or Xenotar F2.8 taking lens | Bay III |
| Rolleiflex 2.8F Aurum | 80mm Xenotar F2.8 taking lens | Bay III |
| Rolleiflex 2.8F Platinum | 80mm Planar F2.8 taking lens | Bay III |
Modern Rolleiflex Models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 2.8GX Type I | 80mm Planar HFT F2.8 Taking Lens | Bay III |
| Rolleiflex 2.8GX '89-91 Edition | 80mm Planar HFT F2.8 taking lens | Bay III |
| Rolleiflex 2.8GX Expression 94 | 80mm Planar HFT F2.8 taking lens | Bay III |
| Rolleiflex 2.8GX Helmut Newton | 80mm Planar HFT F2.8 Taking Lens | Bay III |
| Rolleiflex 2.8GX Jersey Edition | 80mm Planar HFT F2.8 taking lens | Bay III |
| Rolleiflex 2.8GX Type II "Expression" | 80mm Planar HFT F2.8 Taking Lens | Bay III |
| Rolleiflex 2.8GX Type II "75 Years" | 80mm Planar HFT F2.8 taking lens | Bay III |
| Rolleiflex 2.8GX Royal | 80mm Planar HFT F2.8 Taking Lens | Bay III |
| Rolleiflex 2.8GX Type II "80 Years" | 80mm Planar HFT F2.8 Taking Lens | Bay III |
Tele and wide-angle models
| Camera | Objective | Bayonet connection |
|---|---|---|
| Tele-Rolleiflex Type 1 | Sonnar 135mm F4.0 taking lens | Bay III |
| Tele-Rolleiflex "Transitional Model" | Sonnar 135mm F4.0 taking lens | Bay III |
| Tele-Rolleiflex Type 2 | Sonnar 135mm F4.0 taking lens | Bay III |
| Wide-Rolleiflex Type 1 | Distagon 55mm F4.0 Recording Lens | Bay IV |
| Wide-Rolleiflex Type 2 | Distagon 55mm F4.0 Recording Lens | Bay IV |
| Rolleiflex 2.8FW | 50mm Super Angulon 4.0 HFT recording lens | Bay III |
| Rolleiflex 2.8FT | 135mm Tele Xenar 4.0 HFT recording lens | Bay III |
| Rolleiflex 2.8FX | 80mm Planar 2.8 HFT Mount Lens | Bay III |
Yashica, Seagul, and Minolta Autocord cameras with Bay I connection
| Camera | Objective | Bayonet connection |
|---|---|---|
| Yashica Mat 124G | 80mm Yashinon f/3.5 taking lens | Bay I |
| Yashica Mat LM | 80mm Yashinon f/3.5 taking lens | Bay I |
| Yashica Mat EM | 80mm Yashinon f/3.5 taking lens | Bay I |
| Yashica D | 80mm Yashikor f/3.5 or Yashinon f/3.5 taking lens | Bay I |
| Yashica 635 | 80mm Yashikor f/3.5 taking lens | Bay I |
| Minolta Autocord | 75mm Rokkor f/3.5 taking lens | Bay I |
| Ricoh Diacord | 80mm Rikenon f/3.5 taking lens | Bay I |
| Seagull 4A | 75mm Seagull f/3.5 taking lens | Bay I |
| Ciro-Flex Models | 83mm Wollensak f/3.5 taking lens | Bay I |
| Flexaret Models | Various 80mm f/3.5 lenses | Bay I |
Rolleiflex Medium Format SLR Lenses
| Camera | Objective | Bayonet connection |
|---|---|---|
| Rolleiflex 6000 | various lenses | Bay VI |
| Rolleiflex 6006 | various lenses | Bay VI |
| Rolleiflex 6008 | various lenses | Bay VI |
| Rolleiflex SL66 | various lenses | Bay VI |