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Jupiter 36B 250mm f/3.5 Lens

The KMZ 36B is a 250mm f/3.5 lens designed for Pentacon Six mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Jupiter 36B 250mm f/3.5 Lens

Jupiter 36B 250mm f/3.5 Lens

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Lens Overview — KMZ 36B

The KMZ Jupiter 36B is a vintage Soviet-manufactured telephoto prime lens offering a 250mm focal length with a maximum aperture of f/3.5. Designed for the Pentacon Six mount, it is built for medium format camera systems, making it a compelling option for photographers working with medium format bodies who appreciate manual-focus glass with a distinct character. At 1,500g, the lens has a substantial, robust build that reflects its Soviet-era manufacturing heritage.

The 250mm focal length places it firmly in telephoto territory, useful for portraits, nature, and any subject that benefits from subject-to-camera distance compression. With a 77mm filter thread, it accommodates widely available filters for creative or protective use. Focus is entirely manual, which suits deliberate, considered shooting styles and gives the photographer full tactile control over focus placement.

There is no image stabilization, so stable support such as a tripod or monopod is recommended, particularly at this focal length and with the lens's considerable weight. For medium format shooters looking to explore vintage Soviet optics, the Jupiter 36B represents an accessible entry point into long-focal-length manual glass.

Key Features — KMZ 36B

250mm Medium Format Prime: A fixed 250mm focal length designed for medium format systems, providing strong telephoto reach for portraits, nature, and compressed-perspective work.

f/3.5 Maximum Aperture: Reasonably fast for a 250mm telephoto, allowing usable shooting in lower light and some degree of subject separation.

Pentacon Six Mount: Fits cameras using the Pentacon Six mount, including Pentacon Six TL, Kiev 60, and can be adapted to other medium format systems.

Manual Focus Only: Fully manual focus operation gives the photographer direct tactile control over focus placement, suited to deliberate shooting styles.

77mm Filter Thread: Standard 77mm filter thread accepts widely available filters for polarization, UV protection, or creative effects.

Soviet-Era KMZ Construction: Manufactured by KMZ (Krasnogorsk Mechanical Plant), the lens features a robust all-metal build characteristic of Soviet optical engineering.

Lens Specifications — KMZ 36B

KMZ 36B full specifications
SpecDetail
Use CasesWildlife, Portrait, Creative Effects
Lens TypeTelephoto
FormatMedium Format
Zoom/PrimePrime
Focal Length250mm
Maximum Aperturef/3.5
Camera SystemMedium Format
Lens MountPentacon Six
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread77mm

Description — KMZ 36B

The KMZ Jupiter 36B is a 250mm telephoto prime lens built for medium format camera systems and fitted with a Pentacon Six mount. With a maximum aperture of f/3.5 and a 77mm filter thread, it offers a practical telephoto option for medium format photographers who prefer manual glass. Weighing 1,500g, the lens has a solid, heavy-duty feel consistent with its Soviet-era origins.

Focus is fully manual, with no autofocus and no image stabilization, placing full control — and responsibility — in the hands of the photographer. The 250mm focal length is well suited to medium format shooting scenarios where subject compression and reach are priorities. Support equipment such as a tripod or monopod is strongly advisable given the focal length and weight combination.

For those drawn to vintage medium format optics, the Jupiter 36B is a distinctive piece of photographic history.

Pros — KMZ 36B

  • ✓250mm prime focal length provides strong telephoto reach on medium format systems
  • ✓Maximum aperture of f/3.5 offers reasonable light-gathering capability for a 250mm lens
  • ✓77mm filter thread accommodates widely available and affordable filters

Cons — KMZ 36B

  • ✗Manual focus only — no autofocus capability, which may slow down shooting in fast-moving situations
  • ✗No image stabilization, making handheld shooting at 250mm challenging
  • ✗At 1,500g, the lens is heavy and may require dedicated support for extended use

Videos — KMZ 36B

Jupiter 36B Iris Click Sound / Blackmagic Pocket Cinema Camera 4k — Film & Lens Society

Resources & Downloads — KMZ 36B

Manuals & Guides

Frequently Asked Questions — KMZ 36B

What camera mount does the Jupiter 36B use?+
The Jupiter 36B is fitted with a Pentacon Six mount. This limits direct compatibility to cameras designed for the Pentacon Six system, though adapters may expand usability depending on your camera body.
Is this lens compatible with 35mm or full-frame cameras?+
The Jupiter 36B is designed as a medium format lens. Its specifications list the lens format and camera system as Medium Format, so it is intended for medium format bodies rather than 35mm or full-frame systems.
Does the Jupiter 36B have autofocus or image stabilization?+
No. The lens is manual focus only and has no image stabilization. Photographers should plan to use a tripod or other stable support, especially given the 250mm focal length and 1,500g weight.
What filter size does the Jupiter 36B accept?+
The Jupiter 36B has a 77mm filter thread, which is a common size, making it straightforward to find compatible filters for protection or creative effects.
How heavy is the Jupiter 36B?+
The lens weighs 1,500g. This is a substantial weight, and users should factor this into their choice of support and carrying equipment.

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