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Kilfitt 4cm (40mm) f/2.8 Makro-Kilar A Lens

The Kilfitt 4cm f/2.8 is a 40mm f/2.8 cinema lens designed for Other mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Kilfitt 4cm (40mm) f/2.8 Makro-Kilar A Lens

Kilfitt 4cm (40mm) f/2.8 Makro-Kilar A Lens

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Lens Overview — Kilfitt 4cm f/2.8

The Kilfitt 4cm (40mm) f/2.8 Makro-Kilar A is a vintage prime lens built for macro work, offering a fixed 40mm focal length and a maximum aperture of f/2.8. Classified as a macro lens type, it is entirely manual focus in operation, with no autofocus system of any kind — a characteristic consistent with its era of manufacture. The lens carries an 'Other' mount designation, which reflects the wide variety of proprietary and legacy mounts this lens was produced for, meaning buyers should carefully verify mount compatibility with their intended camera system before purchasing.

The lens format is similarly listed as 'Other,' indicating it sits outside standard modern full-frame or APS-C classifications. There is no image stabilization, which is expected for a manual vintage optic of this nature. No filter thread size is specified in the available data.

As a prime lens with a standard focal length range designation, the 40mm focal length positions it as a versatile option for close-up work when adapted appropriately. This is a collectible, manual-operation lens suited to photographers and filmmakers who appreciate working with vintage glass and who are comfortable with fully manual focus techniques.

Key Features — Kilfitt 4cm f/2.8

40mm Prime Focal Length: Fixed 40mm field of view provides a natural, near-normal perspective well suited to close-up and macro subject work.

f/2.8 Maximum Aperture: A reasonably fast maximum aperture for a dedicated macro lens, allowing separation between subject and background even at close distances.

True Macro Capability: Purpose-built for close-up photography, capable of achieving high magnification ratios to render fine subject detail.

Manual Focus Design: Fully manual focus operation gives the shooter precise, deliberate control — particularly valuable for critical macro work where small adjustments matter.

Vintage West German Construction: Manufactured by Heinz Kilfitt in Munich, this lens reflects the high-quality optical craftsmanship associated with mid-20th century German lens makers.

Legacy Mount Compatibility: Originally produced in multiple proprietary mounts; buyers should confirm the specific mount variant before purchasing and plan for an adapter if needed.

Lens Specifications — Kilfitt 4cm f/2.8

Kilfitt 4cm f/2.8 full specifications
SpecDetail
Use CasesMacro, Creative Effects
Lens TypeMacro
FormatFull Frame
Zoom/PrimePrime
Focal Length40mm
Maximum Aperturef/2.8
Camera SystemOther
Lens MountOther
AutofocusNo
Focus TypeManual
Image StabilizationNone

Description — Kilfitt 4cm f/2.8

The Kilfitt 4cm (40mm) f/2.8 Makro-Kilar A is a vintage prime lens with a macro type classification, purpose-designed for close-up photography. With a fixed 40mm focal length and a maximum aperture of f/2.8, it offers a consistent standard-range perspective with no zoom adjustment. Operation is entirely manual focus — there is no autofocus mechanism of any kind, placing full focusing responsibility with the operator.

The lens carries no image stabilization. The mount is designated as 'Other', which reflects the proprietary or legacy mount standards associated with this vintage optic; buyers must confirm mount compatibility independently before purchase or plan for adapter use. Lens format is similarly listed as 'Other,' leaving sensor coverage details unspecified in the available data.

No filter thread size or weight data is available in the specifications. This lens is listed across both Digital Cinema Lenses and Photo & Video Lenses categories, making it of interest to collectors, macro shooters, and filmmakers working with adapted vintage glass.

Pros — Kilfitt 4cm f/2.8

  • ✓Prime 40mm focal length (minFocalLength: 40, maxFocalLength: 40) offers a fixed, distraction-free focal length
  • ✓Maximum aperture of f/2.8 (maximumAperture: 2.8) provides a reasonably fast opening for a macro-type lens
  • ✓Manual focus only (focusType: Manual) gives the operator complete, deliberate control over focus

Cons — Kilfitt 4cm f/2.8

  • ✗Mount listed as 'Other' — buyers must independently verify compatibility with their specific camera system
  • ✗No filter thread size data available, making accessory planning difficult
  • ✗No image stabilization (imageStabilization: None), requiring stable support for close-up work

Videos — Kilfitt 4cm f/2.8

Kilfitt Makro-Kilar 40mm - Popular Photography's 1955 Dream Lens — DURLACHER

Resources & Downloads — Kilfitt 4cm f/2.8

Manuals & Guides

Frequently Asked Questions — Kilfitt 4cm f/2.8

What focal length is the Kilfitt Makro-Kilar A?+
The lens has a fixed focal length of 40mm, as indicated by both the minFocalLength and maxFocalLength values in the specifications. It is a prime lens with no zoom capability.
Does this lens support autofocus?+
No. The specifications confirm autoFocus is false and the focusType is listed exclusively as Manual. All focusing must be performed by hand.
What camera mounts does this lens fit?+
The mount is listed as 'Other' in the specifications, meaning there is no standard modern mount identified. Buyers should research the specific mount variant of the copy they are purchasing and confirm compatibility with their camera body or adapter setup.
What is the maximum aperture of this lens?+
The maximum aperture is f/2.8, as listed in the specifications under maximumAperture. No minimum aperture value is provided in the available data.
Is this lens suitable for video or cinema use?+
The lens is listed under Digital Cinema Lenses and Photo & Video Lenses categories. Its fully manual focus operation and fixed 40mm focal length make it usable in manual cinema workflows, though buyers should confirm mount compatibility and image circle coverage for their specific camera system before use.