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Kiev Arsat 30mm f/3.5 Rectangular Fisheye Lens

The Kiev 30mm f/3.5 Rectangular Fisheye is a 30mm f/3.5 lens designed for Mamiya 645 mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Kiev Arsat 30mm f/3.5 Rectangular Fisheye Lens

Kiev Arsat 30mm f/3.5 Rectangular Fisheye Lens

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Lens Overview — Kiev 30mm f/3.5 Rectangular Fisheye

The Kiev Arsat 30mm f/3.5 Rectangular Fisheye Lens is a distinctive special effect prime lens built for medium format shooting. Designed for the Mamiya 645 mount, it delivers a rectangular fisheye projection rather than the circular rendering associated with many fisheye optics, making it an intriguing tool for photographers seeking highly stylized, wide-angle imagery with a unique spatial distortion. With a focal length of 30mm and a maximum aperture of f/3.5, this manual focus lens sits firmly in the wide-angle range and is fully compatible with medium format camera systems.

Focusing is entirely manual, placing full creative control in the photographer's hands. The lens weighs 500g, which is a reasonable figure for a medium format optic of this type. There is no image stabilization, which is expected for a manual, special-effect lens in this category.

Without a filter thread size listed, accessory filter use should be verified before purchase. Overall, the Arsat 30mm f/3.5 occupies a niche but compelling space for medium format photographers interested in unconventional, creative wide-angle rendering through its rectangular fisheye design.

Key Features — Kiev 30mm f/3.5 Rectangular Fisheye

Rectangular Fisheye Projection: Produces a rectangular fisheye image rather than a circular one, filling the full frame with extreme wide-angle distortion for distinctive creative results.

30mm Medium Format Prime: Single focal length delivers a genuinely wide-angle field of view within the medium format image circle, with no zoom compromise.

f/3.5 Maximum Aperture: Reasonably bright opening for a specialty fisheye lens, allowing use in moderate lighting conditions without a tripod.

Mamiya 645 Mount: Designed specifically for the Mamiya 645 system, one of the most widely used medium format camera platforms, enabling direct mounting without adapters.

Manual Focus Only: Full manual focus control places creative decisions entirely with the photographer, suited to deliberate, considered shooting styles.

Specialty Fisheye Build: Solid construction for a medium format specialty optic, balancing durability with portability in the field.

Lens Specifications — Kiev 30mm f/3.5 Rectangular Fisheye

Kiev 30mm f/3.5 Rectangular Fisheye full specifications
SpecDetail
Use CasesCreative Effects, Landscape
Lens TypeFisheye
FormatMedium Format
Zoom/PrimePrime
Focal Length30mm
Maximum Aperturef/3.5
Camera SystemMedium Format
Lens MountMamiya 645
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight500g

Description — Kiev 30mm f/3.5 Rectangular Fisheye

The Kiev Arsat 30mm f/3.5 Rectangular Fisheye is a Special Effect prime lens purpose-built for medium format photography. Mounted via the Mamiya 645 lens mount, it integrates directly with compatible medium format camera bodies without the need for adapters. Its 30mm focal length places it firmly in the wide-angle category, while the rectangular fisheye projection delivers a visually striking image characteristic that sets it apart from conventional wide-angle or even standard circular fisheye lenses.

With a maximum aperture of f/3.5, the lens allows for a reasonable degree of light control. Operation is entirely manual focus, giving the photographer deliberate, hands-on control over the focus plane. The lens tips the scale at 500g, making it a manageable option for medium format shooters.

No image stabilization is present, and no filter thread size is specified, so users should confirm accessory compatibility independently. This is a lens aimed at photographers who want something genuinely unconventional in their medium format kit.

Pros — Kiev 30mm f/3.5 Rectangular Fisheye

  • ✓Unique rectangular fisheye effect — classified as a Special Effect lens, offering a creative projection style distinct from standard wide-angle optics
  • ✓Mamiya 645 mount compatibility makes it directly usable on a widely adopted medium format camera system
  • ✓30mm focal length provides a genuinely wide-angle perspective in the medium format image circle

Cons — Kiev 30mm f/3.5 Rectangular Fisheye

  • ✗Manual focus only — no autofocus support, which may slow down shooting in fast-moving situations
  • ✗No image stabilization, meaning camera steadiness relies entirely on the photographer or support equipment
  • ✗Filter thread size is not specified, making it uncertain whether standard screw-on filters can be attached

Resources & Downloads — Kiev 30mm f/3.5 Rectangular Fisheye

Manuals & Guides

Frequently Asked Questions — Kiev 30mm f/3.5 Rectangular Fisheye

What camera system is this lens compatible with?+
The Kiev Arsat 30mm f/3.5 is designed for the Mamiya 645 mount, making it compatible with Mamiya 645 medium format cameras. It is classified as a medium format lens and is not intended for 35mm or APS-C systems.
Does this lens support autofocus?+
No, this lens is manual focus only. There is no autofocus capability, so the photographer must adjust focus by hand using the lens's focus ring.
What is the maximum aperture of this lens?+
The maximum aperture is f/3.5. This is the widest opening available on the lens for controlling light intake and depth of field.
Can I use filters with this lens?+
The filter thread size is not specified in the available data, so compatibility with standard screw-on filters is uncertain. It is recommended to verify filter attachment options before purchasing accessories for this lens.
How heavy is the Kiev Arsat 30mm f/3.5?+
The lens weighs 500g. This is a moderate weight for a medium format special effect prime lens.
Does the lens have image stabilization?+
No, the specifications confirm that image stabilization is listed as None. Photographers should use a tripod or other stabilization support if shooting in conditions where camera shake is a concern.