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Kodak 10" (250mm) f/6.3 Wide Field Ektar #5 Universal Synchro Lens

The Kodak 10" (250mm) f/6.3 is a lens from Kodak. Check GearFocus for current availability, with buyer protection on every purchase.

Kodak 10" (250mm) f/6.3 Wide Field Ektar #5 Universal Synchro Lens

Kodak 10" (250mm) f/6.3 Wide Field Ektar #5 Universal Synchro Lens

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Lens Overview — Kodak 10" (250mm) f/6.3

The Kodak Wide Field Ektar is a large format lens manufactured during the 1950s, offering a 10-inch (250mm) focal length at a maximum aperture of f/6.3. Designed for use on technical cameras via a lens board mount, this vintage optic is built around a #5 Universal Synchro leaf shutter, which provides in-lens shutter control — a defining characteristic of large format photography. The leaf shutter also enables flash synchronization through a PC Sync Port, allowing integration with studio and field flash systems.

Compatible with sheet film formats including 4x5, 5x7, and 8x10, this lens covers a broad range of large format film sizes, making it a versatile choice for photographers working across different film backs and cameras. Focus is entirely manual, as expected of a lens from this era. The lens board mount is standard for technical cameras of the period and many contemporary large format systems.

For collectors and working large format photographers alike, the Wide Field Ektar represents a well-regarded piece of mid-century optical engineering with practical usability on compatible systems today.

Key Features — Kodak 10" (250mm) f/6.3

250mm f/6.3 Focal Length: A moderate telephoto perspective for large format work, suitable for portraiture, landscapes, and field photography.

#5 Universal Synchro Shutter: In-lens leaf shutter provides full shutter speed control directly on the lens, as is standard in large format photography.

Wide Field Optical Design: Designed to cover a broad image circle; confirmed coverage extends to 4x5 and 5x7 formats, with 8x10 coverage at reduced performance.

PC Sync Flash Port: Built-in PC sync connection allows use with studio strobes and portable flash units for lit large format work.

Lens Board Mount: Mounts via a standard lens board, compatible with most technical and view cameras of the period and many in use today.

Manual Focus Operation: Focus is set manually via the lens barrel, following the standard workflow for large format photography using a ground glass back.

Lens Specifications — Kodak 10" (250mm) f/6.3

Kodak 10" (250mm) f/6.3 full specifications
SpecDetail
Use CasesLandscape, Architecture, Creative Effects
Lens TypePrime
Lens MountLens Board (Technical Camera)
Focus TypeManual Focus

Description — Kodak 10" (250mm) f/6.3

The Kodak Wide Field Ektar features a 250mm (10-inch) focal length and a maximum aperture of f/6.3, designed specifically for large format sheet film photography. Built during the 1950s, this lens mounts via a standard lens board for use on technical cameras and is equipped with a #5 Universal Synchro leaf shutter that handles both exposure control and flash synchronization. A PC Sync Port is integrated for connecting to compatible flash equipment.

The lens supports 4x5, 5x7, and 8x10 sheet film formats, offering broad coverage across the most common large format film sizes. Manual focus is the only focus method, consistent with large format practice. For photographers shooting on large format systems today, or collectors seeking a well-known mid-century optic, the Wide Field Ektar remains a practically usable and historically significant lens choice.

Pros — Kodak 10" (250mm) f/6.3

  • ✓250mm f/6.3 focal length well-suited for large format work across 4x5, 5x7, and 8x10 sheet film formats
  • ✓#5 Universal Synchro leaf shutter provides in-lens shutter control, a key advantage for large format shooters
  • ✓PC Sync Port flash compatibility enables use with studio and field flash systems

Cons — Kodak 10" (250mm) f/6.3

  • ✗Manual focus only — no autofocus capability, requiring precise technique and focusing aids
  • ✗Lens board mount limits use to compatible technical camera systems; not adaptable to modern mounts without a dedicated board
  • ✗Weight is not specified, making it difficult to assess portability or balance on a field camera

Resources & Downloads — Kodak 10" (250mm) f/6.3

Manuals & Guides

Frequently Asked Questions — Kodak 10" (250mm) f/6.3

What film formats is this lens compatible with?+
The lens is compatible with sheet film formats including 4x5, 5x7, and 8x10. These are the film formats explicitly listed in the specifications under film compatibility.
What type of shutter does this lens use?+
The lens uses a #5 Universal Synchro leaf shutter. This is an in-lens shutter design standard to large format lenses of the era.
Can I use this lens with flash?+
Yes. The lens includes a PC Sync Port, which allows synchronization with compatible flash systems. This is the flash compatibility method specified for this lens.
What camera mount does this lens use?+
The lens mounts via a lens board, which is the standard mounting method for technical large format cameras. It is listed as compatible with large format barrel lenses and technical camera systems.
When was this lens manufactured?+
According to the specifications, the year of manufacture is listed as 1950–1959, placing it firmly in the mid-20th century era of large format optical production.
Is autofocus available on this lens?+
No. The focus type is listed as manual focus only. Users will need to focus using the ground glass of their large format camera, as is standard for lenses of this type and period.

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