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C.P. Goerz 6.5 inch (165mm) f/8 Dagor Lens

The C.P. Goerz 6.5 inch (165mm) f/8 is a lens from C.P. Goerz. Check GearFocus for current availability, with buyer protection on every purchase.

C.P. Goerz 6.5 inch (165mm) f/8 Dagor Lens

C.P. Goerz 6.5 inch (165mm) f/8 Dagor Lens

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Lens Overview — C.P. Goerz 6.5 inch (165mm) f/8

The C.P. Goerz 6.5 inch (165mm) f/8 Dagor is a vintage large format lens manufactured prior to 1950, representing a piece of photographic history from one of the most respected optical houses of the era. Designed for large format sheet film systems, this lens operates at a maximum aperture of f/8 and covers a focal length of 165mm (6.5 inches).

It is compatible with sheet film formats including 4x5, 5x7, and 8x10, making it a versatile option for large format photographers working across a range of film sizes. The lens mounts via a barrel configuration consistent with large format barrel lens systems and requires manual focus operation, as is standard for vintage large format glass of this period. The shutter type is listed as 'Other,' which is typical for pre-1950 lenses that may have been fitted with period-appropriate shutters or used in barrel-only configurations.

Flash compatibility is listed as none. This lens appeals to film photographers, wet plate practitioners, and large format enthusiasts seeking a classic optical character with historical significance. Its pre-1950 manufacture date places it among the most storied eras of optical design.

Key Features — C.P. Goerz 6.5 inch (165mm) f/8

165mm f/8 Dagor Design: The classic Dagor (Double Anastigmat Goerz) optical formula delivers sharp, even coverage with characterful rendering prized by large format photographers.

Large Format Coverage: A 165mm Dagor at f/8 has an image circle typically covering 4x5 and 5x7 formats; coverage of 8x10 at full aperture is not confirmed and should be verified against the specific sample.

Pre-1950 Manufacture: Produced before 1950 by C.P. Goerz, one of the most respected optical manufacturers of the early photographic era.

Barrel Lens Configuration: Designed for use in a barrel mount, compatible with large format barrel lens systems and adaptable to various lensboard configurations.

Manual Focus Operation: Requires manual focus as standard for vintage large format glass, offering full and deliberate control over the focusing process.

Wet Plate Compatible: The optical design and coverage make it well-suited for wet plate collodion and alternative process photography alongside conventional sheet film.

Lens Specifications — C.P. Goerz 6.5 inch (165mm) f/8

C.P. Goerz 6.5 inch (165mm) f/8 full specifications
SpecDetail
Use CasesPortrait, Landscape, Architecture
Lens MountLens Board (Technical Camera)
Focus TypeManual Focus

Description — C.P. Goerz 6.5 inch (165mm) f/8

The C.P. Goerz Dagor is a large format lens with a focal length of 165mm (6.5 inches) and a maximum aperture of f/8, manufactured pre-1950. It is designed for use with large format sheet film systems and is listed as compatible with 4x5, 5x7, and 8x10 film formats.

The lens operates via manual focus and uses a barrel-style mount classified under large format barrel lens compatibility. The shutter type is listed as Other, and flash compatibility is none. With its vintage classification and historical manufacture date, this lens is aimed at large format film photographers, collectors, and those seeking classic optical tools for sheet film work.

Mount type is listed as Other, so buyers should confirm compatibility with their specific camera system or lensboard configuration prior to purchase.

Pros — C.P. Goerz 6.5 inch (165mm) f/8

  • ✓Covers a wide range of large format film sizes, including 4x5, 5x7, and 8x10 sheet film
  • ✓165mm (6.5 inch) focal length offers a versatile working length for large format work
  • ✓Maximum aperture of f/8 is well-suited to large format shooting conditions

Cons — C.P. Goerz 6.5 inch (165mm) f/8

  • ✗Maximum aperture of f/8 limits shooting in lower light conditions without additional exposure compensation
  • ✗Manual focus only — no autofocus capability of any kind
  • ✗Flash compatibility is listed as none, limiting supplemental lighting options

Resources & Downloads — C.P. Goerz 6.5 inch (165mm) f/8

Manuals & Guides

Frequently Asked Questions — C.P. Goerz 6.5 inch (165mm) f/8

What film formats is this lens compatible with?+
According to the specifications, this lens is compatible with sheet film formats including 4x5, 5x7, and 8x10. It is designed for large format sheet film use.
What is the maximum aperture of this lens?+
The lens has a maximum aperture of f/8. This is the widest aperture available on this optic.
Does this lens support autofocus?+
No. The lens is manual focus only, which is consistent with its classification as a pre-1950 large format lens.
What mount does this lens use?+
The mount is listed as 'Other' under the large format barrel lens compatibility category. Buyers should verify fitment with their specific large format camera or lensboard before purchasing.
Can I use flash with this lens?+
Flash compatibility is listed as none in the specifications. Photographers requiring flash or supplemental lighting should plan accordingly.
When was this lens manufactured?+
The year of manufacture is listed as pre-1950, placing this lens among the earlier era of C.P. Goerz optical production.

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