* Item pictured for illustrative purposes only, actual item not pictured. See ‘Notes’ next to grade for included items.
Mamiya Sekor C 80mm f/2.8 Manual Focus Lens for 645 {58}
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$315.00
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KEH Certified™ pre-owned gear, expertly inspected†
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All rental gear is between Excellent and Like New Minus condition
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Standard accessories included
Mamiya's 80mm f/2.8 workhorse for 645 medium format shooting
The 80mm focal length on a 645 body sits in roughly the same visual territory as a 50mm on full frame, making this the natural choice for a standard lens. At f/2.8, you get enough light-gathering for indoor portrait work and controlled environments without a tripod, and the depth of field characteristics that medium format delivers at that aperture are distinctly different from what 35mm systems produce at equivalent settings. The 58mm filter thread keeps your polarizer and ND kit reasonably priced and easy to source.
Manual focus on medium format is not a limitation here, it's the native language of the Mamiya 645 system. The focus ring on the Sekor C gives deliberate control that suits slower, methodical shooting. Studio photographers and anyone working with a tethered setup will feel right at home. For the 645 shooter building out a kit, the 80mm f/2.8 is the lens you reach for first and most often.
Who It's For
Portrait photographers shooting in studio or natural light get the bread-and-butter focal length of the 645 system at f/2.8, wide enough for subject separation on medium format film or a digital back. Documentary and editorial shooters who want the tonal richness of medium format without the weight of a 6x7 rig will find the 645 format and this lens a workable field combination. Film photographers building a Mamiya 645 kit around a single versatile lens will find the 80mm covers the widest range of subject matter before reaching for anything else.
Key Features
- 80mm standard focal length for 645 medium format
- f/2.8 maximum aperture for controlled indoor and studio work
- Manual focus with deliberate, tactile control
- 58mm filter thread for common circular filters
- Mamiya 645 mount for all compatible 645 bodies
- Sekor C multi-coated optics
- Compact form factor for handheld or tripod-mounted shooting
FAQ
- What focal length equivalent is 80mm on a 645 body?
- On 645 medium format, 80mm behaves like a standard lens, roughly equivalent to a 50mm on full frame. It's your workhorse focal length for portraits, environmental shots, and general-purpose shooting.
- Is f/2.8 fast enough for indoor work without a tripod?
- Yes. f/2.8 gathers enough light for handheld indoor portrait work and controlled environments. Medium format depth of field at f/2.8 gives you the shallow-focus characteristics 35mm shooters chase at wider apertures.
- What filter size does this lens use?
- 58mm. That's a common thread size, so your polarizer and ND filters are easy to source and reasonably priced across brands.
- Does manual focus feel like a limitation on this system?
- No. Manual focus is how 645 medium format works. The Sekor C's focus ring gives deliberate control that suits methodical shooting - studio work, tethered setups, and considered composition all benefit from it.
- Should this be my first 645 lens?
- Almost certainly. The 80mm is the natural standard lens for the system. It's the lens you'll reach for most often and first when building out a 645 kit.
- What's the optical construction of this lens?
- The Sekor C designation means it's the later C-series version of Mamiya's 645 lenses, featuring multi-coated optics and refined mechanical design compared to earlier versions.
| Specification | Value |
|---|---|
| Focal Length | 80mm |
| Max Aperture | f/2.8 |
| Mount | Mamiya 645 |
This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.
| Brand Name | Mamiya |
|---|---|
| Filter Size | 58mm |
| Focus Type | Manual focus (only) |
| Lens Mount | Mamiya M645 |
| Lens Type | Standard / Normal |
| Max Focal Length | 80mm |
| Min Focal Length | 80mm |
Learn what to expect from each condition, cosmetically. Images are representative of each grade and may not show the exact item you receive. All equipment is guaranteed to work as intended, unless otherwise noted. We also occasionally offer items that fall .
Exceptions
- New
- New in box complete with manufacturer's USA warranty. Not previously owned or used.
- Like New
- Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
- As Is
- Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
Like New Minus
Like New Minus
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Excellent Plus
Excellent Plus
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Excellent
Excellent
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Bargain
Bargain
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Ugly
Ugly
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
