Welcome to keh.com!
Theme gray image

Mamiya-Sekor 105mm f/3.5 Seiko Lens for TLR, Black {46}

Model #229199
  • $172.00

Select Gear Grade
Our Grading System
New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
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.
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.
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.
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.
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.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
BN Bargain
$172.00
Only 1 left!
Free 180 Day warranty on all purchases
FREE SHIPPING OVER $75 + NO HASSLE 21-DAY RETURNS
Talk with an expert:
1-800-342-5534

Mamiya-Sekor 105mm f/3.5 TLR lens with Seiko shutter.

The 105mm focal length sits in portrait territory on Mamiya's TLR system, giving you a moderate telephoto perspective that flatters faces without the compression of longer glass. The Seiko shutter is built directly into the lens, which is how Mamiya TLR lenses work, each optic carries its own leaf shutter, so flash sync is available at every speed the shutter offers. A 46mm filter thread means standard accessories are easy to source.

This is a lens for photographers committed to the Mamiya twin-lens reflex workflow. The f/3.5 maximum aperture gives you enough light-gathering for indoor natural light work and enough depth-of-field control to isolate a subject on medium format film. Slow down, meter carefully, and this lens rewards the deliberate shooter. For anyone building out a Mamiya TLR kit, the 105mm fills a distinct role that the standard 80mm does not.

Who It's For

Portrait photographers working with Mamiya TLRs will find the 105mm focal length flattering for head-and-shoulder framing at comfortable working distances. Studio and natural light photographers benefit from the leaf shutter's flash sync capability at speed, a practical advantage over focal plane shutter systems. Film photographers shooting medium format who want a dedicated portrait or short telephoto option beyond the standard lens will find this a logical addition. Street or documentary shooters who prefer the waist-level TLR experience get a bit more reach without moving to a longer, slower optic.

Key Features

  • 105mm focal length for portrait-range telephoto on TLR
  • f/3.5 maximum aperture for light gathering and subject separation
  • Seiko leaf shutter integrated into lens barrel
  • Flash sync available at all shutter speeds
  • 46mm filter thread for standard accessories
  • Designed for Mamiya TLR mount system

FAQ

What shutter is built into this lens?
The Seiko shutter is integrated into the lens barrel, which is standard for Mamiya TLR lenses. This means flash sync is available at all shutter speeds the lens offers.
What filter size does the 105mm Sekor take?
46mm filters thread directly onto the front element, making standard accessories straightforward to source.
Is the 105mm a portrait lens for Mamiya TLR?
Yes. At 105mm on a TLR system, you get a moderate telephoto perspective that works well for portraiture without the extreme compression of longer focal lengths.
How does f/3.5 perform for indoor natural light?
The f/3.5 maximum aperture gathers enough light for indoor work on medium format film, and provides sufficient depth-of-field control to separate subjects from the background.
What Mamiya TLR cameras does this lens mount to?
This lens mounts to Mamiya TLR cameras with the Mamiya TLR bayonet mount. It pairs with the corresponding viewfinder lens in the TLR system.
Does this lens replace the standard 80mm Sekor?
No. The 105mm fills a different focal length role in the Mamiya TLR system, providing more reach for subjects where the standard 80mm would require you to step back.
SpecificationValue
Focal Length105mm
Max Aperturef/3.5
MountMamiya TLR

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 46mm
Focus Type Manual focus (only)
Lens Mount Mamiya TLR
Lens Type Standard / Normal
Max Focal Length 105mm
Min Focal Length 105mm