Seiko Epson
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The Epson R-D1 is the first digital rangefinder camera on the market, introduced in 2004. The Epson R-D1 supports Leica M mount and Leica M39 mount lenses with an adapter ring. The Epson R-D1 has a sensor smaller than the standard 35 mm film frame, giving lenses a narrower field of view by a factor of 1.53.[1]
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| R-D1s | — | 2006 | Cheaper version with identical hardware | en.wikipedia.org[1] |
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The following facts about the R-D1 are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
Fewer than 3 independently cited specifications for the R-D1 are on record; the remainder await public documentation.
Answerable by: an OEM datasheet, a cleanroom equipment inventory, or an engineer who operated or installed it
The control-system platform and OS era of the R-D1 are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the R-D1 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the R-D1 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the R-D1 are on record.
Answerable by: an OEM parts catalog or a service engineer
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Last updated Sep 24, 2026.