We ran Lincoln's last portrait through a 2026 passport photo check
On February 5, 1865, Alexander Gardner photographed Abraham Lincoln for the last formal time, ten weeks before the assassination. We fed the Library of Congress scan of that portrait into the same measurement pipeline that checks photos on this site. These are the real numbers it returned.
RejectedThe measurements
| Check | Measured | Rule | Result |
|---|---|---|---|
| Background brightness | 131 luminance (0 to 255) | at least 165 for plain white | Fail |
| Colour cast | 49 | under 45 | Fail |
| Background evenness | 12.5 variation | low variation, no patterns or shadows | Pass |
| Lighting balance | 0.5 left-right imbalance | even light on both sides | Pass |
| Colour photo | Monochrome albumen print | colour required | Fail |
| Taken in the last 6 months | Taken February 5, 1865 | within 6 months | Fail |
- Background brightness: The sepia studio backdrop reads as far too dark for the US white or off-white rule.
- Colour cast: The checker detects the sepia tint itself: the channels diverge more than a neutral background allows.
- Background evenness: Gardner's canvas backdrop is impressively uniform for 1865.
- Lighting balance: Better than most modern webcam shots we see. Studio skill has not aged.
- Colour photo: The US spec requires a colour photo, no exceptions for national icons.
- Taken in the last 6 months: Missed by roughly 161 years.
Why this is more than a joke
Every modern AI photo app would happily "fix" this portrait: colourise the print, whiten the backdrop, sharpen the face, and hand back a file that looks compliant. Since January 2026 that fix is itself a rejection reason: the US, UK and Canada reject photos edited with software or AI, and a manipulated visa photo can be treated as misrepresentation. An honest checker has to be able to tell you a photo fails. Lincoln fails, magnificently, and the numbers say exactly why.
Also worth recording: Gardner's lighting balance beat most of the webcam photos we measure today. Stand two feet from a plain wall with even light and you are already doing better than the 19th century. Barely.
Your photo gets the same honest treatment
Same pipeline, same thresholds, current spec for 21 documents across 17 countries. Free to check, pay only if it passes, and we never edit a pixel, yours or Lincoln's.