LensID Physical Reference Card Deck
A laminated pocket-sized card deck (like a playing card set) with 52 lens classification cards. Each card shows a focal length range on one side, the lens category name on the other, plus a visual focal-length-to-angle-of-view diagram. Users flip through to instantly match a lens's focal length to its category without calculation. Cards are organized by mount type (Canon EF, Sony E, Nikon F, etc.) in separate mini-decks.
15 weeks • 70% confidence
Value Proposition
Instant, offline, tactile reference that works in any lighting condition, requires no app, no internet, no memorization. Faster than pulling out a phone. Becomes a desk/bag essential because it's physical and always accessible.
Target Audience
Photography students, used-gear buyers, rental shop staff, photography teachers, camera store employees
Key Features
- 52-card deck organized by mount type (5 separate mini-decks available)
- Front: focal length range + visual cone-of-view diagram; Back: category name + use cases
- Laminated, water-resistant, fits in camera bag or shirt pocket
- And more, with full implementation detail...
Tech Stack
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Sign up freeOriginal Problem
Photographers struggle to quickly classify lenses without memorizing technical specificationsPhotography enthusiasts and professionals frequently need to determine lens categories (wide-angle, macro, standard, telephoto) but lack a simple mathematical framework to do so. They either memorize focal length ranges or rely on manufacturer labels, which creates friction when evaluating used equipment, comparing lenses across brands, or teaching others. Current solutions require domain knowledge or manual lookup rather than a universal formula.
Score: 17.5%