StingPhotography · free photography reference

Photography, by the numbers.

Calculators and a searchable database of 1,850 cameras, 1,000 lenses, 800 film stocks, golden-hour times for 650 cities and field guides for 608 species — every figure computed from published specs and physics.

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Latest articles

Are Rechargeable Batteries Good for a Flash

Rechargeable batteries are the industry standard for camera flashes, offering faster recycling times and lower long-term costs than disposable alkaline cells.

5 min read

Best Flashes for Indoor Bounce Lighting

High-powered flashes with 360-degree swivel heads work best for indoor bounce lighting. Look for a guide number of at least 60 meters at ISO 100.

6 min read

Using Vintage Flashes on Digital Cameras Safely

Yes, you can use vintage flashes on modern digital cameras, but you must verify the trigger voltage first to avoid damaging your camera's sensitive circuits.

6 min read

Open data, transparent math

Specifications are merged from 14 public sources — Wikipedia, Wikidata, Lensfun, openMVG, GeoNames, iNaturalist, ExifTool and more — then every derived number (crop factor, depth of field, NPF rule, print size, sun position) is calculated with documented formulas. How we calculate · All sources

7,051pages
1,850cameras
1,000lenses
650cities
14open sources