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Featured in Domain Arrivals · 2026-08-10

FocalMath Puts the Photographer’s Numbers on the Spot

focalmath.com ↗ · Useful Tools · score 84.0
Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content Pretty: notable design, copy, craft, or presentation Pro: polished, finished-feeling, serious, or operationally mature Niche: specific audience, workflow, or unusually focused use case Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A set of five browser-based calculators for depth of field, exposure, astro shutter speeds, crop-factor equivalence, and print size.

Why it surfaced

FocalMath uses a photographer’s actual sensor format, focal length, aperture, subject distance, and even pixel pitch where relevant, rather than serving up a generic reference table. The tools run in the browser, keep inputs local, and produce shareable results—useful field-reference thinking with unusually clear explanations of where familiar rules go wrong.

Ham Is Specifically Discouraged

August 10’s newborn domains include a mock cryptid council that specifically discourages ham, a vintage phone collecting messages for Twyla’s 70th, a 4.5-meter dish measuring Galactic hydrogen at 1420 MHz, and an open index that found 530 sites permitting GPTBot in robots.txt while refusing it at the server.

This is one of 1,000 discoveries in the 2026-08-10 Domain Arrivals issue.