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Manual Focus Accuracy Certification & Calibration Service

A mail-in or local-studio service where photographers send their 5D body + lens kit, and a technician performs optical bench testing to verify manual focus accuracy, identifies which lenses have micro-focus issues, and provides a detailed report with lens-specific focus-assist recommendations (e.g., diopter adjustment, specific screen upgrades, or focusing technique). Includes optional on-site training for studio photographers.

SERVICE

17 weeks • 70% confidence

Value Proposition

Eliminates costly trial-and-error and client complaints from soft focus; provides objective, third-party verification that focus is accurate; identifies which lenses need repair or adjustment; costs $150–$300 per body+kit vs. $2,000+ in lost client work from focus errors.

Target Audience

Professional photographers (wedding, fashion, product, studio) who shoot manual focus regularly and need confidence that their focus is accurate; rental houses and studios managing large lens inventories.

Key Features

  • Optical bench testing against ISO 12233 focus accuracy standard
  • Lens-by-lens focus accuracy report (front-focus, back-focus, or accurate)
  • Diopter prescription recommendation based on user's eyesight
  • And more, with full implementation detail...

Tech Stack

Optical bench access (partner with local repair shop or lab) Excel, Airtable, or custom database for test data management PDF report generation (Adobe InDesign or Canva template) Google Forms or Typeform for intake
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Original Problem

Professional photographers struggle to achieve precise manual focus with Canon EOS 5Ds due to inadequate stock focusing screens

Professional and serious amateur photographers using the Canon EOS 5Ds cannot achieve reliable manual focus for critical work like studio photography, macro, and video because the camera's standard focusing screen lacks adequate magnification and clarity. Third-party focusing screen options are limited, expensive, and require technical installation expertise, forcing photographers to either accept focus accuracy issues or invest in workarounds that eat into project budgets.

Score: 17.5%