OpticsBench guide: focus, exposure, motion blur and recorded prints
Separate focus from motion smear, balance aperture and shutter, and use actual frozen prints to evaluate OpticsBench photography tasks.
OpticsBench: rules, controls and first steps
Four photography tasks with a viewfinder, aperture ring and shutter dial.
What you play
Tap a subject to focus, balance exposure, depth of field and smear, then press the shutter. Keep the actual live viewfinder image beside up to two frozen prints and their recorded settings. Later dial moves leave old frames unchanged; live preview does not count as a task score. The optional D40 task photographs a static identifier board at 40m: its height must reach 30px on the 320-wide master while meeting the original light and blur limits. A longer lens enlarges the real image; the touch box does not count. The original three tasks keep their rules. The No motion blur badge only describes smear; it does not claim an out-of-focus subject is readable. Portrait and landscape controls; Classic remains in Settings.
Four photography tasks, including an optional distant identifier task. The live viewfinder and frozen prints serve different purposes.
Controls
Tap the subject to focus, adjust the aperture and shutter controls, and press the shutter to record a print. Compare up to two frozen prints.
Your first session
- Read the task’s subject, distance and acceptance conditions before turning the dials.
- Balance exposure, depth of field and motion smear. Focus on the required subject, then take a real shot.
- Inspect the frozen print and its recorded settings. Changing the live dials does not change an old print or score the live preview.
Decisions worth watching
The No motion blur badge describes smear only. An out-of-focus subject may still be unreadable.
For D40, the actual board image must reach the stated pixel height; enlarging the touch target does not count.
Detailed player guide
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