Fujifilm X100S Manual Focus

The Fujifilm X100S is a premium digital camera featuring a 16.3MP APS-C X-Trans CMOS II sensor, hybrid viewfinder, and advanced manual focus capabilities. The manual focus system includes focus peaking, digital split image, and traditional focus scale for precise control. Below are key sections for manual focus operation, features, settings, techniques, and troubleshooting.

1. Manual Focus Overview 2. Focus Modes 3. Focus Assistance Tools 4. Focus Ring Operation 5. Custom Settings 6. Viewfinder Focus 7. Macro Focus 8. Focus Lock Techniques 9. Common Issues 10. Advanced Tips

Manual Focus Overview

Key components: Focus ring on lens barrel, AF/MF switch, Focus assist buttons, EVF/LCD display.

Feature	Description
Focus Ring	Manual focus control on lens barrel
AF/MF Switch	Toggle between auto and manual focus modes
Focus Peaking	Highlights in-focus areas with colored outlines
Digital Split Image	Traditional split-prism focusing aid
Focus Scale	Distance scale displayed on screen/viewfinder
AF-L Button	Auto focus lock function
MF Assist	Magnifies image for precise focusing
Focus Check	Automatic magnification when focusing
Peaking Color	Selectable colors for focus peaking (WHITE/RED/BLUE)
Focus Priority	Release priority settings for manual focus

Focus Modes

Switch between focus modes using AF/MF selector and menu settings.

Single AF (AF-S): For stationary subjects, focus locks when shutter half-pressed.
Continuous AF (AF-C): Tracks moving subjects, continuous adjustment.
Manual Focus (MF): Full manual control using focus ring.
AF+MF: Auto focus with manual fine-tuning capability.

NOTE! Ensure AF/MF switch is properly set to avoid focus errors.

Focus Assistance Tools

Access focus aids through SHOOTING MENU > MF ASSIST.

Focus Peaking: Enable/disable and select color (WHITE/RED/BLUE).
Digital Split Image: Traditional split-prism display for precise focus.
Focus Check: Automatic magnification when rotating focus ring.
MF Distance Indicator: Shows focus distance scale on display.
Peaking Level: Adjust intensity of focus peaking highlights.

TIP! Use focus peaking for general subjects, digital split image for high-contrast edges.

Focus Ring Operation

Rotation Direction: Clockwise for infinity, counter-clockwise for close focus.
Focus Throw: Approximately 120° rotation from closest to infinity.
Hard Stops: Physical stops at minimum and maximum focus distances.
Focus Scale: Distance markers (feet/meters) visible in MF mode.
Macro Range: Special focus range from 10cm to 2m when macro enabled.

Custom Settings

Access custom functions via SET-UP menu for personalized manual focus experience.

MF ASSIST: Focus Peaking (ON/OFF), Peaking Color (WHITE/RED/BLUE), Peaking Level (HIGH/LOW). FOCUS CHECK: ON/OFF, Duration (1.5s/3s/OFF). AF+MF: Enable/disable manual focus override. FOCUS RING: Linear/Non-linear response. AE/AF LOCK: Customize button functions for focus lock.

Viewfinder Focus

Use both optical and electronic viewfinders for manual focusing.

OVF: Frame lines show actual field of view; use focus scale and distance estimation.
EVF: Real-time display with focus aids (peaking, split image, magnification).
Focus Priority: Ensure subject is in focus before shutter release.
Parallax Correction: Automatic adjustment in OVF for close focusing.

Tip: EVF provides most accurate focus confirmation with live view aids.

Macro Focus

Macro mode enables close focusing from 10cm to 2m.

Enable Macro: Press macro button or select in menu.
Focus Range: 10cm to 2m (normal mode: 50cm to infinity).
Focus Assistance: Magnification and peaking work in macro mode.
Depth of Field: Very shallow; use smaller apertures (f/8-f/16) for more depth.
OVF Correction: Automatic parallax adjustment for close subjects.

WARNING! Do not force focus ring at minimum distance; lens may hit internal stops.

Focus Lock Techniques

Use AF-L button and other methods to lock focus position.

Common Issues

Symptom	Possible Cause	Corrective Action
Focus ring not responding	AF mode active	Switch AF/MF lever to MF position
Peaking not visible	Disabled in menu	Enable MF ASSIST > FOCUS PEAKING
Split image not aligning	Low contrast subject	Use high-contrast edges; switch to peaking
Focus scale inaccurate	Lens calibration	Use AF fine tune or manual calibration
Macro not focusing close	Macro mode off	Press macro button; ensure distance >10cm

Reset: SET-UP > RESET > FOCUS SETTINGS if available.

Advanced Tips

Zone Focusing: Pre-set focus distance using scale for street photography. Hyperfocal Distance: Use distance scale for maximum depth of field. Focus Bracketing: Take multiple shots at different focus distances. Back Button Focus: Assign AF-L button for separate focus control.

Service: Contact Fujifilm support for lens calibration or repair.