Set FOCUS MODE to MANUAL FOCUS, set MF ASSIST to FOCUS PEAK HIGHLIGHT, and turn the front ring of the kit lens. Peaking outlines whatever is in focus, so you can work on the screen without magnifying and losing your framing.
front ring = focus rear ring = power zoom peaking
The two rings on your kit lens
The XC15-45mm has two separate rings, which most owners never realise. The narrow front ring is focus; the wider rear ring is the power zoom. Neither is mechanically connected to the optics — both are electronic servos, so they feel unlike a traditional lens, and what the front ring does depends on the focus mode you are in.
Do not read the distance scale
Fujifilm states that because of how this lens is constructed, the on-screen distance indicator may differ from the actual focus distance and should be used as a guide only. Do not attempt hyperfocal focusing by scale reading with this lens — use peaking on a real edge instead.
When manual focus is the right answer
| Situation | Why autofocus struggles | Approach |
|---|---|---|
| Night sky and stars | Nothing with enough contrast to lock onto | MF, focus ring to infinity, magnify on a bright star, peaking on |
| Through glass or a fence | The camera focuses on the glass or the wire | MF, or place a single point on the subject through a gap |
| Very close close-ups | Depth of field is millimetres; AF hunts | MF and move the camera, not the ring, to fine-tune |
| Low-contrast walls, fog, plain sky | No edge to detect | MF, or focus on something at the same distance and recompose in AF-S |
| Repeated identical framing | AF re-decides every frame | Focus once in MF and leave it — perfect for a tripod still life |
The assists worth turning on
- MF ASSIST = FOCUS PEAK HIGHLIGHT. Sharp edges get outlined. Practical on a screen in daylight, unlike a magnified view.
- FOCUS CHECK. Magnifies automatically when you turn the focus ring, which is ideal on a tripod and irritating handheld — turn it on for deliberate work only.
- INSTANT AF. With FOCUS MODE on MANUAL, a press of the AEL/AFL button snaps autofocus once, then hands control back to you. The fastest way to get close and then fine-tune by hand.
Assignment: focus by hand, in daylight
Set MF and peaking. Photograph a friend at 45 mm, f/5.6, from about 1.3 m, focusing on the near eye by hand — five frames, resetting the ring between each. Check at 100 percent how many you actually nailed. Then do the same five frames with AF-S plus eye detection. The point is not that manual wins; it is that you now know what the peaking outline means when it lands on an eyelash, and you will trust it at 2 a.m. under the stars.