Best Flash for Leica Q3
The Leica Q3 has no pop-up. The shoe has extra contacts for Leica units. The instruction book names the conversation: TTL is available with Leica system flashes like the SF 40, or Profoto. A center-pin gun will fire; the camera will not drive it. The electronic shutter will not fire a flash at all. The mechanical central shutter already syncs to 1/2000 s — Leica only switches to “TTL linear / HSS” if you undercut that time. The 2026 on-camera kit is the SF 40: GN 40, bounce, the compact on Leica’s own TTL list. It is not a Godox “for Leica” mini sold for 1/8000 HSS on a leaf-shutter body that stops at 1/2000.
Our Top Picks at a Glance
Reviewed August 2026 · Leica Q3 · no pop-up · SF 40 TTL · central shutter 1/2000 · e-shutter = no flash
Named in the Q3 book. TTL + bounce. GN 40 @ 105 mm. ~200 g on a 743 g body. Not the SF 60 tax.
Check Price at Amazon Read full review ↓Center-pin on this shoe. Bounce head, 2× AA. You set power. The 2.4 GHz radio is not Q3 TTL.
Check Price at Amazon Read full review ↓GN 12, calculator dial, 2× AAA. Same center-pin rules. Leaf shutter still syncs at 1/2000 — drop power, do not buy HSS.
Check Price at Amazon Read full review ↓Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.
Comparison Table
| Product | Best for | Talk to Q3 | Power / size | Price | Buy |
|---|---|---|---|---|---|
| Leica SF 40 | Default Q3 TTL | System TTL (named) | GN 40 · 4× AA · ~200 g · bounce | ~$400–$500 | Check |
| Godox TT350 | Manual bounce | Center pin | GN ~36 · 2× AA · bounce | ~$70–$90 | Check |
| Godox Lux Junior | 28 mm dial / look | Center pin · flash-side A | GN 12 · 2× AAA · 130 g | ~$45–$65 | Check |
| Leica SF 60 | Skip as default | TTL listed · FEC on gun | GN 60 · ~300 g | $500+ | Check |
| Godox iT30Pro L | Skip as Q3 TTL | Not the book’s list | Mini · HSS 1/8000 sticker | ~$90–$130 | Check |
How We Picked These Flashes
- What Leica published: Q3 technical specification: no built-in flash. ISO accessory shoe with extra contacts for Leica flash units. Sync 1/2000 s, slower speeds available; automatic changeover to TTL linear flash mode with HSS-compatible Leica system units if sync time is undercut. TTL metering: center-weighted pre-flash with SF 26, SF 40, SF 58, SF 60, SF 64, system-compatible units, and SF C1. FEC printed for SF 40 (±2 EV, ½-stop) and SF 60 (±2 EV, ⅓-stop). Mechanical central shutter 120 s–1/2000 s; electronic 1 s–1/16000 s. Instruction book: “The electronic shutter function does not allow flash photography.” Compatible Flash Units: full functions including TTL only with Leica system units like the SF 40, or Profoto; center-pin units can be safely fired but cannot be controlled; incompatible units may cause irreparable damage. Serial exposures and automatic bracketing with flash are not available. Studio / RF: flash duration or radio delay may want slower than 1/200 s. Modes: Automatic, Manual (fill), long-term sync (other modes cap shutter at 1/30 s; long-term allows to 30 s). Sync point Start / End of Exposure (factory End). Shutter Speed Limit (Flash): Auto or 1/2000 down to 1/2. Camera FEC only on guns that cannot set their own (e.g. SF 26); SF 58 / SF 60 ignore the camera scale. Switch camera and flash off to mount. Keep the shoe cover on when empty. 743 g with battery. Continuous with flash: off.
- 1/2000 s is already the sync; HSS is not why you buy: A leaf / central shutter has no focal-plane slit. You fill at noon by setting 1/500–1/2000 on the mechanical shutter and dropping power — Fstoppers ran a Godox AD200 in manual at 1/1000 on this body with no HSS. Leica’s HSS line is a fallback when you undercut 1/2000. The electronic shutter, which is how you get to 1/16000, does not allow flash. Do not buy a 1/8000 sticker for a camera that will not fire the tube in e-shutter. TTL is the SF 40 sentence in the book, not a Godox L-foot that Leica did not list. Center-pin is the third-party path Leica already described.
- The box you actually buy: SF 40 (Leica 14624) for on-camera TTL and bounce. TT350 (any single-pin / “universal” listing — not a Canon/Nikon TTL foot you expect to meter) for bounce you set yourself. Lux Junior for GN 12 and the dial. Skip SF 60 unless you already own it and want GN 60. Skip iT30Pro L as the automation pick. Skip Profoto A10 + Connect Pro as the default on-camera tax. Leave electronic shutter off when the gun is on.
Best Flash for Leica Q3: Detailed Reviews
Leica SF 40 View on Amazon View on B&H
| Model | Leica SF 40 (14624) |
|---|---|
| On Q3 | TTL + camera flash modes · bounce 0–90° · 180°/360° swivel · 24–105 mm zoom · 16 mm panel |
| Power | GN 40 ISO 100 @ 105 mm · 4× AA · ~0.1–4 s recycle · ~200 g empty |
| FEC | On the flash: ±2 EV in ½-stop. Camera FEC scale is for units like SF 26 |
| Buy this listing | SF 40. Not SF 60. Not a Nissin i40 “it is the same” without a Leica foot |
Why it fits the Q3. Leica did not put a flash in the Q3 carton. They put extra shoe contacts and then wrote “system units like the SF 40.” That is the pairing: pre-flash TTL, bounce off a ceiling the 28 mm Summilux will see, GN 40 when you zoom the head, 200 g on a 743 g body instead of the SF 60’s extra height. Daylight fill is 1/1000–1/2000 on the mechanical shutter, not an HSS tax. Set TTL on the gun, Automatic or Manual (fill) in the Q3 menu, End of Exposure if you want the factory trail. Format is not a card problem; the shoe cover is — extra contacts stay clean when the foot is empty. Serial shooting stays off. That is a body limit.
Skip this if you will only ever set power yourself — TT350. Skip SF 60 unless GN 40 is actually short.
- The system flash the Q3 book used as the example
- Bounce on a compact that people actually carry
- 1/2000 s leaf sync without buying HSS
- Leica tax vs a center-pin TT350
- 4× AA, not a Li-ion pack
- HSS on the box is unused at 1/2000 mechanical
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Godox TT350 View on Amazon View on B&H
| Model | Godox TT350 (single-pin / “universal” — not a Canon TTL conversation) |
|---|---|
| On Q3 | Fires. No camera TTL. Mechanical shutter only. You pick 1/128–1/1 |
| Bounce | Tilt and swivel — the reason this is Value over a Lux Junior |
| Radio | 2.4 GHz Godox X as master/slave to other Godox heads. Not Q3 TTL. XPro II-L is a different purchase |
| SKU trap | TT350C / N / S sold as “will TTL on Leica.” iT30Pro L sold as the compact TTL twin |
Why it is Value. Leica already wrote the third-party rule: center pin, safe to fire, no camera control. TT350 is that gun with a bounce head the SF 40 also has, at a fraction of the receipt. You set power; the leaf shutter still syncs at 1/2000. NiMH AA, not the BP-SCL6. The old version of this page sold the TT350 as a “gateway” to off-camera TTL via XPro II-L. Godox’s printed L-trigger list was S / SL / M10 / Q2 / CL. Do not buy a $70 speedlight because a $130 trigger might meter later. Buy it because it bounces and pops.
Skip this if TTL is the point — SF 40. Skip if you want the calculator face — Lux Junior.
- Bounce without SF 40 money
- Center-pin path Leica called safe
- Own cells — spare the SCL6
- No TTL, no camera FEC
- 2.4 GHz is not a Q3 conversation
- You must remember e-shutter = no pop
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Godox Lux Junior View on Amazon View on B&H
| Model | Godox Lux Junior |
|---|---|
| On Q3 | Center pin. Flash-side Auto is not Leica TTL. Sync at 1/2000 mechanical |
| Coverage | Fixed 28 mm — the Summilux’s native view |
| Buy this listing | Lux Junior. Not Lux Senior. Not a vintage Vivitar with unknown trigger voltage |
| Price note | Often next to a small TT350, not always under it. Budget here is “look + dial” |
Why it is Budget. The Q3 is a 28 mm compact people buy for the dials. Lux Junior is the matching toy: GN 12, a printed calculator, AAA cells. Same legal path as TT350 — center pin, you set power, mechanical shutter. The old page was right that 1/2000 s leaf sync is the trick, and wrong if that read as HSS. Godox “A” on the gun is a flash-side auto thyristor. Use it as a manual. Skip vintage high-voltage feet; Leica already warned that incompatible units can kill the shoe.
Skip this if you want bounce — TT350. Skip if TTL is the point — SF 40.
- GN 12, seven recorded steps
- 28 mm face matches the lens
- 130 g, own cells
- No bounce
- Often not cheaper than a used TT350
- Flash-side A is not SF 40 TTL
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If You Need Something Else
Leica also listed the SF 60. Godox will sell you an L-foot mini. One is a bigger TTL gun. One is not the book’s list.
Leica SF 60 View on Amazon View on B&H
| Q3 spec list | TTL yes (with SF 26 / 40 / 58 / 60 / 64) |
|---|---|
| On this compact | GN 60 · zoom 24–200 mm · LED video light · ~300 g · camera FEC disabled |
| HSS | On the box. Unused at 1/2000 mechanical. E-shutter still will not fire flash |
| What to buy instead | SF 40 for on-camera TTL. TT350 for cheap bounce |
If you already own an SF 60 from an SL or Q2, put it on. Do not buy it as the Q3 default. The extra GN is real. The extra height on a 743 g compact is also real. Camera flash-compensation has no effect — set ±2 EV on the gun. That is the book, not a reviewer’s preference.
Skip this as the default if the SF 40’s GN 40 and bounce already cover the job.
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Godox iT30Pro L View on Amazon View on B&H
| What the box sells | TTL / HSS 1/8000 / X system for Leica |
|---|---|
| What Leica printed | TTL with system units like the SF 40, or Profoto. Incompatible units may damage the camera |
| Field reports | Some Q3 bodies meter after a firmware pass. Some do not sync at all. That is not a pairing |
A Leica-foot Godox is a real product. The Q3 book did not name it. HSS to 1/8000 is the wrong reason on a leaf shutter that already syncs at 1/2000 and refuses flash in e-shutter. If you want a small manual pop, Lux Junior or iM30 is the center-pin path Leica already called safe.
Skip this if the camera is a Q3 and you want the TTL sentence in the manual. Buy SF 40.
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Frequently Asked Questions
Does the Q3 have a built-in flash?
No. The carton does not include a CF D. You buy a shoe unit.
Can I use flash with the electronic shutter?
No. Leica: the electronic shutter function does not allow flash photography. Stay mechanical. That shutter already reaches 1/2000 s.
Do I need HSS for daylight fill?
Not at or under 1/2000 s. The leaf shutter syncs there in one pulse. Leica only switches to TTL linear / HSS if you undercut that time. E-shutter (1/16000) still will not fire a flash.
Will a Godox TTL flash work?
Leica: center-pin units fire and are not camera-controlled. Full TTL is SF 40 / other listed system units / Profoto. An L-foot Godox is not on that sentence. Incompatible shoes can damage the camera.
Why won’t burst work with flash?
Leica turned serial exposures and automatic bracketing off when a flash is in use. That is a body limit, not a weak SF 40.
Final Verdict
For a Leica Q3, buy the SF 40 if you want the TTL sentence in the instruction book. Want bounce without that receipt? TT350, center pin, mechanical shutter. Want the calculator face? Lux Junior. Skip SF 60 as the default. Skip Godox L-foot minis sold for 1/8000 HSS. Leave the electronic shutter off. The shoe has extra contacts. The SF 40 is the compact they were for.