Quick Summary
The NEEWER Upgraded NW645II-N TTL Flash Speedlite is a camera flash for Nikon cameras, designed for photographers who want more control over flash lighting. It includes TTL, HSS up to 1/8000s, optical slave mode, stroboscopic flashes, and rear curtain sync, with a guide number of GN58 and a clear LCD screen for settings.
Who It Is Best For
This flash suits Nikon users who want a flexible speedlite for indoor work, event use, or creative lighting setups. It is also a practical choice if you need flash modes that support different shooting conditions and want a unit that can be adjusted in small output steps.
What To Know Before You Buy
The flash output is adjustable from 1 to 1/128 in 1/3 increments, which gives fine control, and it also includes a rear curtain sync mode for motion trail effects. The flash head swivels and rotates for bounce lighting, and the diffusers and reflector are included in the description as part of the light shaping setup.
Pros: Offers several flash modes and adjustable output for more controlled lighting.
Cons: Check your exact Nikon camera model and flash needs before ordering, as fit and use depend on the selected camera.
Common Buyer Questions
Which cameras is this flash for?
It is listed as compatible with a range of Nikon cameras, including D series and Z series models such as D4, D850, Z9, Z6II, Z7II and others named in the title and description.
Does it support TTL?
Yes, the NW645II-N is described as supporting TTL.
Does it support high speed sync?
Yes, it is described as supporting HSS up to 1/8000s.
Can it bounce light?
Yes, the flash head swivels up and down and rotates, which helps with bounce lighting.
Does it include optical slave modes?
Yes, it is described as supporting optical slave control, including S1 and S2 modes.
Key Details
| Detail | What it means in use |
|---|---|
| Model | NW645II-N |
| Flash type | TTL flash speedlite |
| Guide number | GN58, ISO100m |
| High speed sync | Supports HSS up to 1/8000s |
| Flash output range | Adjustable from 1 to 1/128 in 1/3 increments |
| Recycle time | 0.1 to 3.5s |
| Flash duration | 1/300 to 1/20000s |
| Colour temperature | 5600K±200K daylight |
| Compatibility | Compatible with listed Nikon D series and Z series cameras |
Final Buying View
The NEEWER NW645II-N is a feature rich Nikon compatible speedlite with useful control options for flash photography. If you want TTL, HSS, optical slave control, and adjustable flash output in one unit, it is a strong practical choice. Check your camera model against the listed compatibility before ordering.
