Questions & Answers

Name: Sunpak - DF4000U External Flash
Brand: Sunpak
SKU: 5960804
Price: 94.99 USD
Availability: InStock
Rating: 4.5 (977 reviews)

Sunpak - DF4000U External Flash

Model:: DF4000U-CN; |
SKU:: 5960804

User rating, 4.5 out of 5 stars with 977 reviews.

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QuestionWhat is the fastest flash duration; I need 1/20,000 of a sec.
Asked 5 years ago by HW.
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QuestionDoes this work with a Canon T7. I’m finding it hard to find compatible external flashes. Canon dropped the ball not installing the wiring that their earlier and later models have.
Asked 5 years ago by Druid777.
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QuestionThe TTL mode will not turn off. I shot with a canon
Asked 5 years ago by Carli.
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QuestionIs this compatible with a Canon eos 20D?
Asked 5 years ago by Jjarjen.
- Answer This will work with any camera that has a hot mount.
  Answered 5 years ago by Bose
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QuestionCan I pair this with a canon AI flash wirelessly or would I need a trigger?
Asked 5 years ago by pairing.
- Answer This flash does have a built in slave mode and should react accordingly when other flash is activated.
  Answered 5 years ago by Bose
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QuestionWould this work with a Canon AE-1?
Asked 5 years ago by MrGomez.
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QuestionWill this work on the nikon d7000
Asked 5 years ago by Bmwphotos.
- Answer Yes. It will work with any Nikon DSLR.
  Answered 4 years ago by MattK
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QuestionWill this sunpak work on a 7ii Sony?
Asked 5 years ago by William.
- Answer I try this flash on the Sony a7ii. The problem is the flash will not fire for the first shot then 2nd shot will fire. You will lose automatic feature and you have to manual set the flash. I would recommend you to look up Godox TT600 at online. Best Buy doesn’t carry Godox TT600.
  Answered 5 years ago by Sunrise
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QuestionWill this work with a mid 80's Canon AE1 Program?
Asked 5 years ago by MikeT.
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QuestionDoes it work with canon rebel t7?
Asked 5 years ago by Anonymous.
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QuestionWondering if this works for older film cameras - I have a Nikon N2020 35MM that I just broke the flash on. Does this still work with that?
Asked 5 years ago by anym.
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QuestionIs this a auto flash or a manual flash
Asked 5 years ago by Anonymous.
- Answer It is both, for Nikon a d Canon DSLR cameras. It includes manual settings with power varied from 1/1 to 1/128, in third-stop increments. It also includes auto TTL modes for both brands, in which the internal camera light meter of the camera decides the flash power and communicates that to the flash.
  Answered 4 years ago by MattK
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QuestionHello - will this work with a Canon Rebel T2 (not T2i)?
Asked 5 years ago by AeroShot.
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QuestionWill this work with Sony a77?
Asked 5 years ago by Dfad.
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QuestionWill this work with a Sony A7?
Asked 5 years ago by Brucebu1.
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QuestionIs this Flash compatible with Cannon rebel t100
Asked 5 years ago by JayJay.
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QuestionWill this work on a Canon rebel T6?
Asked 5 years ago by KT.
- Answer Yes
  Answered 5 years ago by Salmax
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QuestionDoes it work with the Nikon d3000?
Asked 5 years ago by Frankr96.
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QuestionI have a Nikon D3000 and will it work off camera?
Asked 5 years ago by NikonD3000.
- Answer Yes to both. It will work on your camera in Manual, TTL, and multi-strobe modes. Off-camera it will work with your camera as an optical remote, where the Sunpak will fire when it “sees” another flash firing. Press the left RESET button to scroll through until you see S1 and S2 on the LCD screen. S1 works when your camera flash is on manual and S2 for when your camera flash is on TTL (the default setting on your camera.).
  Answered 4 years ago by MattK
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QuestionWhat is the best trigger/reciever system to use with this? That way u don't have to keep manually changing the power settings. I have a nikon Z 50.
Asked 5 years ago by Phamason.
- Answer For radio triggering with the adjustability you mention, go for Godox X1 transmitter and receivers. If optical will work for you (line of sight to camera,) then the DF4000U flashes can be set up to do this. One DF4000U on camera can control and adjust power on remote DF4000U flashes. My experience is that works well with manual flash power settings, but not as well when or if you want TTL for the remotes.
  Answered 4 years ago by MisterK
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Questions & Answers

Sunpak - DF4000U External Flash

Q: QuestionWhat is the fastest flash duration; I need 1/20,000 of a sec.

Q: QuestionDoes this work with a Canon T7. I’m finding it hard to find compatible external flashes. Canon dropped the ball not installing the wiring that their earlier and later models have.

Q: QuestionThe TTL mode will not turn off. I shot with a canon

Q: QuestionIs this compatible with a Canon eos 20D?

Q: QuestionCan I pair this with a canon AI flash wirelessly or would I need a trigger?

Q: QuestionWould this work with a Canon AE-1?

Q: QuestionWill this work on the nikon d7000

Q: QuestionWill this sunpak work on a 7ii Sony?

Q: QuestionWill this work with a mid 80's Canon AE1 Program?

Q: QuestionDoes it work with canon rebel t7?

Q: QuestionWondering if this works for older film cameras - I have a Nikon N2020 35MM that I just broke the flash on. Does this still work with that?

Q: QuestionIs this a auto flash or a manual flash

Q: QuestionHello - will this work with a Canon Rebel T2 (not T2i)?

Q: QuestionWill this work with Sony a77?

Q: QuestionWill this work with a Sony A7?

Q: QuestionIs this Flash compatible with Cannon rebel t100

Q: QuestionWill this work on a Canon rebel T6?

Q: QuestionDoes it work with the Nikon d3000?

Q: QuestionI have a Nikon D3000 and will it work off camera?

Q: QuestionWhat is the best trigger/reciever system to use with this? That way u don't have to keep manually changing the power settings. I have a nikon Z 50.

Best-selling DSLR flashes

QuestionWhat is the fastest flash duration; I need 1/20,000 of a sec.

QuestionDoes this work with a Canon T7. I’m finding it hard to find compatible external flashes. Canon dropped the ball not installing the wiring that their earlier and later models have.

QuestionThe TTL mode will not turn off. I shot with a canon

QuestionIs this compatible with a Canon eos 20D?

QuestionCan I pair this with a canon AI flash wirelessly or would I need a trigger?

QuestionWould this work with a Canon AE-1?

QuestionWill this work on the nikon d7000

QuestionWill this sunpak work on a 7ii Sony?

QuestionWill this work with a mid 80's Canon AE1 Program?

QuestionDoes it work with canon rebel t7?

QuestionWondering if this works for older film cameras - I have a Nikon N2020 35MM that I just broke the flash on. Does this still work with that?

QuestionIs this a auto flash or a manual flash

QuestionHello - will this work with a Canon Rebel T2 (not T2i)?

QuestionWill this work with Sony a77?

QuestionWill this work with a Sony A7?

QuestionIs this Flash compatible with Cannon rebel t100

QuestionWill this work on a Canon rebel T6?

QuestionDoes it work with the Nikon d3000?

QuestionI have a Nikon D3000 and will it work off camera?

QuestionWhat is the best trigger/reciever system to use with this? That way u don't have to keep manually changing the power settings. I have a nikon Z 50.