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Wein Safe-Sync Hot Shoe to Hot Shoe with PC

BH #WESSHSH • MFR #990-560
Wein Safe-Sync Hot Shoe to Hot Shoe with PC
Key Features
  • Reduces Flash Voltage to 6V
  • Heavy-Duty Threaded PC Connection
  • Can be Used in Tandem
The Wein Safe-Sync Hot Shoe to Hot Shoe regulates and reduces the flash sync voltage of the flash from up to 400V to less than 6V. This is especially important for current automated SLRs or digital cameras when used with older flashes or lighting systems.
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Wein 990-560 Overview

The Wein Safe-Sync Hot Shoe to Hot Shoe regulates and reduces the flash sync voltage of the flash from up to 400V to less than 6V. This is especially important for current automated SLRs or digital cameras when used with older flashes or lighting systems.

This model mounts directly to a camera's hot shoe and provides a hot shoe on top and a PC female flash connection on the side.  You can have a flash connected to the hot shoe and a flash being triggered by the PC female connection-and unlike so many other offerings of this type, both will fire simultaneously from the same signal. The exception to this rule pertains when using 1 or 2 flashes that are already under 5V sync voltage. In this case, the flash or flashes will not fire.

UPC: 750062043155

Wein 990-560 Specs

Packaging Info
Package Weight0.085 lb
Box Dimensions (LxWxH)3.6 x 2.75 x 1.3"

Wein 990-560 Reviews

Does what it is supposed to do.

By John
Rated 5 out of 5
Date: 2021-02-07

This small accessory gives peace of mind using my old Vivitar 285 HV flash and moonlights connected by a cord with modern cameras, both film and digital. The Paramount Cords website has photos of the damage that high voltage flashes can do to the internal contacts of older film cameras, and the effect on digital electronics is well known. One of these is cheaper than ordering a voltage regulated cord from Paramount, especially if you already own the cord.

works well

By Jim
Rated 5 out of 5
Date: 2020-01-14

I am pleased with this product, it allows be to use several of my vintage flashes with my Canon Dslr.

Works with Olympus OM-D EM-5!

By David
Rated 5 out of 5
Date: 2020-01-12

I have struggled for months to get sync from my EM-5 to my studio strobes. Along with a sync cord, this was the solution. Prior to this I was using the EM-5's accessory flash to trigger the strobes in slave mode.

Doesn't  connect/work with my old Sunpak 622 flash

By Daniel
Rated 3 out of 5
Date: 2019-12-08

Looks like I spent money for nothing.

THE real safe Sync-Adapter!

By Tim
Rated 5 out of 5
Date: 2020-09-08

No more worries about using old flashes on my DSLR. The adapter is valuable build out of aluminium and looks very pretty. The best side effect is the test-button on the side. Since the adapter will only fire flashes with a trigger voltage of at least 5V it can be used to test flashes. If a flash is not trigged it's safe for your digital camera, if it's triggered, well better use this adapter. Ordert it from Germany and it took only a week to arrive. Totally pleased!

works great

By Geoffrey
Rated 5 out of 5
Date: 2020-07-05

Safe way to flash with expensive digital cameras. Everything fits as it should and it works just as advertised.

Solution for multiple flash

By Barri
Rated 5 out of 5
Date: 2020-03-31

Yes it's somewhat expensive for it's size...but it's a lot less expensive than a camera repair or worse and don't ask please how I know. If you are unsure of the trigger voltage of your flash units, get one of these. it's lightweight, small and it works, Many digital cameras, and film cameras with electronic circuitry are very prone to damage from older high trigger voltage flash units, This also has a socket for triggering remote units. A darn good product.

Compact and well-built voltage divider for older flash unit

By Bob
Rated 5 out of 5
Date: 2020-03-22

I have two Sunpak Auto 522 flash units along with older studio flash heads. I was using these with my Nikon D600 which can handle up to 250 volts. My flash unit's sync to trigger outputs is 200 volts. Too close for comfort. I measured the voltage at the hot shoe to camera connection and the voltage is approximately 6 volts. Perfect for me. I read some people have had their cameras fried from older flashes so I decided to protect my equipment. I like the test button which assures the unit to flash is operational. Very reliable, easy to use.

See any errors on this page? Let us know



I have one of these that I used with a Nikon coolpix 8700 and an old Vivitar 283 flash. It worked great. But it won't slide into the hot shoe of my Nikon 7100. Why not? Can I safely use my Vivitar 283 with my 7100 if I can get it into the shoe?
Asked by: Anonymous
The Wein Safe-Sync Hot Shoe to Hot Shoe mounts directly into standard hot shoes such as the one on the Nikon D7100. You will safely be able to use the Vivitar 283 with the D7100 using this device.
Answered by: Heather S.
Date published: 2018-08-28


1/ Is this product's trigger voltage safe for my Pentax K10?2/ Will my Vivitar 273 thrystor be safe to use with the Wein product and my K10, and will the flash synchronize with K10 automatic mode?thanks
Asked by: Anonymous
The Wein Safe Sync Hot Shoe to Hot Shoe will allow you use your older flash on top of your Pentax K10. It will reduce the trigger voltage to a safe voltage to use with the camera. As for the mode that the flash would trigger at, that would be dependent on the exposure mode that is set on the camera.
Answered by: Kirk R.
Date published: 2018-08-27


Hi I have a Metz 45 ct1 flash and I would like to use it on my Canon 5d, can I do It ???
Asked by: Anonymous
Yes you can use that with your 5D. You need to use the Safe-Sync and this is the pc/sync cord,Metz Coiled PC Cord for the Metz 45CT-1 Flash - Coiled 3' (91 cm)B&H # ME5520 Mfr # MZ 5520
Answered by: Robert K.
Date published: 2018-08-28

Will this work with a Vivitar 273 or Olympus T32 ...

Will this work with a Vivitar 273 or Olympus T32 and a Olympus OMD EM1 mk2?
Asked by: Keith
This would work with those cameras but not for TTL, you would have to adjust the power manually but it will fire them.
Answered by: Zachariah
Date published: 2021-01-31


Is this product compatible with the Sony A7 mirrorless camera? I'm interested in using it on the A7 for studio photography. Thank you!
Asked by: Anonymous
The Sony Multi-interface shoe is a bit unique compared to other standard ISO shoes used by other brands. This safe sync should fit onto the camera's hot shoe and function, however on occasion there are 3rd party accessories like this which have trouble lining up the center pin for contact to fire. If you purchase this and it does not fit/function well for you, you may return it within 30 days of the original purchase.
Answered by: Yos O.
Date published: 2018-08-28


will this work with a Pixel Straight Sync Cord with 1/4 inch Mono Plug to PC
Asked by: Anonymous
That is a hotshoe adapter and it will work with a male PC sync cord. The other end does not matter.
Answered by: Robert K.
Date published: 2018-08-27


will this work on the Nikon D600?
Asked by: Patti
Yes it does fit all Nikon cameras
Answered by: Suresh B.
Date published: 2018-08-27


I have a Nikon D5200 can I use this with my flashes from my Nikon N65 film camera ???thanks
Asked by: Anonymous
Yes the Wein Safe-Sync Hot Shoe to Hot Shoe will work.
Answered by: Steven C.
Date published: 2018-08-27
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