Question about Sunpak Auto 555 TTL Flash

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Sunpack 555 inconsistantly fires with Pentax K20

The flash is connected via a dedicated sync cord to the hot shoe.. I also tried the ac type cord with the same result of when the ready light glows it will fire but only after you press the shutter 2 or three times. This is most often after the flash has just been fired but again I do wait 2 or three seconds and the light is on.

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Your strobe is faulty and needs repair at a trained service center. The actual culprit may be the voltage converter circuit that supplies the high voltage to the flash capacitor, or the voltage divider that drives the ready lamp and, at the same time, makes triggering possible.

Posted on Feb 18, 2009

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1 Answer

TTL Flash compatable with pentax K-7


To let a flash work in TTL mode the camera and flash must be from or made for the same brand. Like Metz for Nikon, the Through The Lens measuring of the light, will only work with Nikon camera's. If the Vivitar 850 was compatible with Nikon, you only can use it in TTL mode with a Nikon. If you want to use it on another camera, you have to set the flash and the camera to manual. (sync speed is not allowed to be shorter tan the manual of the camera says..)
The hot shoe should have the same connection. most brands do have their own hot shoe. And never use an old flash or speed light in a digital camera, because with the old ones the high voltage can pass through the hot shoe to the electronics in the camera, damaging the camera.

Jul 13, 2014 | Vivitar 850AF for Nikon TTL Flash

1 Answer

I have a Sunpack 544, but am missing the flash synchro cord 5' catalog #651-782, Where can I get one?


Paramount manufactures every kind of sync cords for virtually any camera and flash: paramountcords.com

Mar 15, 2014 | Sunpak Auto 544 Flash

2 Answers

Will sunpak 622 flash work with Nikon 5200?


You will need a "Hot shoe to PC connection adapter" to connect the PC sync cord to your camera

Dot Line Nikon Hot Shoe to PC Connection Adapter

Jan 29, 2014 | Sunpak 622 Super Pro TTL Flash

1 Answer

Using a Sunpak 555 with Cybersync transmitters with a canon 40D off camera and getting inconsistent firing


did you find a solution? ive experienced a similiar problem. i think i might need to buy new flashes.

Aug 13, 2012 | Sunpak Auto 555 TTL Flash

1 Answer

Can I use Speedlight SB-50DX with Canon EOS Rebel Xti


It is not possible to use the Nikon SB-50DX directly on a Canon EOS Rebel camera. The Nikon flash gun hot shoe contacts do not match the Canon hot shoe contacts.
You can use the Nikon as a slave flash gun with a PC flash cord that matches the Nikon's flash contacts then connect the end of this flash cord to a flash trigger. The Canon's flash can then trigger the Nikon flash gun via the flash trigger.

Dec 27, 2011 | Nikon Speedlight SB-50DX TTL Flash

1 Answer

Vivitar 285 HV won't fire


If you know basic soldering, Open the old hot shoe from base
(4 screws).Note down the position of the wires.
Try to fire the flash with shorting two trigger wires,most ly it will fire.
If the springy contact is adjustable do it.If it is not repairable, you can get metal hot shoe from ebay easily.
Caution: metal hot shoe will short circuit 4 TTL contacts (on digital camera) ,so you need to put cello tape at bottom of hot shoe with only center hole.
Hope this solves.

May 12, 2009 | Vivitar 285HV Flash

1 Answer

Switch from film to digital cameras.


I also own a Vivitar 285 that i used with my Canon F1 manual 35mm camera. Most older cameras before the advent of digital, had a hot shoe on top of the camera, or like in my case, the hot shoe went over the rewind knob. I also had to plug in a power cord from the 285 flash foot and the cameras PC connection in order for the flash to work on some other cameras. The Canon Rebel XTi has a TTL (through the lens) hot shoe usable with Canon's own EX flash units. You can buy a "hot shoe to PC connector" if the TTL camera hot shoe doesn't work, but be extremely careful, the only problem that exists with the older manual flash units was the trigger voltage is as high as 200+volts which would fry digital camera hot shoes. I tried my unit with a Wein flash trigger device on the PC cord of the flash and my Canon D60 with it's own flash. All shots were overexposed and washed out highlights.  Here's a copy of the hot-shoe review:h The EOS 400D's hot-shoe can be used with Canon and third party flashes (although sync only on most third party units). The hot-shoe is E-TTL II compatible. Compatible flashes include Speedlite 220EX, 380EX, 420EX, 430EX, 550EX, 580EX, Macro-Ring Lite, MR-14EX, Macro Twin Lite MT-24EX and Speedlite Transmitter ST-E2.  The Canon Rebel XTi doesn't have a PC socket to plug in a manual flash trigger cord which common sense tells me there is no provision to step up the voltage to trigger manual flashes - so my answer is this combination is not a good idea on a Canon Rebel XTi. Hope this helps.

Dec 12, 2008 | Vivitar 283 Flash

1 Answer

Sunpak 383 problem


Try to trigger it by shorting Center of shoe mount and the side terminal with a small wire.If it is firing the flash is ok.
If not there is open connection in the sync jack ,due to repeated inserting of sync chord.The springy part inside is not going back to its normal position.
You can fix it your self by opening it(adapter only)
.If you are new to this take a photo of the wiring immediately after opening the shoe adapter to see the position if any wire breaks later on.
Do not give up .383 is great flash

Nov 05, 2008 | Sunpak 383 Super Flash

1 Answer

Sunpak ring flash problem


I had a DX-12R for some time several years ago until it was stolen. I loved it. I recently purchased a used 8R and it is fine but I still like the 12R better. Especially the preview light feature. Ok. Make sure the batteries are all good, one bad apple does spoil the whole bunch. Check your cord connections and finally make sure the hot shoe connection is clean. That last one was usually the culprit when I had problems. Note that your hot shoe on your camera could also be going bad. I had a Ricoh that did that, I thought it was the flash. Good luck.

Jun 10, 2008 | Sunpak DX-8R TTL Ring Light Flash

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