Question about Camera Flashes

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Vivitar 636AF Flashgun

An "auto focus illuminator" flash gun by Vivitar. Need schematic to install a shoe for use with Canon cameras. Have checked all my known sources, none have it. Any clues much appreciated.

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I do have the same unit that I am currently using on a EOS 10D. It works fine for me. It lso operates on my EOS 350D but does not flash off quite bright enough on this camera in very low light.The unit was previously paired with a canon EOS 5 film. You can contact me at a.blast@rocketmail.com for required information.

Posted on Apr 05, 2009

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Will it work with my canon rebel xs


You must make sure that the voltage of the flash gun is not too great for the camera if it is then you may damage your camera electrics. Test it using radio triggers off camera.

Dec 18, 2015 | Vivitar Auto Thyristor 2600 Flash Unit 4...

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

Hi my name is Curtis can you tell me IF my Vivitar 283 flash will work on my c-750 Olympus, TTL camera it have an hot shoe,but flash don,t fire. I have talked to Olympus about it(on answer). I took it to a...


No the 283 is not compatible with your camera. The 283 is manual only and not TTl. The canon flash is also not compatible with your Olympus. You need an olympus compatible flash.

Nov 16, 2009 | Vivitar 283 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

Flash Gun Broken can it be fixed


Buy distilled water.

Try to open the flash apart.

Pour distilled water to unit and blow dry or just set it near sunlight until dry.

atdlee@netzero.com

Jul 30, 2008 | Vivitar 283 Flash

3 Answers

Vivitar 3200 Flashgun and Canon EOS 400D


Using Vivitar 3200A flash gun on a DSLR is risky for the following reason. The trigger voltage of a DSLR at flash hot shoe that takes it to its TTL (through the lens) circuit is less than 10 volts, it is about 6 to 8 volts in the recent DSLRs. The trigger voltage generated by Vivitar 3200A at full charge flashing is around 180 volts (max). That is a fatal dose for a sensitive DSLR TTL circuit. This high voltage flash gun will work endlessly, the only damage is to the TTL flash circuit. When you attach a TTL flash to the DSLR after using Vivitar 3200A for sometime, your TTL flash will not communicate with your camera. It will be just another ordinary flash without any auto functions. There is a Wein adapter that you can fix b/w your cameral hot shoe and the vivitar flash gun that is said to reduce the trigger voltage that passes into the camera. Try it if you get it. Without this gadget it is better not to use non recommended and non TTL flashes on latest DSLRs.

Apr 13, 2008 | Camera Flashes

2 Answers

Vivatar 283 and Nikon D70s


The Vivitar 283 was manufactured in China & Japan over a number of years & the specifications did change over this period.

The older Vivitar flashes had a voltage on the shoe which could reach 150 volts whilst the later ones had voltages of only 5 to 9 volts.

If you have, or can get hold of, a small voltmeter then you can measure this voltage.
Turn on your flash & let the unit charge up to 'ready' & connect the meter between the contact in the centre of the shoe & the little contact tucked away in the lip of the shoe. (DC volts not AC) There is no danger to you in doing this!
This should tell the voltage on the shoe of your unit & if it is 15 volts or less, it will be fine with your digital Nikon camera. If more than 15 volts than best not to use it.

Hope this is of some help!

Mar 10, 2008 | Vivitar 283 Flash

3 Answers

Will a Vivitar 285HV fry my Canon EOS 40D? I'd like to experiment with a Vivitar 285HV as an on-camera hot shoe flash. However, I'm reluctant to proceed because of conflicting reports about voltage...


Personally, I would not try it. While the Canon has a protection system built into the camera, the trigger voltage on the Vivitar is pretty high. I have had good results using a 283 on a slave shoe, you will have to stop down more with the extra light

Jan 08, 2008 | Vivitar 285HV Flash

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