Question about Nikon D40 Digital Camera with G-II 18-55mm Lens

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D40 compatability with Sunpak auto 144D flash

I have a Sunpak auto 144 D flash left over from my film days. I've heard that some of the older film flashes will damage the new digital cameras. Any information would be appreciated.

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The voltage on the flash hot shoe contacts (center pin and rail connector) can be as high as 140V DC and this voltage is backfed into the camera through its hotshoe connector. There are adapters that can be bought that isolate this voltage that go between the flash and the camera, but different camera makers have different ratings for the flash voltage. My Vivitar 220 has 122 volts across the contacts from 4 AA batteries! Canon recommends nothing over 6v but Fuji says 60v and others dont say anything. SLR's used a mechanical trigger, modern digi cams use an electronic trigger. Also Digcams use electronic metering for exposure so they dont take into consideration the addition of another flash unless they do a preflash, TTL metering and the flash unit is capable of recharging in about 1/10th second. YOu may have to do some post processing or set the camera on manual to adjust the exposure.

Posted on Jun 13, 2008

  • Colby E Dec 14, 2010

    Sunpak says the trigger voltage on this flash is 6v... the short answer is yes. It's true that this flash will not do TTL/P-TTL, but it never has, and you know how to use it manually already.

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I need a operating manual for Sunpak Auto Thyristor G4500DX Flash gun only


I found this for a Sunpak flash which is similar to the G4500dx:

Reading from the "auto555/G4500DX" Manual, you need to:
1. Slide the Film Selector to desired ISO - (that is the same as your camera ISO used - so, make sure you turn Off the Auto ISO feature if your camera has one).
2. Slide the Mode Selector to "A" (Auto position). This will be Auto Thyristor mode on the flash.
3. Slide the Auto F/stop Selecct Know to desired lens openning - ( so use your camera in Aperture priority mode, more in Manual to prevent changes in the camera aperture value during shooting)
Shoot, and be happy with well exposed pictures by the Auto Thyristor features of the Sunpak 555 flash.
The Sunpak 555 works great with Nikon D50, D70 cameras, as you can synchrinize flash practically at all shutter speeds. Excellent for sunny days to get narrow DOF, yet get any ambient light level contribution as desired.
For other cameras, make sure (watch out for) that Aperture Priority mode does not use shutter faster than the camera max X-sync speed - so Manual camera mode could be a better choice for a novice photographer.
In the manual there is also a list of accessories for various brand cameras, How to use Power Ratio in Manual mode, some advice on using wide lenses, how to care of your 555, and Specification section.
Minimal flash duration is 1/450 at full power, so you can safely use Auto Aperture up to 1/500 sec. Flash duration decreases with lower power setting, or lower auto mode need for poser, and the shortest flash duration is 1/17000th sec.

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Is the Sunpak auto 144 D compatable with my Canon T2i Camera?


This is a yes and no answer. I personally would not use his flash on any of my digital cameras due to not knowing the "Trigger Voltage" one shot out of this could fry the flash circuit board of my camera.
The flash will not TTL or i-TTL with the new flash systems nor will it synchronize properly. However yes you can use this flash as a slave (using a electronic photo cell as a trigger) it will fuse a full burst power and you need to adjust it near or away from the subject to adjust the amount of light. It can prove a real pain but it will flash just not from the camera unless you use a special WEIN accessory to restrict the trigger voltage BUT the WEIN is over $100.00 so why not just get a flash that work with the camera. You would need a Canon EX type flash something like the Canon 420 EX II will be fully compatible with the new T2i.

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1 Answer

Sunpack Compatibilty


ifyour nikon has a hotshoe it should work quite well. I use sunpak flash on both canon and olympus without any problems. Just connect to hotshoe and shoot.

Please rate my help++++Thanks for using FIXYA

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Not compatible.
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hai i think u told only sometime....
may b ur settings are not rit in the cam.

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Sunpak auto 144D flash compatability


Seems to work OK with my Nikon D80

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1 Answer

Flash


becRN,

take the camera to a good camera store and try any in your price range, the manual should state the camera's that are compatible. note that many new model flashes do not work on older camera's.

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