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PostPosted: Sun Sep 16, 2012 8:46 pm 

Joined: Tue Aug 31, 2010 8:23 pm
Posts: 126
Hi all
Picked up a Sunpak Auto 26 DX with a NE-2D Nikon mount cheap, i took a carboot gamble....
I guess its manual operation with no TTL metering.
My main question is will it function on the D90 without damaging the body?
It has 4 contacts on the base.
I think ive found a manual for some similar Sunpak models so should be able to work it out to some degree..

PostPosted: Tue Sep 18, 2012 10:04 am 

Joined: Sat Mar 13, 2010 4:53 pm
Posts: 131
I would check it here, the main problem seems to be the trigger voltage.

Here is how to measeure it yourself:



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Canon EF 28-105 f/3.5-4.5 USM; Tamron 18-200mm f/3.5-6.3; Canon EF-S 18-55 IS (broken); Canon EF 50 f/1.8 II; Canon EF 100-400mm f/4.5-5.6 USM L IS; Canon EF 16-35mm f/4.0 USM L IS

PostPosted: Tue Sep 18, 2012 5:47 pm 

Joined: Tue Aug 31, 2010 8:23 pm
Posts: 126
Cheers for the links.
I was aware of the trigger voltage issue, the Sunpak i have here sits at about 5.5V when fully charged.
Also the flash ready pin (turns on the flash LED in the viewfinder) sits at about the same voltage as well.
These older non TTL flashes have different function on the pins compared to modern iTTL Nikons.
Those have a clock and data signals on the same pins..
I think the camera will trigger the flash ok, ive read the D90 and others are good up to 250V.
It was the other pins i was concerned about.
I guess i could insulate the remaining contacts and just leave the center contact for the trigger.
I don't think i'd want to get my fingers near one of those flashes with the higher voltages present on the base. Ive heard some horror stories...

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