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Use Nikon speedlight sb-25 with a digital camera

Eric Kim , Apr 04, 2006; 11:12 a.m.

What is the sync voltage of Nikon speedlight sb-25 which was manufactured in 1992?

I used it with Nikon F4 and am considering to use it with a digital camera. Is it safe to use sb-25 with a digital camera, or do I need to use a flash sync voltage reducer/regulator?

What is a good sync voltage reducer/regulator? Is Wein regulator good at B&H?


Eric Friedemann , Apr 04, 2006; 11:28 a.m.

Posting the same question twice is a photo.net no-no. That having been said, the sync voltage of the SB-25 is less than four volts, which is even lower than the sync voltage of Nikon's DX flashes. So, the SB-25 would be safe for use on Nikon DSLRs:


Michael R. Freeman , Apr 04, 2006; 04:05 p.m.

ANY Nikon speedlight is safe on ANY Nikon camera - doesn't matter if it is 35mm, APS or digital.

But ... the SB-25 is not the BEST option for a digital camera, as it will not work in TTL mode on ANY Nikon DSLR. AUTO and M modes only. But you already have it, so you might as well use it.

Adam Maas , Apr 04, 2006; 05:23 p.m.

Actually, there are some Speedlites that are not safe, but they're all single-digit models from the 60's and 70's. Any Speedlight from the SB-16 on should be fine.

The SB-25 will work just fine in Auto thyristor mode on a DSLR (this is how I used my SB-24 with various DSLR's) but you'll lose TTL. The only real issue this gives is that the Auto- thyristor sensor doesn't like Sto-Fen Omni-Bounces.

Joe Margetts , Apr 04, 2006; 06:23 p.m.

I often use a pre digital SB-28 on my D70. No problem, follow the instructions and take advantage of the trial and error possibilities of digital. Used maunally, bracket a bit and you can get great results.

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