This's my first post, though I've been following this site for the past few months.
I tried to shoot a subject in extremely low light (in almost total darkness) with N80 and SB50DX in off-camera slave mode. I shot about 7-8 frames, some in P mode and others in A mode. I set the camera on a tripod and manually focussed on the subject. And to my disappointment all the shots are underexposed, infact all the slides are completely dark. I did see the flash firing.
However, I've got good exposures when I used SB50DX on camera in the same lighting conditions. Can someone please help me know what's wrong? Thanks a bunch.
Your camera has no way of knowing there is going to be a SB-50DX on a side. It "thinks" it has to light the subject with only it's own little built-in flash, when shooting in Matrix Balanced TTL. In order to get the exact exposure in this mode, that built-in flash produces a series of (almost invisible) light bursts which pre-fire the slave out of sync. Plus, obviously the combination of ISO speed and distance is not favorable (enough) for what you are shooting. Cure: Std TTL (no pre-flashes), higher ISO speed film, SB-50DX closer to your subject than the camera itself. Have a great time JRP (Nikonian at the north-eastern Mexican desert) My profile Previous photographic journey, before Nikonians: A Brief Love Story
Apology for my post. Meerkat is not a rude creature by nature.
I'm in kind of shaky mood, looking back what happened in the world and record-breaking market plunge.
As to the subject, it is well-replied.
In additon, in case SB 50 is placed not around main flash light path or blocked by some objects, sb50 need to set to manual-flash slave mode to increase sensor sensitivity, but this comes to a weak point of the flash, it can only fire in full power in manual mode.
#5. "RE: underexposure with N80 and SB50DX offcamera" | In response to Reply # 0
Sun 23-Sep-01 10:41 PM
just to add to jrp's reply.. it could definately been caused by the monitor Pre-Flash of the N80 ( I have one too). From what I understand the only way to not have the on camera flash do the monitor -pre-flash is to set it to Spot Meter (or Manual).. I bought a SB50 and was not happy with the results.. I returned it and bought a SB28, I like the results, lately just using SB28 on TTL as a bounce flash....