I am new here as I am in Nikon world. I come from a Canon system and now I am finally getting the Nikon I ever dreamed about. I got a FM3A with a 50mm f/1.4 nikkor, and as I am an adventure photographer, serious amateur level, I actually need a speedlight.
Would someone please recommend me a budget one with TTL, for use in outdoors activities? I am a cave explorer, and I am asking for a budget speedlight because the excess umidity of the caves always dammage the eletronoc devices such as flashes.
The most recommended for the FM3 are SB27 and SB 50, but those seem to be very fragile to take under a cave, ans very expensive too.
I have had two Canon flashes completely damaged due to this, and I think it will be a big investment if I have to buy a new speedlighr each time I go caving!
SB50DX will be a good choice. If branding is not a problem to you, I will suggest Vivitar flash series. I previously used Vivitar flash for my F401 several years with very good results. Recently I have purchased several sets for my friends' F90 and F80. All with good results.
Vivitar is compatible with Nikon's ordinary TTL system (the most basic one, not the 2 more advanced ones available to F5, F100 and F90). I don't know whether FM3A havs these all these TTL modes. However, with fraction of a Nikon speedlight, you can't demand much.
Details of the spec can be found from Vivitar web site.