MattinSTL
Sound Modulator
If you have a d50 then I would ONLY get the sb-800... or at the very least get the sb-800 first and if you later want another flash then add the sb-600 to that... the sb-800 has all the same functions as the su-800 which is the "commander unit" which you would add to the d50 to give it wireless flash functions... but the sb-800 does everything the su-800 does (watch the "b" and "u"... one is a commander and flash, the other is commander only)... so anyway the sb-800 will command other flashes and also operate as a flash itself at the same time.
Why would you want this? Because the cam can be key or fill and the other flash can be key or fill... and you can set them accordingly... so that you can light a shot intelligently... and easily, thanks to Nikon's CLS lighting system which works fantastically well, by the way!
The sb-600 has no commander functions... so if you get an sb-600 you could always add an sb-800 later and then get the functions... but I would get the big boy out of the way early. Why not? You'll have 2/3 stop more punch... and yes, for an extra $100 I don't consider that to be a premium markup! Why? Because how much does a 2/3 stop faster glass cost? Like 3-10x the price? So that's my take on that...
It's always better to have more light then you need and use less, then use all the light that you have and need more.
Just like my camera choice I was seriously torn on this one... but the sb-800 comes with a couple nice extras in addition to having over 25% more max power... and if it's popping flashes at the same guide number as the sb-600 then it's the same speed... so anytime you hear somebody say that the sb-800 pops flashes slower then the sb-600 (from actual experience) then you'll know that the shots taken with the sb-800 will be better exposed... because at equal power they are equal speed on recycle time.
The other reason 2/3 stop more light matters is hopefully you'll graduate to some improved techniques like shooting flash through a frost gel... or in a flash soft-box... or calculated bounce... and in all those situations flash power is reduced... so it's not like you have excess flash anyway. Talk to any pro and they'll tell you that most dedicated flash units like that already don't have enough power... so what's a hundred bucks? I guarantee when you sell it you'll get a higher percentage of your money back... and if you don't ever sell it then you must have made the right choice. ;-)
Why would you want this? Because the cam can be key or fill and the other flash can be key or fill... and you can set them accordingly... so that you can light a shot intelligently... and easily, thanks to Nikon's CLS lighting system which works fantastically well, by the way!
The sb-600 has no commander functions... so if you get an sb-600 you could always add an sb-800 later and then get the functions... but I would get the big boy out of the way early. Why not? You'll have 2/3 stop more punch... and yes, for an extra $100 I don't consider that to be a premium markup! Why? Because how much does a 2/3 stop faster glass cost? Like 3-10x the price? So that's my take on that...
It's always better to have more light then you need and use less, then use all the light that you have and need more.
Just like my camera choice I was seriously torn on this one... but the sb-800 comes with a couple nice extras in addition to having over 25% more max power... and if it's popping flashes at the same guide number as the sb-600 then it's the same speed... so anytime you hear somebody say that the sb-800 pops flashes slower then the sb-600 (from actual experience) then you'll know that the shots taken with the sb-800 will be better exposed... because at equal power they are equal speed on recycle time.
The other reason 2/3 stop more light matters is hopefully you'll graduate to some improved techniques like shooting flash through a frost gel... or in a flash soft-box... or calculated bounce... and in all those situations flash power is reduced... so it's not like you have excess flash anyway. Talk to any pro and they'll tell you that most dedicated flash units like that already don't have enough power... so what's a hundred bucks? I guarantee when you sell it you'll get a higher percentage of your money back... and if you don't ever sell it then you must have made the right choice. ;-)