
Question by : What are some of the best external flashes to use for high speed photography with nikon D7000?
I am getting an external flash for some high speed photography and strobe pictures, I use a Nikon D7000, What are some of the best flashes to use for both things?
Best answer:
Answer by MVB
Get yourself a new SB-900 and don’t waste another minute thinking about anything else. You won’t be sorry. This model replaces the now-obsolete SB-800 which sells for nearly as much on eBay.
If you get a 3rd-party flash you’ll be giving up both Command mode and high-speed sync — not worth the sacrifice at any price.

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Actually I’m going to offer you a contrary view to MVB. Yes, you can spend £320 or so on an SB900 and get off camera flash control including TTL (auto flash metering) and high speed sync with your D7000 – but the trigger is still an optical (IR) signal, and they can be a bit unreliable, especially if you will be shooting outdoors, or at odd angles (it’s line of sight only).
The alternative is to go for a cheaper manual flash – a YN560 will cost about £40 and will have the same spec (in terms of output and zoom head options) as an SB800. It can be used on camera in manual mode (you set the flash power manually (it goes from 1/1 (full) down to 1/128 power). Or you can get a set of radio triggers (I recommend RF602′s) for about £20 which will enable you to use it off camera. As the trigger is radio not optical, the range & reliability is greater & it can even trigger through walls!
I have a Nikon D300 and I started off with branded Nikon flashes – but I ended up using them almost exclusively in manual mode. I then bought radio triggers & added to my flash collection with Yongnuo units (YN460-II and the YN560) – my radio triggers work seamlessly with both the Nikon and the Yongnuo units and also trigger my studio strobes. You can save yourself a fortune by using non-branded gear (money that can then be spent on light stands or modifiers).
A good resource for off camera flash is the Strobist blog;
http://strobist.blogspot.com/2006/03/lighting-101.html
This is a swim shoot I did using 2 YN560′s with RF602 triggers;
http://www.youtube.com/watch?v=f2krz58XfUw
Edit: do bear in mind that for high speed photography, it’s usually the flash duration that freezes motion, NOT the shutter speed. Unless you use high speed sync, you cannot go above the camera’s sync speed with flash (that’s usually around 1/200 sec shutter speed). High speed sync will allow higher shutter speeds, but at a great loss of flash power (ie it will need to be very close), as the flash is pulsed across the shutter curtain rather than firing in a single pop.