Digital camera accessories

[rhinorick]

I am wanting to purchase an external flash for my Panasonic Lumix DMC-FZ50.

I have no idea what to look for.  Atached unit?  Slave unit?  

I would like one that is flexible - perhaps use on and off the camera.

What do I need to look for as far as distance, direction, etc.?

And what else do I need to look for that I don't know to ask?  

[bdery]

Hi,

there are many, many options out there, it's hard to point to specific units. But here are some pointers.

I'm not sure if your camera has a dedicated flash protocol (like Canon's ETTL or Pentax's P-TTL for instance). If it does (and the manual will tell you) then it will probably be the Four Thirds protocol. These protocols for metering ensure that the metering is done by the camera, and communicated to the flash. Otherwise, the flash will probably meter itself (usually called Auto mode) which can work very well but is not as reliable as dedicated protocols.

Flashes with a swivel head offer more flexibility, since you can orient the light beam, to bounce it on the cieling, for instance.

Some flashes have a red AF assist light, which can be very useful.

Guide number for a flash is (usually) calculated at ISO 100, 50 mm, f1. The guide number is usually mentionned in meters and feet. Sometimes manufacturers will change the values at which guide number is calculated.

Some brands, like Sony/Minolta, have a non-standard connectors pattern on the hotshoe. Most other brands have a regular pattern, at least for the trigger. Make sure you get a flash compatible with your system.

If you want flexibility, a unit that can attach to the hotshoe AND act as a slave will be the best choice.

I hope this helps.

[rhinorick]

Thanks bdery!  

A lot of that is waaaayy over my head at this point.  

I am just learning.  I'll get there.

Sounds like quite a lot to look for.  Good point about looking for one that works on the hot shoe and off.  That is what I was hoping to find.  I didn't know if that was possible.  

Anyone else have any input before I take the plunge?

[ShutterbugGail]

It's many years since I've used an external flash so have not kept up. However, it was recently recommended to me by a pro that if I ever get a flash for my Canon XSi/450D, I should get one made by Canon. In other words get a flash made by the same company that makes the camera to obtain optimal performance. It may cost more but may be worth it in the long run.