Nikon SB 20 Speedlight Review
The Nikon SB-20 Speedlight was released in 1986. 30 years later and not only has the flash avoided death from leaking batteries, but it's still usable. I wouldn't purchase one off eBay. The ideal way to pick this flash up would be to get it as a "bonus" item in a lot of camera gear off eBay, or cheaply at a garage sale/thrift store. If I was going to purchase an inexpensive flash I'd rather try to find a deal on a SB-24 or SB-25.
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