For sale is my Nikon SB-20 speedlight/hotshoe flash. It is used; as such; it shows some cosmetic wear from normal use. There is a small piece of plastic missing from the hotshoe attachment, but it still connects and functions perfectly. I used it with great results on my F100. There is a compatibility chart and summary of features at Mir's website: http://www.mir.com.my/rb/photography/hardwares/classics/nikonf4/flash/sb20/index.htm Take a look at the photos and please ask any questions! Price is $25 shipped in CONUS. Payment via Paypal or USPS Money order.