where to locate high speed flash synchronizing option in Nikon D7100 camera. please give me your suggestion.
thanking you sir,
I'm a Canon guy, so I don't know the Nikon set-up from experience.
Try these:
http://darrellyoung.blogspot.com/2011/10/understanding-your-nikons-flash-sync.html
https://www.youtube.com/watch?v=Xi3_7ppJu6w
https://www.flickr.com/groups/nikond7100/discuss/72157633442972150/
Good Luck!
Have Fun!