Ihave an old Sony Speedlite I dug out of a camera bag I've had stores for over a decade.
It's a Sony HVL-F32X Nothing fancy by todays standards.
I purchased a Canon 7D and am still learning about it.
My shooting camera when I had my studio was a Nikon F4 .
That tells you how long I've been away from the art. Talk about a new learning curve.
I am wondering if the old speedlite will work until I can get one designed for the Canon 7D
I also have a Nikon Speedlight SB-28DX
Any idea where I can go to look up compatability?