I am in the process of doing a purchase at this time with them,they seem fair,pricing is a little lower,but service is very slow,as is delivery.

I have had a canon and an Epson on the same system for some time with o problems so , you only have to remember to switch back one forth accordingly..

I have been using back button focus for years, started as a way to control shaking hands (a gift of age), now it's the first thing I set up , I mostly shoot with Nikons, but it works on most cameras . Try it ,if you don't like it , just reset to original ...

Sometimes you have to think of it as clearing up the gene pool

I have been using one for a while now and so far it’s been great, makes it easy to carry only a few lens for most jobs