Question re: Sigma 2x tele

Have a Sigma 2x extender.

Also have a Canon 70-200 2.8 (non-IS).

Sigma extender fits the Canon (though my Canon 1.4 doesn't fit my Sigma 70-200 2.8

Any reasons not to use the Sigma on the Canon? (other than normal IQ issues and will lose 2 f-stops). Should it work properly?

Would appreciate hearing from folks that have walked this path before me.

Thanks!

You say you have them both? Why not try it out and see how you like it and if it works for you?

gasrocks wrote in post #8538233
You say you have them both? Why not try it out and see how you like it and if it works for you?

Or read the Teleconvertor FAQ at the top of the Lens forum

GSH wrote in post #8544842
Or read the Teleconvertor FAQ at the top of the Lens forum

LOL

Had never noticed that thread.

But told me everything I wanted to know (plus some).

Thanks!