Hey, first of all I wanted to say hello as I am new here.
I have not long just taken delivery of my first Canon SLR and am very pleased with it.
I have a question that I am hoping someone will know the answer to.
I may have just made a boo boo - I have just won on ebay the canon extender x2 (Mark 1 I would think) and was planning to using it with my Canon EF 75-300 f/4-5.6 IS USM lens but I am wondering if it will work?
I would appreciate any advise
Thank you.

