Hi, welcome to justanswer.com! My name is Mike.I am going over your question and will be with you shortly.
I will need some information before we begin:Please go to the Apple logo at the upper left of your computer screen to About This Mac and give me this information:
To start with go here and download and install Digital Camera Software 2.2 [Mac OS X]
A phone call is not as helpful as a remote control session. Let me know
Once you install that software if you Accept the Premium Service offer I can help you by remote control.
You can also transfer pictures using a USB card reader: https://www.amazon.com/Transcend-microSDHC-Reader-TS-RDF5K-Black/dp/B009D79VH4/ref=lp_516872_1_4?s=pc&ie=UTF8&qid=1478897652&sr=1-4 or via WiFi see page 134 of the manual: http://gdlp01.c-wss.com/gds/4/0300010764/01/pssx280hs-cu-en.pdf
Do you want me to remote connect?
Do you still need help?