I am retired research chemist and amateur photographer. My gear includes the Canon EOS 5Dii and 100D, which are used mainly for landscapes and family portraits.
I've been using Photoshop for years and love Lightroom, but the monthly subscription to CC is a haemorrhage too far.
System Version: OS X 10.10.4 (14E46)
Kernel Version: Darwin 14.4.0
Model Name: iMac
Model Identifier: iMac10,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM101.00CC.B00
SMC Version (system): 1.52f9