Keeping up with technology

I have recently bought a new camera. This takes such enormous photos that I had to upgrade my photo processing software. It won't be long before I have to get a whole new PC, but in the meantime I am slowly getting my head around what I can do now, which I couldn't do before.

One of my prize possessions in a wide angle lens, which takes in vast panoramas at a short distance. The trouble is, it distorts the image: straight lines become curved, parallel lines converge. Like this photo of Bishop Schneider saying the Pontifical Mass at the Downside Priest Training Conference:


But I now have the technology to correct this effect:


I have more options to correct the colours as well. But I still have a great deal to learn!