A comparison of chatbots

Which one should you consider using, and why?

At a meeting on 22nd January I gave this short presentation …

Here are some other slides that might be of interest

Depth of field, focal length and hyperfocal distance February 17, 2026
At one-level it’s any easy concept to get your head around; but the more you think about it, the more complicated and confusing it can become. Let’s start with depth of field – how much of your image you want to get in focus. The … Continue readingDepth of field, focal length and hyperfocal distance
Macro Focus Stacking December 18, 2024
I’ve written about Focus stacking before but set with the challenge of doing some macro shots for our local u3a Practical Photography group I thought it a good idea to revisit the technique and refresh my memory at the same time. First it is important … Continue readingMacro Focus Stacking
iPhone session January 16, 2024
I’ve been toying with the idea of more extensive use of my iPhone 14 Pro with its three lenses; and I’d also come across and purchased Halide – a Camera app for the iPhone, along with Spectre – another app from the same stable that … Continue readingiPhone session