My blog has moved!

A couple of years ago I wrote a blog post pondering why I have a web site. At that time I had a blog on Google’s “” platform and a hand-crafted web site hosted elsewhere. My hosting company had recently increased its prices a lot, which prompted me to ask why I have a web … Read more

Hungarian sour cherry soup revisited

Five years ago I wrote about my first attempt to make Hungarian sour cherry soup. My recipe has evolved a little since then, so I thought it might be useful to record the current version. Serves 2.

Why have I got a web site?

You might already know that I have my own web site It’s a modest affair and I don’t update it very often – the last change to the main page was in November 2015. Recently my web hosting provider withdrew the “lite” package I was using and migrated me to another package, at more … Read more

Digital photograph vignetting revisited

A few years ago I wrote about some experiments I’d done with measuring and correcting vignetting in digital photographs. (Some cameras have such correction built in, called “peripheral illumination correction” or similar.) I recently purchased a second-hand 10-18 mm wide angle lens for my DSLR. Measuring its vignetting using my previous method is difficult as … Read more

Shaun the Sheep

I’m a huge fan of the Aardman Animation children’s TV series “Shaun the Sheep”. Although it’s nominally a children’s programme there is a lot in it for adults as well. I particularly like the references to things that not many children would be aware of. Here are a few that I’ve spotted. I’ll add more … Read more

Oxbridge entrance – a modest proposal

There has been some talk recently about apparent bias in the way Oxford and Cambridge universities select undergraduate students, disproportionately favouring (white) students from fee-paying schools. The universities respond, with some justification, that they accept anyone who gets top grades at A level and performs well at interview, and it’s not their fault if state … Read more

Samyang 500mm ƒ/6.3 DX mirror lens

Long focal length lenses for SLR cameras are mostly one of two types – refractors (true lenses) or “mirror” lenses (actually Cassegrain telescopes). Large aperture long lenses are big, heavy, and expensive, but they can perform really well. Mirror lenses are much smaller, lighter, and usually a lot cheaper. However they are fixed aperture, usually … Read more