Some of the questions that readers have asked over the years.
I don’t quite know how I managed it but my personal/business dataset has now grown to around 17 Terrabytes. Most of it is spread across multiple smaller disks. This is becoming increasingly difficult to manage. In fact, we are decommissioning our 4TB drives. This is partly because they are well beyond recommended end of life,…
Due to its construction, ours is quite a difficult house for “whole house Wi-Fi” due to its solid internal dividing walls, downstairs and upstairs. In fact, my first DIY job when we moved in here, back in 2012, was to run Cat 5e Ethernet cables to every room that we were likely to use a…
JPEG (Joint Photographic Experts Group) format for images has served us well for nearly three decades. But is is essentially a 1990’s format. Today we have better ways of compressing images. The most popular currently is Google’s WEBP (Web Picture) Format. Many modern websites use WebP as its default format for uploaded images that it…
“I want to move to Linux, so where do I start?” or variants thereof, is one of those frequently asked questions that often land in my in-box and on various fora. Such questions usually come from disgruntled Microsoft Windows users who are fed up with the cost, the privacy breaches, the malware infections and the…
These days almost all digital cameras offer excellent light metering, The old fashioned “light meter” has become a “thing of the past” to a large extent. Nevertheless they do still have their uses. For those still wishing to flirt with light meters but who don’t want to fork-out to the ÂŁ100 or so that a…
How do I calculate the kWH on my studio flash heads? Do I use 300 watts of electricity each time I fire them?
One of the problems with modern life is the plethora of plug-in mains adaptors or “wall warts” as they call them on the other side of “The Pond”. Aside from the mess of wires, and the fact that often they are plugged into multi-gang power sockets an heaped on top of one another, building up…
I belong to several online photography fora. One of the questions that repeatedly pops up is “what image editing software do you use?” and “what alternatives are there to Adobe Photoshop/Lightroom?” In this article, I hope to demonstrate that high quality image processing is perfectly possible using FOSS (free open source software). I will also…
Just occasionally here in Britain we design and produce a product that is so simple, versatile and completely brilliant one wonders why no one thought of it before. The humble Benbo Trekker camera tripod is one such design. Whilst those expensive black plastic (aka “carbon fibre”) things everyone seems to be talking about look pretty…
I had a pretty grim time recently trying to fix a “Flatpak public key error” on Ubuntu 20.04 LTS. Well KDE Neon to be more precise, but it’s underlying operating system is Ubuntu. I had been attempting a “user” mode installation of an application via Flatpak with no success. I installed Flatpak in the normal…
I recently purchased a new 20 TB Ultrastar hard disk that UK supplier Scan Computers has on special offer. The Ultrastar range is descended from IBM/Hitachi’s DeskStar series, has a five year warranty and it is considered a high-end high-spec product, intended for heavy server and NAS use. It is a helium filled disk and…
I really like my Ulefone 3w ruggedised smartphone. But it is a bit of a “paving slab” to hold in one’s hand. Which makes it a tad awkward to use as a camera. So I looked around for a solution. i.e a well-made and solidly-built holder for my ruggedised smartphone, that would not break the…
“Is a smartphone a substitute for a proper camera?” was an interesting question, posed on a photographic forum to which I belong . It certainly got me thinking… Firstly, I think there is a certain element of “using the right tool for the job” here. An analogy if I may: one can (un)do most screws…
The GNU/Linux family of operating systems (e.g. Debian, Fedora, KDE Neon, Kubuntu, LinuxMint, Red Hat, Ubuntu, Xubuntu et al) are not permitted to use the UNIX trademark. Instead, they are described as “unix-like“. In fact, the “GNU” in GNU/Linux (c/w the “G” in GIMP) is a recursive acronym meaning GNU’s not Unix. In a nutshell,…
Here are a few snaps taken as we installed Weather Station Aercus Weathersleuth WH24 External Sensor Cluster. It really needed to be up as high as possible, yet reasonably easy to maintain. It also needed to be clear of obstructions. Well, as clear as our postage-stamp sized backyard will allow. The only viable place was…
Raspberry Ď€4 for ZoneMinder Part 1 – Raspberry Ď€4 8GB for Zoneminder Part 2 – Update: Raspberry Ď€4 8GB for Zoneminder Part 3 – Another update: Raspberry Ď€4 for Zoneminder (you are here) My Ď€4 Zoneminder has been running for just over two months. Overall I’m pretty happy with it. The main issue I had…
There are many ways to break an SD slot, but a surprisingly common one is to jam a tiny piece of plastic it it that has snapped off from a damaged SD card. The tiny plastic dividers between an CD card’s contacts can snap off. I’ve had quite several cards do that over the years….
I’m a fairly keen amateur photographer. Over the years, I have collected quite an assortment of vintage lenses, filters and other bits and bobs. I have also encountered quite a few sticky filters. However, I can honestly say that I have never destroyed a filter by attempting to remove it. Having the correct tool helps…
Following on from my last article, this is Raspberry Ď€4 8GB for Zoneminder part 2. Now I have had time to set it up and test it for a while. Firstly, I decided to abandon the ARM64 version of Ubuntu on Ď€ because it seems slow and clunky. Basically it seems the current beta ARM64…
This is a overview of my adventures experimenting with a tiny Raspberry Ď€4 8GB for Zoneminder GNU/Linux-based security system. Raspberry Ď€4 for ZoneMinder Part 1 – Raspberry Ď€4 8GB for Zoneminder (you are here) Part 2 – Update: Raspberry Ď€4 8GB for Zoneminder Part 3 – Another update: Raspberry Ď€4 for Zoneminder Background I have…
Folks considering remote shooting via smartphone may wish to experiment with Pavel Khlebovich’s “IP Webcam”. Basically it’s an amazingly clever and full-featured app that allows you to control the camera(s) on your smartphone with a remote computer, using standard internet protocols. https://play.google.com/store/apps/details?id=com.pas.webcam I initially got into it because it plays nicely with Zoneminder. Thus any…
Back in 2015 I bought 3 pairs of studio flash heads (one pair 400 joule, one pair 360 joule and one pair 200 joule). They were supplied as bargain bundles, complete with stands, brollies etc. via sellers on eBay. They were quite a bargain. Each flash head worked out at approximately ÂŁ50 per unit, They…
Our Floureon pan tilt and zoom external IP camera has shipped a bit of water. It lives on the south west corner of the building and gets battered by the strong south westerly prevailing winds we have here. So I took it off the wall this morning and dismantled it on my work bench. General…
Some of my favourite computers require no PSU, no batteries, no RAM, no disks, no upgrades and they are 100% resistant to all known malware. No, I’m not talking about some newfangled Linux. I’m talking about good old fashioned sliderules. 🙂 Sliderules top to bottom… Top: Darmstadt 304. Despite its German-sounding name, this sliderule was…
Discussion came up on a forum to which I belong whether it is better to use NAS (network attached storage) or external hard drives for backup. My answer is why not use both? Effectively I have three NAS servers. One is a media server. The others are purely backup – though they can quickly be…
