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SD cards become read-only on insertion
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SD cards become read-only on insertion

One of  the most annoying features on standard SD cards is the write protect tab. This tab often seems to get caught and pushed into the “read only” position when one inserts an SD card into a card reader or camera. Thus rendering the card “read only”. It seems a particular issue with the slots…

Affordable CCT spotlights for the studio
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Affordable CCT spotlights for the studio

I’ve been flirting with affordable LED in the studio for over a decade. And on each experiment, I’ve had change out of fifty quid. My latest sortie involved a pair of these things  They have simple removable diffuser, reducing the need for a soft-box, they’re fairly robust and in addition to being dimmable they also…

Repairing a dead YN565EX II speedlight
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Repairing a dead YN565EX II speedlight

Photographer pal changed the batteries in his dead YN565EX II speedlight flash gun. Unfortunately when he tried to witch it on, it didn’t work. He tried several sets of batteries. No luck. For those not familiar with the device, the Yongnuo YN565EX II is a relatively affordable battery-powered Chinese flash speedlight for both professional and…

Simple street photography
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Simple street photography

My experience of street photography is to make oneself looks as insignificant and unprofessional as possible – which comes rather too naturally to me, TBH! 🙂 Kit should be small, light and ideally somewhat battered looking – a “distressed” look that most of my kit usually acquires after a few weeks’ service. No expensive-looking kit…

USB Type D
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USB Type D

Having all become familiar with USB C, seems the USB Group has just announced an even newer and faster connection standard, to be known as “USB D”. Of course, like all new Universal Serial Bus connectors, it will be completely incompatible with all previous USB standards. To guarantee incompatibility, the new connectors will be circular….

More about my new Ultrastar 20 TB hard disk backup system
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More about my new Ultrastar 20 TB hard disk backup system

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,…

Raspberry Pi Sonos replacement
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Sonos alternative

We’re busy replacing a customer’s ageing Sonos distributed sound system with a Linux Media Server (c/w SAMBA for remaining Sonos kit) c/w these tiny Linux-powered SBCs (single board commuters) as replacements. Granted, this is merely a prototype. This unit us based upon a Raspberry pi 4B c/w 8GiB RAM, a capacitative touchscreen and an external…

BR-9C combined Geiger counter and EMF meter – initial impressions
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BR-9C combined Geiger counter and EMF meter – initial impressions

I just bought a Geiger counter from a seller on AliExpress. Well it’s actually a Geiger counter and EMF (electromagnetic field) meter, all combined into a single device. I have no idea who actually makes these things. There is no branding other than a model number “BR-9C”. Though I did discover that the enclosures used…

Another update: Raspberry π4 for Zoneminder part 3
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Another update: Raspberry π4 for Zoneminder part 3

Raspberry π4 for ZoneMinder Part 1 – Raspberry π4 8GB for Zoneminder Part 2 – Update: Raspberry π4 8GB for Zoneminder Part 3 – Another update: Raspberry π4 for Zoneminder (you are here) My π4 Zoneminder has been running for just over two months. Overall I’m pretty happy with it. The main issue I had…

Update:  Raspberry π4 8GB for Zoneminder part 2
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Update: Raspberry π4 8GB for Zoneminder part 2

Following on from my last article, this is Raspberry π4 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 π because it seems slow and clunky. Basically it seems the current beta ARM64…

Raspberry π4 8GB for Zoneminder
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Raspberry π4 8GB for Zoneminder

This is a overview of my adventures experimenting with a tiny Raspberry π4 8GB for Zoneminder GNU/Linux-based security system. Raspberry π4 for ZoneMinder Part 1 – Raspberry π4 8GB for Zoneminder (you are here) Part 2 – Update: Raspberry π4 8GB for Zoneminder Part 3 – Another update: Raspberry π4 for Zoneminder Background I have…

A surprisingly straightforward studio flash repair
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A surprisingly straightforward studio flash repair

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 £50 per unit,  They…

Clevo N150CU at night running KDE NEeon GNU/Linux c/w modified "Ghost" theme
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Clevo N150CU running GNU/Linux

Seems it’s time to buy another laptop. My trusty old Thinkpad has seen better days. Worse, a company with somewhat ironic name of “PCSpecialist” made a total pig’s breakfast of repairing my new Clevo N141ZU I had purchased from it earlier. “PCSpecialist” also lost my hard disk, then denied having it. And what “PCSpecialist” laughingly…

Ulefone 3w ruggedised smartphone
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Ulefone 3w ruggedised smartphone

I recently purchased an unlocked Chinese Ulefone Armor 3W ruggedised smartphone – c/w Mediatek chipset, 8-core 64-bit CPU, dual unlocked SIM slots, 256GiB TF slot and 10300mAH battery. I have quite a soft-spot for cheap generic Chinese phones. Of course, one has to choose the product quite carefully. You need to ensure your preferred device…