Using AI for Image Captioning

July 8th, 2025

One of the things I find that takes quite a long time is writing captions for my images. So I decided to see if AI could be used to do this for me. (Short answer is no).

Using AI for Image Captioning

(Above image was AI generated in Photoshop using the prompt An AI writing a caption for a photo).

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5 ultraviolet flashlights compared

June 5th, 2025

Recently I purchased a couple of cheap 365nm flashlights (or torches as we call them here in the UK) from AliExpress. I was rather dubious as to how well they'd work, but they were cheap enough it wouldn't be a big loss if they turned out to be useless. I was also encouraged by them selling both 365nm and 390nm versions - surely they wouldn't both actually be visible light, as otherwise why would they offer the two versions?

5 ultraviolet flashlights compared

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Protective glasses for ultraviolet photography

May 28th, 2025

It is recommended to use UV blocking eyeware when doing reflected ultraviolet photography with light sources that output UV at a greater intensity than natural sunlight. In this test I'll be comparing the UVA blocking of UVEX Super OTG (Over The Glasses) safety glasses, my normal eyeglasses that I wear all the time, and a cheap pair of Cycling / Sports glasses.

Protective glasses for ultraviolet photography

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Flash comparison for Ultraviolet close-up photography

May 24th, 2025

In this post I'll be testing a few different flashes for close-up UV photography. We'll be looking at:

Flash comparison for Ultraviolet close-up photography

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ISO invariance – is ISO just metadata?

May 6th, 2025

A look at whether the claim that ISO is just metadata is true or not. Testing pushing low ISO exposures to match high ISOs and vice versa with RAW photos, and testing video with log gamma curves. [...]


Canon RF 28mm vs SK Xenon-E 28mm for false colour infrared photography and video

April 26th, 2025

Comparison of the Schneider-Kreuznach Xenon-Emerald 28mm f/2.8 lens and Canon RF 28mm f/2.8 lens for false colour infrared photography. [...]


Taking normal photos with a full spectrum converted camera – IR Cut Filters compared

April 13th, 2025

Comparison of various IR cut filters to allow you to take standard visible light images on a full spectrum camera. Looking at colour, green-cyan vignetting on wide-angles, and flare. [...]


Comparison of White Balance Targets for IR and UV Photography or Video

February 24th, 2025

In this post I'll be looking at various different white balance targets and seeing how they compare when doing an in-camera white balance for infrared photography or video. (Only actually looking at stills but if you can get the in-camera white balance set correctly for stills then it will work for video too). I'll be […] [...]


IR hotspot correction

January 11th, 2025

How to correct a diffuse infrared hotspot in various software - Lightroom Classic, RawTherapee, CornerFix, Adobe Camera RAW (ACR), and DaVinci Resolve / Studio. [...]


DIY Cheap CFExpress Type B card

January 1st, 2025

A guide on how to use a cheap M.2 NVME to CFExpress Type B card adapter with a cheap NVMe drive for a low cost fast CFExpress memory card that is far cheaper than commercially available cards. [...]