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Canon RF 16, 28, 35, 50mm lenses tested for Infrared and Ultraviolet photography

November 14th, 2025

A look at how the Canon RF 16mm f/2.8, 28mm f/2.8, 35mm f/1.8 IS Macro, and 50mm f/1.8 lenses work for infrared, false colour infrared, and ultraviolet photography. [...]

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Last updated by Dave Kennard

PTFE White balance targets for Ultraviolet Photography

September 5th, 2025

Comparison of 3mm thick PTFE and thin PTFE on various backing materials for use as white balance targets for Ultraviolet Photography. [...]

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Last updated by Dave Kennard

Using AI for Image Captioning

July 8th, 2025

Testing several AI models to see if using AI to generate captions for photos is practical. [...]

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Last updated by Dave Kennard

5 ultraviolet flashlights compared

June 5th, 2025

Comparison of 5 UV flashlights / torches: AloneFire SV62 365nm; AloneFire SV108; Convoy S2+; UltraFire WF-501B; Old cheap. Looking at how much UV light they output, how much visible light they output, and what the light pattern looks like. [...]

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Last updated by Dave Kennard

Protective glasses for ultraviolet photography

May 28th, 2025

Comparison of UVEX Super OTG (Over The Glasses) safety glasses, Normal eyeglasses, and SCVCN Cycling glasses in terms of using them to protect your eyes from UV. [...]

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Last updated by Dave Kennard

Flash comparison for Ultraviolet close-up photography

May 24th, 2025

Comparison of various flashes for their UV output: Godox AD200 with standard head, AD200 with bulb head and AD-S2 reflector, Vivitar 283, Cokin Creative Flash, Canon MT-24EX, and Godox R200 ring flash. [...]

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Last updated by Dave Kennard

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. [...]

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Last updated by Dave Kennard

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. [...]

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Last updated by Dave Kennard

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. [...]

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Last updated by Dave Kennard

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 […] [...]

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Last updated by Dave Kennard

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