File:Canon 540EZ strobe mod - Bare tube (1438684509).jpg
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Here's the Canon 540 EZ I bought from a secondhand shop (Wants in Plymouth, UK) for £35($70). I stripped the strobe tube out of it and put it on a long piece of flexible audio cable to make a bare tube. Total time: about 3 hours including taking the photos. If you are thinking of trying this please read BEFORE starting. This is not a set of instructions, it's just a document of me doing the mod. There are very high voltages in flashguns / strobes even once switched off. They are very dangerous once open. It doesn't work correctly: 1) It always fires at full power; this is due to an optic fibre link from the lens at the front being ignored as an unterminated unused lead. Solution - add a longer fibre optic link. 2) It fires unreliably; this is due to the trigger coil being too far away from the tube. Solution - move the trigger coil closer to the strobe tube, into the tube housing. The experiment was inspired by this posting of a <a href="https://www.flickr.com/photos/pixonian/1275139894/">modified SB-24</a> by <a href="https://www.flickr.com/photos/pixonian/">pixonian</a> and another posting using Comic-life as record of a project (I can't find the link). Thanks to both. You can see my Comic-life skills are limited and the program has done some nasty colour saturation treatment, especially to the reds which is a shame. The photos were taken on Jim's worktop on a sheet of white paper with an SB28 camera-left at 1/32 through a small shoot through umbrella plus reflector sheet of white paper camera right (reflector missing for three photos). Canon EOS350D, ISO 200 1/250th second, f/5.6 mostly. Apart from the test snapshot in the cider at the end which was f/32 with a polarising filter (I don't have any ND filters). Lenses: Canon 18-55mm kit lens and 60mm EFS macro. When I switch the unit on now the zoom motor hunts for 3 or 4 seconds, presumably because I removed it's little slider which I could not be bothered to re-assemble (seeing as it is now unzoomable). It stops and works fine after that. |
| Date | |
| Source | Canon 540EZ strobe mod - Bare tube |
| Author | Dave Gough from Somerset, England |
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This image was originally posted to Flickr by spacepleb at https://flickr.com/photos/86381820@N00/1438684509. It was reviewed on 12 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 19:43, 12 December 2020 | | 4,958 × 3,508 (8.25 MB) | Eyes Roger (talk | contribs) | Transferred from Flickr via #flickr2commons |
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