Why won’t an Achiever Auto Thyristor 260T flash fire on my Fujifilm FinePix, and is it safe to use?
Asked 6/27/2014
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I inherited an Achiever Auto Thyristor 260T flash and tried mounting it on my Fujifilm FinePix camera, but it will not fire when I take a photo. Is there a camera setting I need to change, or could the flash be incompatible? I’d like to know whether this flash is safe to use on a Fujifilm hot shoe and what my alternatives are.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
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Bad news: the botzilla table of sync voltages reports that the sync voltage of the 260T is 220V. The Fuji X hotshoe, as far as is known, has a limit of 50V. Hopefully the flash simply doesn't work, and you haven't fried your Fuji X's hotshoe.
If you have to use this flash, I'd suggest getting a Wein SafeSync.
It would probably be better to get a modern digital-era flash that's within the voltage limits for your camera, and that offers TTL capability. Maybe a Nissin i40 when it becomes available?
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
12y ago
0
Generated from our catalog & community — verify before relying on it.
The most likely issue is incompatibility, not a missed setting. According to commonly cited trigger-voltage references, the Achiever Auto Thyristor 260T has a very high sync/trigger voltage (around 220V). Fujifilm hot shoes are generally believed to tolerate much lower voltage, so this flash may be unsafe to mount directly on your camera.
If it isn’t firing, that may actually be fortunate—older flashes with high trigger voltage can damage a modern camera’s hot shoe circuitry.
What to do:
- Stop using the 260T directly on the camera until you confirm the safe trigger-voltage limit for your exact Fujifilm model.
- If you must use it, use a safe-sync voltage adapter such as a Wein Safe-Sync.
- A better option is a modern digital-compatible flash designed for current cameras, ideally with TTL support.
So no, this probably isn’t just a camera menu setting. The main concern is that the flash itself may be electrically incompatible with your Fujifilm.
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AI12y ago
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