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Edit title and some corrections in the body; edited tags and further refinements to turn the title into an actual question, and tightened text.
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inkista
inkista
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Why is my Canon 155A Speedlite 155a Flash not firing from the hotshoe onof my Canon AE-1?

Like the title says the hot shoeThe AE-1's hotshoe won't fire the flash from some reason. I have the shutter speed set to 1/6060s and the f stop on auto as I shouldmy aperture is set to A (auto). The test button on the 155a155A fires andthe flash as does shorting two of the hot shoe connectors fires the flash, but the shutter button won't for whatever reason. I can see that the camera picks upsenses the the flash unit because the light meter is locked on the appropriate f stop but-stop. But I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoehotshoe flash unit works but I have no way of testing a sync port on the 155a155A. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

Canon Speedlite 155a Flash not firing from hotshoe on Canon AE-1

Like the title says the hot shoe won't fire the flash from some reason. I have the shutter speed set to 1/60 and the f stop on auto as I should. The test button on the 155a fires and shorting two of the hot shoe connectors fires the flash but the shutter button won't for whatever reason. I can see that the camera picks up the the flash unit because the light meter is locked on the appropriate f stop but I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoe flash unit works but I have no way of testing sync port on the 155a. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

Why is my Canon 155A Speedlite not firing from the hotshoe of my Canon AE-1?

The AE-1's hotshoe won't fire the flash from some reason. I have the shutter speed set to 1/60s and my aperture is set to A (auto). The test button on the 155A fires the flash as does shorting two of the hot shoe connectors, but the shutter button won't for whatever reason. I can see that the camera senses the the flash because the light meter is locked on the appropriate f-stop. But I have no luck getting it to fire the flash. Using the sync port on a different, non-hotshoe flash unit works but I have no way of testing a sync port on the 155A. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

Edit title and some corrections in the body
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edit approved Sep 3, 2021 at 1:34
Big Joe
edit approved Sep 3, 2021 at 1:34
Big Joe
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155a Canon Speedlite 155a Flash not firing from hotshoe on Canon AE-1

Like the title says the hot shoe won't fire the flash from some reason. I have the shutter speed set to 601/60 and the f stop on auto as I should. The test button on the 155a fires and shorting two of the hot shoe connectors fires the flash but the shutter button won't for whatever reason. I can see that the camera picks up the the flash unit because the light meter is locked on the appropriate f stop but I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoe flash unit works but I have no way of testing sync port on the 155a. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

155a Speedlite Flash not firing from hotshoe on Canon AE-1

Like the title says the hot shoe won't fire the flash from some reason. I have the shutter speed set to 60 and the f stop on auto as I should. The test button on the 155a fires and shorting two of the hot shoe connectors fires the flash but the shutter button won't for whatever reason. I can see that the camera picks up the the flash unit because the light meter is locked on the appropriate f stop but I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoe flash unit works but I have no way of testing sync port on the 155a. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

Canon Speedlite 155a Flash not firing from hotshoe on Canon AE-1

Like the title says the hot shoe won't fire the flash from some reason. I have the shutter speed set to 1/60 and the f stop on auto as I should. The test button on the 155a fires and shorting two of the hot shoe connectors fires the flash but the shutter button won't for whatever reason. I can see that the camera picks up the the flash unit because the light meter is locked on the appropriate f stop but I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoe flash unit works but I have no way of testing sync port on the 155a. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.

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Gianni Magarelli
Gianni Magarelli
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155a Speedlite Flash not firing from hotshoe on Canon AE-1

Like the title says the hot shoe won't fire the flash from some reason. I have the shutter speed set to 60 and the f stop on auto as I should. The test button on the 155a fires and shorting two of the hot shoe connectors fires the flash but the shutter button won't for whatever reason. I can see that the camera picks up the the flash unit because the light meter is locked on the appropriate f stop but I have no luck getting it to fire the flash. Using the sync port on a different, non-hot shoe flash unit works but I have no way of testing sync port on the 155a. I've also tried cleaning the hot shoe connections.

Any help would be appreciated.