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Pop-up flash and adapted manual lens?

Started Jun 27, 2017 | Questions thread
WilbaW
WilbaW Forum Pro • Posts: 11,643
Re: Pop-up flash and adapted manual lens?

northernosprey wrote:

Will 550D's pop-up flash works (such TTL) with adapted (M42 > EF) manual focus lens?

Depends what you mean by "work". It will fire whatever is on the lens mount (including nothing), but I wouldn't rely on ETTL to get a good result, because it depends on knowing what aperture is going to be used for the exposure. A chipped adapter will tell the camera an aperture, but it's fixed and may not be matched by what the lens can do or what you want for the shot. So you need to be using the flash in manual mode, which probably means you need to be using a Creative Zone mode. Check out the Flash section of the unofficial Rebel Talk FAQ for more info about that kind of stuff.

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