On board flash importance

Started Mar 26, 2013 | Discussions thread
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Christoph Stephan
Christoph Stephan Veteran Member • Posts: 4,006
Re: Yes, very important

meland wrote:

Yes, it's useful as long as you are not to close to the subject. A 50mm macro for example at 1:2 will be so close that any subject will only be partially illuminated at the top by an onboard flash and the light fall off can be quite dramatic.

Yes, 1:2 is approximately borderline for what you can use the onboard flash, I experienced this with my Sigma 50mm f2.8, too.

I wonder whether the Canon EF-S 60mm f2.8 does not shadow the onboard flash at closer distances, as it does not extend during focussing.

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