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EOS 300D Shutter Speed Restricition.

Started Mar 26, 2015 | Questions thread
OP electrolux Forum Member • Posts: 91
Re: EOS 300D Shutter Speed Restricition.

AnthonyL wrote:

electrolux wrote:

Firstly is HSS 'high speed steel' or 'high speed sync' (Don't bother replying to that one!)

Yes I don't need a higher shutter speed than 1/1000sec but my EOS still doesn't do that with flash which I need for indoor photography otherwise I'll get a black square.

Yes you will get a black square because at faster than sync speed the shutter is a moving slit and the non-hss flash has fired whilst some of the picture is blocked off. This is what happens with ALL DSLRs.

Try http://www.johnaldred.com/what-is-sync-speed/ and see if that explains it for you.

Thanks for that page it's pretty good. I'll read it later.

Here is a photo I took with 1/200sec & NO external speedlight etc.

Yes, the flash now is determining the exposure. You would have likely got the same if you had shot at 1/100th. But with an external flash you can reduce the strength of the flash to give an even shorter exposure time.

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Olympus OM-D E-M10 Canon EF-S 18-55mm f/3.5-5.6 Panasonic Lumix G Vario 14-42mm F3.5-5.6 ASPH OIS +2 more
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