Author Topic: Alpha-57 Remote (wired) shutter lag  (Read 1123 times)

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Offline dave_in_michgan

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Alpha-57 Remote (wired) shutter lag
« on: July 24, 2014, 05:20:38 AM »
Has anyone tried to figure out the delay between pushing the button on a wired remote trigger to actual shutter release?  I have a Alpha-57.  I want to try taking freezing objects in motion - not very fast, think of the speed of a ball dropping. 

I took a wired remote, added an opto-relay that I can trigger from a optical sensor.  The sensor has a <2 ms delay, the opto relay is << 1ms.  But the ball is already out of the frame when the picture is taken.  I'm using 1/200 shutter priority, a lot of constant light and manual focus. 

Is there anything I can do to speed up the response?  Or would I be better going to a long exposure time and using an external strobe in a dark room?

Offline REX (aka TG)

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Re: Alpha-57 Remote (wired) shutter lag
« Reply #1 on: July 24, 2014, 05:45:18 AM »


Is there anything I can do to speed up the response?  Or would I be better going to a long exposure time and using an external strobe in a dark room?

Yes long exposure in dark room with flash power to 1/32 or 1/64 or 1/128 would freeze your frame. The more you decrease the power of flash the more close you need to go or use more flash units to balance the light
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