mark skalinski Posted March 4, 2007 Share Posted March 4, 2007 I have Canon 30D and 580EX Flash. Can not make flash working with aperture priority. It is regardless I have Manual or ETTL setting on Flash. Appreciate any hints. Thanks Mark Link to comment Share on other sites More sharing options...
savas_kyprianides Posted March 4, 2007 Share Posted March 4, 2007 What is the problem you see in your photos? Link to comment Share on other sites More sharing options...
mark skalinski Posted March 4, 2007 Author Share Posted March 4, 2007 Flash is not firing and I am getting long times as without flash. Link to comment Share on other sites More sharing options...
mark u Posted March 4, 2007 Share Posted March 4, 2007 Did you check whether flash was working in other exposure modes? The first suspicion is that you have a problem with seating the flash correctly in the hotshoe, or with dirty contacts (clean both the hotshoe and the flash foot contacts). The next thing to investigate is whether the hotshoe needs fixing: http://www.eosdoc.com/manuals?q=FixHotshoe Link to comment Share on other sites More sharing options...
sattler123 Posted March 4, 2007 Share Posted March 4, 2007 When you use the flash in Aperture Priority mode, the camera will still use long exposure times to capture the ambient light of the situation. You need to read up on flash exposure. Try setting your camera on "P". That is more the trasditional flash behaviour - short synch times. I suspect your flash is fine, you just don't understand yet how it works. Link to comment Share on other sites More sharing options...
even Posted March 4, 2007 Share Posted March 4, 2007 To complement Juergen's comment, I recommend you pick up this DVD: http://www.amazon.com/Understanding-Canon-Speedlite-580EX-430EX/dp/B000CQM2LM/ref=sr_1_16/105-4414331-9098819?ie=UTF8&s=dvd&qid=1173009215&sr=8-16 Link to comment Share on other sites More sharing options...
e._r._averitt Posted March 4, 2007 Share Posted March 4, 2007 There is also a custom function to set on your 30d. On my 20d it is; C.Fn-03 0: Auto or 1: 1/250sec.(fixed) Link to comment Share on other sites More sharing options...
j_smith6 Posted March 4, 2007 Share Posted March 4, 2007 Is your flash firing at all in any mode? Camera in Av mode with flash is working normally, the exposure's times still will be long (if there is not enough light) and the flash will work additionally for example to light the people in shadow to eliminate the contrast between the background and the people close to the camera. + Check all CFs. Link to comment Share on other sites More sharing options...
trevytrev Posted March 4, 2007 Share Posted March 4, 2007 Using flash in Apature priority the flash acts as fill lighting. You can go to custom functions as one person before said or shoot in manuel mode and set you apature and shutter speed to the desired amount and the flash will fire the needed amount of light for the combo of the two. This site here as a lot of info on flash photography basics, i recommend it as it was a big help to me. <a href="http://photonotes.org/">Photonotes.org</a> Link to comment Share on other sites More sharing options...
jim_larson1 Posted March 4, 2007 Share Posted March 4, 2007 Why would anyone use that custom function? Shooting at night with F4.0 shutter 1/250th is stupid. Shoot manual. . . put the shutter and aperture where you want it, and let the flash do its job . . During the day. . .shoot as normal. If you have a shutter coming up at higher than 1/250th based upon ambient light. . .use high speed sync. Link to comment Share on other sites More sharing options...
mawz Posted March 4, 2007 Share Posted March 4, 2007 The CF is for people who expect Av mode to work like P mode. Otherwise you can ignore it (I certainly do on my 10D) Link to comment Share on other sites More sharing options...
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