On my Canon 70D there's a considerable lag during the change of aperture when pressing the depth of field preview button. This lag also occurs during video recording, which causes the video to halt ...
I am having difficulty getting my Canon speedlites (600ex master and two 430ex slaves) to fire when using Live View on my 5D Mark III. I have no triggering problems except when using Live View. I was ...
Till couple of days ago, there was no problem :( What could be the reason? See one shot with it below. Is there anything I can do, or should it to be repaired? My camera is Nikon D5100. I bought it ...