Sigma EF-530 DG ST Electronic Flash for Canon DSLR: Customer Reviews & Product Details

This flash is not a good fit for canon digital cameras. The canon digital line uses e-ttl (evaluative through the lens metering). This flash only works correctly with standard ttl such as nikon. It is very similar to the flash I have for my 35 mm canon. It works ok for the older film models but not with the newer digital.

The flash under exposed in all pictures. Tried to use it on a Canon Rebel, 300D, and a Canon Rebel XT, 350D. Every picture was under exposed in full auto and programed mode on both cameras. Place where purchased stated that it needed to be sent to Sigma for warranty repair. Have not recieved the unit back from them yet.

I bought this flash, admittedly by mistake. I meant to get the "super" version but I didn't look close enough at the product label. This flash when used on the Nikon D80 really is sub-par. It only actually flashes 80% of the time with the rest just simply going unlit. For the first few uses after being turned on it exposes correctly and then ever shot after that get progressively more exposure until the frame is nearly completely saturated white. It will not fast sync over 1/640 shutter. I wanted a large output flash for outdoor fill, but with such a low sync it is not even good for that.

It is very cheaply made and have really no useful features other than it gives of a HUGE amount of light (when it flashes and typically when it is not needed)

I do not recommend getting this product and I will be returning it as soon as I can get reach of 47st photo. (I hate getting shipments on Fridays just for this reason).

I am not going to try to "super" version. It is too much more money to trust it will work correctly. When the Nikon SB-600 flash is the same price even if it does have a lower GN.