Sigma EF-610 DG ST Electronic Flash for Canon Digital SLR Cameras

This is my second sigma flash. My 1st experience was good with a Pentax DSLR. I jumped on this for my canon DSLR and was not disappointed. Worked great for my daughters graduation.

A much cheaper alternative to the 580EX II. I can only assume that the guide numbers are accurate, which would mean it provides a bit more light than the 580. There are a few areas in which it's definitely inferior to Canon flashes, and they're likely to have varying degrees of importance to different people: * It only has three stopping positions when you tilt it upwards, and the first is maybe 80 degrees; the last is a bit backward. * The battery compartment door is very poorly designed; it comes off easily and is tricky to replace (it isn't designed to purposely come off, it just does). * There are only three modes in which it can operate: ETTL II, full power, or 1/16 power If you're only interested in lots of light straight forward, or angled nearly straight up for bounce, in ETTL II mode, then this is definitely more cost-effective than a Canon flash.

This flash is very flexible and meets all of my needs as an enthusiast photographer. The flash recycle rate is pretty fast, even at full power, when using rechargeable batteries. The battery life seems pretty good as well. The flash is plenty bright for general purpose - I often use it to light back drops (either white or with color gels) and it does the job just fine. It's also flexible, you can use the flash in manual or E/TTL modes and also as a master/slave for other Sigma flashes. The controls do take a bit of getting used to, but after a couple days with them it's not all that complicated. My only complaint is that the battery door is rather cheap plastic and seems pretty flimsy.

Took continuous portrait shots on Canon T2i with 24-105mm lens and tripod but flash triggered intermittently leaving most of the photos dark. Same results with timer. Flash is OK if you are taking one photo at a time and not using burst mode.

I just ordered this flash, and I was a little cautious, and even was thinking that I was making a mistake by not spending $100 more on the Canon flash. Well, when the flash came today I was very impressed. The feel and functionality was much better than I expected. So far, I am very pleased. If anything changes, I'll be sure to update my review.

Very good flash with adequate settings. Effective TTL metering. Size of the flash head assembly is a bit larger than similar Canon Speedlites, so if you are attempting to use Speedlite accessories (diffusers, etc.) with this flash, please be advised that they may be very snug or just not fit.

Not perfect for canon camera, but very good for its price. If you have budget limitation, you can buy this flash

It is a piece of junk, buy for Canon, but I sent Sony. I live in Venezuela now I can not return it for an exchange. This is bad service without excuses, maybe the product is not to blame.

Un cambio espectacular respecto a mi anterior flash, que no contaba con tecnología TTL. Dosifica perfectamente la luz, de forma que no quema los primeros planos. El difusor funciona muy bien, al igual que el reflector. Tiene una potencia adecuada para usar por rebote en el techo, con lo que la iluminación es muy homogénea. Me parece que tiene una muy buena relación calidad/precio.

Comme souvent sigma fait les choses bien. Bon produit ayant un bon rapport qualité prix. J'ai toujours un peu peur avec les plastiques qui semble un peu fragile, mais quand je vois les flash Canon concurrents, c'est assez similaire niveau finition. Livraison impeccable.

Ho preso questo flash Sigma dopo che il mio Speedlite Canon 580EXII cominciava a cedere e non avevo intenzione e reale bisogno di rispendere gli stessi soldi per uno originale. Detto ciò elenco i punti che a mio avviso sono a favore. Potenza del lampo notevole e paragonabile al Canon. Materiale di construzione molto buoni. Ottimi al tatto. Buono il serraggio a vite, classico ma efficace. Il serraggio rapido di Canon non mi ha mai perticolarmente esaltato se non per praticità e velocità! Note secondo me negative: Sportello pile assurdamente retrò come meccanismo e non super per ergonomia e rapidità di chiusura. Mancano i disegni di rifermento per orientare correttamente le pile. SI uno pensa che questo non sia un problema ma quando si va di fretta vi assicuro che avere questi disegnetti con il + ed il meno sono vitali! La seconda cosa che mi lascia perplesso è il rumore della parabola automatica. Leggermente più fastidioso e "meccanico" del Canon. Terza cosa l'interruttore troppo piccolo! Definitivamente troppo piccolo e con scatti troppo ravvicinati. Bisgona stare attenti a che step si accende il flash perchè si rischia facile di spostare subito troppo verso "M" a tutta potenza e quindi si perde il TTL che sta posto al primo posto del selettore. Lo avrei visto meglio a fine corsa verso DX. Così uno è più sicuro di non sbagliare ed avere sempre il TTL attivo. Ultima cosa i pulsanti della parabola. Ottimo il verticale, scomodo e piccolo quello orrizzontale. Detto tutto questo mi sento vivemente di consigliare qusto flash in rapporto prezzo qualità non ha eguali. Potente, ben costruito e dotato dell'essenziale per lavorare ottimemente con la mia DSLR Canon 5D. Ad un professionista lo sconsiglierei perchè non è fatto secondo me per lavori costanti e giornalieri o per stare all'aperto sotto pioggia ecc... Per il fotoamatore evoluto invece o un matrimonialista lo posso veramente cosigliare. Quindi promosso a 4 stelle!

This was not the gun I was hoping to buy but the first choice was out of stock. I am glad I got this one as it is a great flash unit for the money.

Ich besitze das Gerät zwar gerade mal ca. zwei Wochen, hab aber mittlerweile mehrere hundert Fotos mit geschossen und denke, ich kann hierzu eine erste Bewertung abgeben. Der Blitz hat eine komplett gummierte Oberfläche und ist somit sehr griffig und lässt sich gut anfassen. Einzig der Batteriefachdeckel wirkt vielleicht etwas labberig, aber das kann ich verkraften. Von der Blitzleistung bin ich begeistert. Bei keinem einzigen Foto ist eine übermäßige Über- oder Unterbelichtung festzustellen. Der Zoom läuft leise und schnell. Ich hab das Gerät an einer EOS 1100d und einer Powershot SX40 ausprobiert und mit beiden Kameras funktioniert der Blitz super (evtl. muss man kleinere Einstellungen in der Blitzsteuerung vornehmen). Für mich das Fazit: Leitzahl 61 bei dem Preis, einfach spitze!