SIGMA 10-20mm F3.5 EX DC HSM for CANON

I don't know if this glass is a wide-angle lens or a fisheye lens? Regretted investing in this glass.

I have never bought a 'wide' lens of this level, with a minimum focal length of 10mm it is as near to 'fisheye' as you want to get if you want to correct distortion. I looked at all the reviews here before buying this lens and found them honest and accurate. There is indeed softness towards the corners of the images as another reviewer stated but it is not in my opinion objectionable. The general points for me are that it has excellent contrast, very good saturation and delivers a very sharp picture (apart from those corners). I have put three images on the item page here for you to see. I got the lens on 11/10 and took the photographs on the 12/10 they are unedited and quite poor compositions compared to the other excellent images in the line, but they show what you get just by going out and pressing the button. Well worth the money and a fine lens.

I've owned this lens since February and it is my favorite lens for hiking. Using an ultra wide angle lens is a unique experience that comes with a steeper learning curve then most other ranges. The biggest concept to grasp is scale, at 10mm an object 1 foot from your lens will look like its 5 feet away through the viewfinder, so composition and corner to corner attention to detail is crucial to getting a good image. Distortion at its widest is reasonable and expected. It is incredibly sharp in center to mid frame wide open, but it can get a little soft on the edges. I own the Canon 70-200mm 2.8 IS USM II , so I know what sharp looks like and I have no gripes with this sigma. Focus is quick and the rings have just the right amount of tension allowing for precise setting. Try laying on the ground and have a friend jump over you, ultra wide angle lens have incredibly large depths of field and it's hard for this lens to miss focus. Also the minimum focusing distance is inches from the front element, so watch those cactus needle in the desert. The color reproduction is wonderful, and flare is controlled very well by design. The hood is ample, although when shooting wide the sun always seems to find its way into frame. Chromatic Aberration can occur towards the sides of the frames, but due to the previously mentioned scaling effect, you would have to crop into the image to notice it. The case is great, although I never knew how awkward working a cube into my camera bag would be. I eventually started leaving the case at home as it just took up to much room in my bag. Ultimately I do not regret this purchase one bit. Compared to other ultra wides, I couldn't tell you, all I can tell you as this is my go to lens when I'm feeling creative and it hasn't let me down yet. I'll post sample pics to illustrate my points.

nice build quality . quite less distortion . but the gocus ring is little hard to turn .

I have used this lens for a couple of years and have never had a problem. It adds a great dynamic to shooting. There is no image stabilizer but the lens is so wide that it does not matter. This lens takes great pictures and is a necessity for shooting in a tiny office or trying to squeeze giant landmarks into a frame from across the street. I would highly recommend. The product arrived quickly. I received what I was promised. Thanks.

Un objetivo gran angular increíble. Incluye parasol y funda. Sorprende que las líneas rectas se mantienen rectas (no produce la curvatura típica que hace una GoPro o un ojo de pez). Pero se ve el efecto gran angular en cuanto mueves la cámara. Se puede usar la apertura F3.5 en todo el rango de distancias. Lo bueno es que al usarlo con aperturas más pequeñas (F8, F11) consigue mucha nitidez en toda la imagen al ampliarla. Está genial para fotos de paisajes, arquitectura y de interior. Pero en especial lo estoy disfrutando al hacer retratos creativos. Si pones a alguien dando un salto de 30 centimetros de altura a un metro del objetivo parece que está saltando metro y medio. Puedes poner al sujeto bastante cerca y exagera mucho las distancias. Si la persona está en el centro no hay una deformación excesiva (salvo que estés a 10 centímetros, como veréis en la foto de mi perro). Hacia los bordes si que se nota (sobre todo cuando el sujeto está muy cerca de la cámara). Pensando que hace un año costaba 899 euros y que unos famosos grandes almacenes lo venden por 700 me parece una compra excepcional. Os incluyo una foto usando el flash incorporado en la cámara (Canon EOS760D). Es la foto en la que se ven unas puertas de armario. El objetivo abarca tanto que se ve la forma de la lámpara del flash y la sobra redonda del inferior es el borde del objetivo. Tengo que probar el parasol porque en ocasiones salen varios halos si entra luz lateral en el objetivo pero a pesar de ello me gustan las posibilidades creativas que tiene.