Sigma 10-20mm f/4.5-5.6 DC HSM
Lens construction: 14 elements in 10 groups inc – 3 SLD glass elements 2 hybrid aspherical elements 1 glass mould aspherical element.
Maximum aperture f/4,5 – Minimum aperture f/32.
Lens No. of diaphragm blades 6 Rounded.
Lens closest focusing distance 0.24 m (9,45′)
Dimensions 84 x 81 mm
Weight 470 g
Filter size 77 mm (non-rotating)
It’s good to have a high-quality ultra-wide angle zoom lens.
Sigma’s 10-20mm F4-5.6 EX DC ultra-wide zoom lens for digital SLR cameras is ideal for landscape photography, building interiors, group and party pictures and much more.
Great for working with close foreground subjects as this lens features a minimum focusing distance of 9.4” at all focal lengths ensuring great creative potential.
The wide angle view of up to 102º also offers greater freedom of expression.
10mm VS 20mm
When I bought this lens for three years ago my plan was to start working more in real estate photography business and my plan then was to use my D7000 DX camera for that kind of photography.
But I did not go in the real estate photography business, Instead, I went in portraits and events photography.
Now in 2017 – if I would go into real estate photography I would use my D810 or an FX camera and some lens like AF-S NIKKOR 14-24mm f/2.8G ED lens
Lens flare is the light scattered in the lens mechanisms, usually unwanted.
But lens flare can also be useful because it adds a sense of realism in images or video, meaning that the image is a non-edited original photograph of a real-life scene so it is more up to you what you want or needs.
All lenses suffer from some imperfections especially old cheap lenses.
Almost all modern lenses are coated to minimize flare so when you use some of the old lenses you should always use a lens hood, a lens hood will help eliminates flare if the bright light is slightly off to the side.
But it won’t help if the light is directly in front of you.
Conclusion and recommendation
If there’s anything I can say about this lens, then it has been good to have this lens in my lens collection.
Overall it’s a good lens, this lens does not have any special character other than a good build quality and its good to have.