How much zoom is 250mm
Travel zoom Sigma 18-250mm DC OS HSM
Today there is a report on a Sigma zoom lens. The Japanese lens manufacturer has a travel zoom with a focal length range from 18 to 250 mm in its production program.
Sigma manufactures a wide range of photo lenses. The amazing thing about this travel zoom is that the Sigma TV commercial was also filmed with it. You can of course also see it on the Sigma homepage. You can also watch the making of the TV commercial there.
It's amazing how many good and positive things the director has to say about the Sigma zoom lens. Despite the large zoom range, the lens is said to be amazingly good even with the aperture open.
Well, since I didn't have a copy to test, is it difficult for me to verify this claim? I have certain doubts about this range of focal lengths. Various techniques are certainly used to correct optical errors. But the quality can hardly have the quality of a fixed focal length with 18 lenses. Too many photo-optical laws speak against this.
However, I do not doubt the quality of this zoom lens either. The developers at Sigma have hardly left out any technology to keep the optical quality high. The optical quality for the range of focal lengths should also be quite good.
- DC remuneration -> The lenses are specially remunerated and calculated for digital cameras.
- ASP -> correction using aspherical lens elements.
- HSM -> Ultrasonic motor for setting the distance is faster and virtually wear-resistant and, above all, almost noise-free.
- IF -> interior focusing is faster because fewer lenses have to be moved. Another advantage is that the front lens does not twist when zooming or focusing. This is a pleasant plus point when using polarizing filters.
- OS -> optical stabilizer. Up to four additional light values can be photographed without blurring with this technology! One often saves a tripod.
Now let's look at the technical details.
- Focal length 18 - 250 mm -> an enormously wide range
- Light intensity 3.5 - 6.3 -> with the range of focal lengths you can't expect extreme light intensity. This would definitely be at the expense of the optical quality. For a travel zoom, the light intensity is OK. It should also be noted that the autofocus reacts more slowly due to the low light intensity.
- Largest reproduction ratio 1: 3.4 -> partially useful for close-ups. The macro area cannot be covered with it. But there are also macro lenses for that. Of course also from Sigma.
- Lens hood is included -> I think it's very good!
- Weight 630 g -> is relatively light for 18 lenses and the focal length range!
- MSRP € 749 -> is relatively cheap for the range of focal lengths and the technical equipment.
- Available for Sigma, Canon AF, Nikon AF, Sony AF and Pentax AF
A travel zoom with a super wide angle and strong telephoto. A versatile standard zoom with many technical options for the travel photographer. SLD glasses and aspherical lens elements ensure good correction of frequent aberrations over the entire zoom range. The SML coating ensures a high contrast and neutral color rendering.
I cannot judge whether a TV commercial with the well-known actress Sophie Schütt is more sales-promoting. In any case, I wouldn't buy this lens. However, this is due to the fact that I have certain photographic focuses and have therefore already covered this focal length range with several lenses. But if you are looking for a lens that can do a lot, the Super-Zoom from Sigma may be the right one.
There was one point I found strange about the Sigma TV commercial. Ms. Sophie Schütt photographed many photo motifs in South Africa in the commercial. However, there is no lens hood on the lens? Although this is included in the scope of delivery. Strange because with the lens hood, Sigma ignores two sales arguments! With a lens hood, most shots in sunshine will get better contrast and richer colors. And by the way, a lens hood also serves as mechanical protection for the front lens and the objective!
A versatile lens for the comfortable photographer. The focal length range covers everything from super wide-angle to telephoto. The optical stabilizer often saves a tripod. However, you shouldn't be too naive and think you don't need a tripod anymore. Since the lens is quite faint in the telephoto range, you really need this technology in order not to blur the majority of the pictures. The optical quality should be quite good for this lens class due to the high-quality coating and aspherical lens elements.
If you are looking for a comprehensive travel standard lens, you should like the Sigma.
For 750 € RRP (price comparison sites between 430 - 700 € as of April 2011) it is available at a very good price-performance ratio. Some photo dealers also offer it as an entry-level set with some camera models.
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