Posts Tagged ‘course’

[Sigma 10-20 EX DC HSM] The best (ultra-) wide-angle lens

[Sigma 10-20 EX DC HSM] The best (ultra-) wide-angle lens

From ruessler

With the 10-20mm Sigma has an excellent lens in the program. It shows the other competitors in many respects, what is a rake. Of course, it also has little weaknesses, but that one sees across, if you realize what this lens has strengths.

The image quality is excellent, the sharpness is very persuasive. Only Aperture can open it blurs the edges to come, but this is for most lenses so. Everything is grayed out in the green area.

The vignetting makes Although noticeable, but is easily correctable with postprocessing. Such a lens requires postprocessing on the computer anyway, also in order to correct the distortion that inevitably occurs.

The autofocus is fast and quiet, thanks to HSM drive.

The workmanship is very good. Recently, Sigma finally establishes a proper lens cover for where you removed the front hineingreift – finally, the old lid, the one on the side abpulen had, was an affront. Also contains a lens hood and a bag of useful.

I can fully recommend this lens, because it gives you possibilities you with longer focal lengths does not have! With the beginning of 18mm focal length (29mm equivalent) you can eventually become unable to go back ;-) .

A few words about the comparison with Canon’s own 10-22mm. This is more expensive, has no lens hood at (and that you must buy is enormous) and is darker from. Especially the latter fact is similar to light the alleged weakness of the Sigma lens again.
I’ve tested both lenses and find the Sigma even much sharper!
So the choice should really be clear: Sigma 10-20mm. Of course nothing for the 5D – because there Abdunklungen that you no longer can be described as vignetting … but that’s a lens for digital times now clear.

translated from amazon.de customer review.

[Tamron 18-270] Almost perfect “Always-out lens”

From Daywalker

At the beginning of this review, I would like to clarify that this lens with a Canon EOS 450D has been tested and found to my knowledge and skills in the field of “ambitious hobby photographers’ move. The saying that I want to make images that I especially digital present and may possibly even in poster size wants to develop.

The lens is of course a bit heavier than the kit lens, but of course much more. The feel like it, the lens makes an impression valent. A lens hood is included.

The audible ?omm works and is also slightly slower than the kit lens. The image stabilizer works very well, it is in the “Life-View” astonishingly alive to experience how the handle their own trembling at 270 mm focal length in half durchgedr?ckten shutter suddenly disappears and the picture is stable.

For my requirements are achieved and sharpening contrasts perfectly adequate and therefore I will not continue because it On.

There is a star deduction for the previously reported in other reviews weakness that the Lens at a vertical position independently one or go out.

translated from amazon.de customer review.

[Nikon 18-200mm] When do so …… can not resist …

[Nikon 18-200mm] When do so …… can not resist …

I could not believe it, we were finally alone!
I admit that my eyes “insistent” had probably put a little ‘uncomfortable, but I could not do without.
Finally, you forward and, without much preamble, I asked: “Do you want to see?”
You can not imagine the embarrassment and make a bold reply: “Maybe first parliamentary un po ‘” … .. …
…. The chat lasted about 15 minutes, and then said: “Come on you can take!”

I could not really do without, and I did it guys … … … … .. not believe it, but I have taken in hand, trying to use all the delicacy possible, without of course forgetting the just close!
“It ’sa small but its the fact!” … … I thought, and of course it is enough to touch him because it gave the best of …

And there it is, I had between the hands, wonderful, I could not believe it, but just does not happen every day that have to do with a goal like this (sorry what you had thought ….?)
A 18-200 mm as this is not easy to find, there are very few around, and I want to describe starting with the wonderful acronym VR Vibration Reduction!
As early as I see her eyes were glazed, what does it mean?
Simply indicates that the target is incorporated stabilizer and stabilizer!
I could not believe my eyes you have, then when I read ED Extralow Dispersion … … …. At that moment I went into a broth Giuggioli: it means that were used some special lenses with low dispersion, and in this aim there are 2, and finally there are 3 aspherical lens surface.

We want to talk about the diaphragm?
But yes, talk is made up of 7 strips that allow an almost completely circular, and sorry if it is little!
This allows for a good read and an excellent contrast in the images out of focus.
What up?
A motor autofocus SWM Silent Wave Motor, and this is really a flagship of the Nikon, because it allows a very high speed action with a barely perceptible noise …. ….
We say that a goal is created exclusively for digital SLRs equipped with a sensor smaller than 24×36mm classic (DX).
But I would go back for a moment about those two beautiful abbreviation “VR” …!
Nikon says that with this stabilizer, you can take a very impressive time, about 4 times slower than normal.
For example, if before we had a good stability at 1/250s, now we can have the same result in 1/30s, and a hand like mine (which usually is not the greatest firmness) certainly the difference is not just 4 stop but probably 3rd

Now a small series of technical data, found that even on the internet never make male:
- Size: 77×96.5 mm
- Weight: 560 g
- Minimum focus 50 cm
- corner of field 76 ? to 8 ?
- Opticard: 16 lenses in 12 groups, 2 glasses ED, 3 aspherical lenses
- f/3.5-5.6 High Brightness Brightness min. f/22-36

And now enough data, go to the news, said that between us is perhaps known more for worse this gem: the price!
To buy it, it takes about 850 … .. !

Of course, for the moment, for me remains only a dream, because I have just started a “Save Campaign” to a desire (better to call it madness) even greater and probably unachievable, but I will try!
Gentlemen who can afford this price, and the Nikon camera that can mount (eg Nikon D200) assure that truly deserves … …

translated from caio.it

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