A responsive engine and low noise! (But it is logically more widely heard than USM system, which "remains a spectacular pinnacle" !!!, reference ... of course ...).
The development is just, and operator proves responsive enough to provide the user with this great feeling of confidence and ease of use that is always welcome at all times during the shooting ..
"Surete" So on that side!
On the side of the optical stabilizer, it is also rather successful, and without that it is flamboyant, it does its job very properly, and ultimately assists the photographer, in slightly uncertain situations, like during fast movements or provided low light or strong contrasts.
Note that this target is particularly at ease for portraits, provided one is positioned correctly relative to the subject.
What I like here especially as to its 50 mm !!! :
is that it offers its full potential, without bending !!!
Thus, on its edge to 50 mm, this lens really impresses with its dive, but above and also, because of the fact that it causes little distortion in the image .. and very little deformation perspectives and faces.
The faces and retain all their natural portraits.
The goal remains to almost any focal, pleasant, at renderings, and the image retains a nice outfit, at the dive, as the center of the image or the sharpness is very good ..., so that it remains good to the edges.
A 17 mm less impressed ... he stitched side and made general ...
But for the price, there is no doubt that this goal is more than good, and found "totally" remarkable, without any ambiguity possible.
One area where the Sigma 17-50mm F2.8 EX OS HSM, remains slightly! in this side .. it's in the transcript, and color reproduction, ... a very slight desaturation, it does not dazzled side, vivid colors and tones ... respects he willingly ask that you work a little shades, we left in search of the tone, it most pleasant, the most appropriate.
Work rendered ... post !!
Or, to be happy and more than usual, work on your case
"Rendered modes" or "picture controls" in advance,
as usual for your JPEGs, and treat in this case in particular.
There is therefore, a little more work than other goals, mini "challenge", which incidentally is not unpleasant ... which quickly pays off because the minutes become by Following strong rejoicing.
Anyway, in color term, it remains above average, and we can even say excellent, just ... it remains in this area slightly behind compared to other goals I have been used.
- Regarding the native contrast, it is very good.
When you reach a good transcription of tones, very good contrast catching !! and often crown the whole,
giving the image a very pleasant personality.
This goal, in so many very good services to offer, with its user and that will deal with these relative small weaknesses, but also the fact that we must also be aware, that this must first be "good" correctly used.
The vivacity of color or temperature and white balance will surely see in some respects.
Moreover, with a Canon L-series lens, for example, with which its general sharpness is almost !!!! .. Comparable ....... and that's no small compliment ....
Another point which is rarely addressed ... and yet it has a 17-50 opening wide barrel !!!
77mm ... why is it pleasant? In fact I often noticed that a large field goal often put the subject to his ease,
less narrow a target of 52 mm ... The portraits are not often as more natural.
The 17-50, is well built, finishing is to go!
And confirm that the "Lens made in Japan" objectively places (smiles!) Photographers confident when impeccable manufacture of optics.
Relatively robust structure, its weight gives confidence (BON POINT)
very good balance.
I like a bit "heavy" goals.
The handling of zooms ALL smoothly and is sufficiently strong ... not any ramolie,
excellent!
I did not complain, no fragility in the overall design.
The finish is good to excellent!
Note: switches on / off stabilizer and the "autofocusing"
TOO WELL are flexible, and it can happen that you inadvertently inadvertently disable the AF system and stabilization system.
The goal comes with a very nice and extremely robust reinforced case!
the point that everyone likes ... this objective can open 2.8 steadily over the entire range, from 17 to 50 mm .... that's a huge plus ... !!!
At this price level it is an extremely valuable service.
BUT: The sharpness 2.8 does not impress me, ... and I prefer slightly close to 3.2 ... even go up to f4, and mount the housing of the sensor sensitivity if necessary, also to moderate the very light abbérations color, which remain very well controlled, in the stone!
Contrast and sharpness are early enough f4 "" awesome "" ... confirming the exceptional value for money for such a product ...
The overall delivery, is more than remarkable.
I confirm the sharpness level level that was reminded of numerous recovery, as much as that is nicely distributed over the entire image, and does not concern only, as TOO often in some objectives that the center of the image .
Concernannt JPEG compression: make sure to set them in your case, tones and saturation that have your preference ... from neutral to very mixed degrees Kelvin or tempétures following your tastes, colors ... etc ....
On Raw: be aware if possible, assets, strengths, benefits and slight weaknesses that goal.
... There or I find the super? the inside photo, portraits, impressive dive ... or gives so true side to situations ...
Many photagraphe, (the vast majority) (if it is a traditional use in photography) like a recessed sharpness and very very very soft contours, for portraits.
In my practice photo, on the contrary !! .. For vitality, vivacity, I like to enjoy a large acute revelation for scenes of family life, for example !! and interiors.
This objective still holds imppecablement unabated stitched side on a housing 24 megapixels, and it's not a single thing.
Safe goal, especially to discover and enjoy.
Photo very good practice to All
