We now have regarded on the 100-400mm f/5-6.3 DG DN OS Fresh sooner than as it is Sigma’s present full-frame super-telephoto possibility for mirrorless cameras. What we’ve not noticed sooner than is a full-frame Sigma optimized particularly for the APS-C sized Fujifilm lens mount – till now.
To start with look, you could suppose {that a} full-frame lens can be overly huge and heavy within the face of an APS-C-sized sensor. What concerning the additional mild being wasted on a Fujifilm frame designed to hide an overly huge sensor? Is the Sigma 100-400mm f/5-6.3 DG DN OS a viable possibility or a ludicrous mash-up?

Sigma 100-400mm f/5-6.3 DG DN OS Fresh: Dealing with
Fujifilm already makes a 100-400mm with a reasonably sooner f/4.5-5.6 max aperture. At 48.5 ounces (1,375 g) it is a rather heavy lens, regardless of being made particularly for APS-C. It is relatively heavy within the hand and has the similar intent because the Sigma, with integrated optical stabilization and an identical focal vary.
In spite of the Sigma 100-400mm being designed for full-frame, it in truth is available in relatively mild at just below 39 oz. (1,100 grams). In spite of being the similar measurement, I discovered the Sigma to be smartly balanced and nimble within the hand.

Bodily, the Sigma 100-400mm has a easy zoom ring that may be locked to forestall barrel creep. It is a weather-sealed design and, like any Sigma fresh lenses, feels smartly constructed and forged. There is the standard telephoto lens setup, with an AF selector transfer, concentration limiter, customizable regulate buttons, and symbol stabilizer controls. The hood clicks into position with sure locking motion and a lens collar is to be had to stability the burden at the tripod. Alternatively, Sigma does not supply a lens collar out of the field and you’ll be able to need it, so stay that additional value in thoughts.

Sigma 100-400mm f/5-6.3 DG DN OS Fresh: Within the Box
With the 100-400mm, the very first thing I attempted used to be close-up images. It is a difficult affair with a big running distance of about 1.5 meters, however you for sure would possibly not scare away bugs. I were given some nice pictures of butterflies and bugs with 1:4 macro replica, and optical stabilization helped my luck charge.

When taking pictures in opposition to the solar or vivid mild resources I discovered that the resistance to flare of this lens used to be lovely moderate. There used to be some lack of distinction and the lens shows some obscure greenish ghosting when became off. However, typically talking, lengthy telephotos incessantly do not come with the solar or mild resources at once within the body and the provided lens hood does a excellent activity of decreasing glare in maximum scenarios.

In terms of rendering bokeh and out-of-focus spaces, I discovered the Sigma 100-400mm to have some very slight cat’s-eye impact, which comes out huge open. Preventing down, the highlights are great and spherical, regardless that in addition they showcase important soap-bubble results and onion rings. Thankfully, the out-of-focus background regarded lovely first rate. You can see a large number of comfortable backgrounds when taking pictures natural world and it is important that the lens renders them on your liking. Sigma backgrounds do not glance overly harsh and transitions from sharp spaces are easy.


Sigma 100-400mm f/5-6.3 DG DN OS Fresh: Sharpness is the Key
The very first thing I wish to perceive is that detail-robbing diffraction is all the time provide with any digicam gadget and the extra you quit down your lens the softer issues get. After all, preventing down improves the presence of a few optical aberrations and brings extra of your symbol into concentration. In the long run, you’ll be able to to find that the softness from diffraction outweighs any good thing about preventing down, and thus – in extremely simplistic phrases – we would possibly not cross a lot past f/8 or f/11 if we wouldn’t have to. wish to cross Lengthy tale quick, you wouldn’t have a lot aperture vary to play with on one of these gradual lens.

At 100mm I discovered that the Sigma shoots very sharp at f/5 at each the middle and corners of the picture. Preventing right down to f/8 ended in a noticeable development in each distinction and element. At 400mm it used to be a an identical tale, with f/6.3 giving first rate effects and f/8 making issues even higher. I will fortuitously shoot wide-open all through the focal vary however preventing down is helping a little bit. In case you in reality want intensity of box you’ll quit down additional however you’ll be able to lose one of the most general element in no time.

Regardless, I used to be inspired with how excellent this lens’ corners have been for the reason that APS-C Fujifilm sensor simplest makes use of mild from the extra central “candy spot” of the full-frame symbol circle projected into the digicam. Alternatively, it is under no circumstances a vivid lens, and I incessantly had to make use of a better ISO than I would in most cases wish to. I’d imagine how low mild you’ll be able to be taking pictures, and the way keen you’re to compromise some symbol high quality in the ones stipulations in comparison to a sooner, however costlier lens.
Sigma 100-400mm f/5-6.3 DG DN OS Fresh: A Complete-Body Compromise
To start with, I believed {that a} full-frame lens at the smaller Fujifilm frame can be a deficient stop-gap measure for Sigma, until it might create a unique lens purpose-built for the X-mount. Actually, the choices are sparse which makes all of it too simple to suggest. The Fujifilm XF 100-400mm is a brilliant lens however it is large, heavy and a little bit vivid. It is usually dramatically costlier.
The Sigma 100-400mm is not a stunning lens in any way and has some compromises, but it provides some superb sharpness and excellent general optical efficiency with out breaking the financial institution or the perimeters. It can be a stop-gap in the end, however it is highest for the possible natural world or motion shooter on the cheap because it prices simply $949.
Are there any choices?
The aforementioned Fujifilm XF 100-400mm f/4.5-5.6 is a forged possibility, priced at a hefty $1,899. Its linear autofocus motor is for sure rapid and could also be value it in tricky scenarios.
It’s essential to additionally cross with the much more reasonably priced Fujifilm XF 75-300mm f/4-5.6, however you’ll be able to surrender essential lengthy achieve.
must you purchase it?
Sure. The Fujifilm X gadget lacks a variety of telephoto zooms. Any further choices are welcome and Sigma supplies excellent pictures.