ASCII power review
It is the best matching lens for “28-70mm F2.8 DG DN” and “fp L”
Updated at 10:00 on August 5, 2022
The “16-28mm F2.8 DG DN” released by Sigma is a compact ultra-wide-angle zoom with a large F2.8 fixed aperture that supports full size.
In addition to the Sony E head, the L Leica + Panasonic + SIGMA head is available. So this time, it seems to be compatible with the “fp L” ultra-compact invisible camera that is equipped with a full-size element with 61 million pixels, standard zoom “28-70mm F2.8 DG DN” with a similar concept let me introduce you.
High-performance compact lens Two brothers focused on Sigma
Covers two 16-70mm lenses at F2.8! Can make 900 grams
Sigma’s current range of lenses are “Art”, which is larger but emphasizes prescriptive power anyway, “Contemporary”, which is compact, lightweight and versatile while maintaining optical performance, and “Sport”, which has a range of telephoto lenses . Approx. to 3 strings. Both the “16-28mm F2.8 DG DN” and the “28-70mm F2.8 DG DN” are “contemporaries”.
Looking at the specifications, the “16-28mm F2.8 DG DN” has a maximum diameter of 77.2mm, an overall length of 100.6mm, a filter diameter of 72mm and a weight of 450g. The shortest shooting distance is 25cm and the maximum shooting magnification is 1:5.6 (about 0.18x). It also features an internal zoom, so that the overall length does not change even if the focal length is changed.
The “28-70mm F2.8 DG DN” has a maximum diameter of 72.2mm and a total length of 101.5mm, which is almost the same as the size of “16-28mm F2.8 DG DN”. The filter has a diameter of 67 mm and a weight of 470 grams. The shortest shooting distance is 19cm on the wide-angle side and 38cm on the telephoto side, and the maximum shooting magnification is 1:3.3 (approx. 0.3x) on the wide-angle side and 1:4.6 (approx. 0.22x) on the telephoto side.
Both lenses use plastic for the lens tube, but they don’t look cheap, and they come with an AF/MF switch and a custom lens cap. Above all, although the zoom zoom is slightly lower than the general open F2.8 zoom, called Daisangen, it is very compact and lightweight, which is the biggest attraction.
Descriptive power is really quality
Ambient light intensity matches well
Next, let’s check the image quality. When the two lenses are connected to Sigma “fp L”, the user cannot adjust the optical correction of the lens for distortion and lateral chromatic aberration, diffraction off, ambient lighting and color shading are AUTO. Unless otherwise specified, all posted examples have been taken with lens aberration correction set to default.
It can be said that the direction of view of both lenses is roughly the same, but the amount of ambient light is slightly improved from F4 at the maximum aperture of F2.8 across the entire zoom range, and F5.6 onwards has been virtually eliminated.
As a test, when ambient light correction is off, ambient light drops are more visible when the aperture is wide open, so you can see that a small amount of light is intentionally left in.
What was interesting at the time was that there was a difference depending on the lens and the focal length. DN, the degree of decrease in light intensity without correction is different. However, the corrected image shows approximately the same amount of light drop. From this, it can be seen that a sigma-like “appropriate correction” is made to each lens.
Resolution is also sharp in the middle of the widest aperture and peaks around F5.6-8. From about F16, the accuracy drops slightly due to yaw effects. Additionally, both lenses felt sharper on the wide-angle side than on the telephoto side.
The peripheral areas are a little weak up to F4, but they improve around F5.6 to F5.8. After f / 16, the yaw effect is the same as in the center. In any case, the image is not distorted, so there is no need to worry.
If you turn on the correction to reduce the resolution due to diffraction, it will be improved to a satisfactory level.
As you can see from the fact that the user can’t stop the distortion, which is a concern for the ultra-wide-angle lens, it’s well-corrected.
As an impression of the actual shooting with both lenses, the “16-28mm F2.8 DG DN” has a strong viewing angle that emphasizes the unique ultra-wide angle perspective, and is an honor seeker without imaging peripheral distortion or disturbance. I was a little worried about shadows due to the backlighting, but I was able to deal with it simply by changing the position of the light source a bit.
Perhaps because the zoom ratio is a bit low, it felt like a fixed focal length lens.
On the other hand, the “28-70mm F2.8 DG DN” might look a little narrow on the wide-angle side compared to a standard zoom that starts at 24mm, but it looks like a lens with a maximum aperture of F4 or higher, bokeh that uses the maximum aperture of F2.8. I am thankful that I was able to enjoy zoom shooting not at this height, but you can get as close as 38cm even at the end of the zoom, so you can take close-up photos.
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