This article comes from Jiayou Online
On February 18, 2020, Olympus announced the new lens M.Zuiko Digital ED 12-45mm F4.0 PRO. This lens is Olympus’s lightest standard zoom lens so far, covering the focal length from 24mm at the wide-angle end to 90mm at the telephoto end. It is 63.4mmx70 mm in size and weighs about 254g. The lens has the characteristics of dustproof, waterproof and splashproof, low temperature resistance, etc., with the same three-proof E-M5 Mark III body, it can easily cope with the challenges of various harsh environments and meet the various needs of professional photographers in different shooting situations . In addition, the magnification of this lens is up to 0.5 times, which has good macro performance. What is the actual performance? Let us take a look at how it feels to use.
Design and workmanship comments
Olympus 12-45mm F4.0 PRO is a standard zoom lens, equivalent to 24-90mm focal length. The lens uses an external zoom design, which is the shortest at the 24mm end, and the lens group can be completely stored in the lens barrel.
At 45mm, Olympus 12-45mm F4. 0 PRO stretches the longest, and the overall shape is still more coordinated at this time.
The front of the lens is the focus ring, and the rear is the zoom ring. They are all made of metal with excellent hand feeling. It is worth mentioning that the Olympus 12-45mm F4.0 PRO does not use the focus ring common to other PRO series lenses to switch manual focus design, nor does it provide a manual auto focus switch button on the lens, so if we To switch the camera from auto focus to manual focus, you need to enter the camera’s menu to adjust. The reason is nothing more than the design starting point is to achieve a smaller size and weight while maintaining a high level of performance, so it is easy to understand.
front, the diameter of this lens is 58mm, which is a common specification , To facilitate the selection of filters.
The rear of the lens, this lens is a professional positioning product, naturally Metal material is also used, so the reliability and durability are beyond doubt.
The lens nameplate is made of metal, although the design emphasizes light weight, However, there is no compromise on the manufacturing quality of this lens, which is worthy of recognition.
In addition, this lens also supports drip-proof and dust-proof design. With the Olympus body, it can shoot in harsh environments.
lens and professional-level OM-D E-M1 Mark III Matching, coordination is OK, but the better combination must be the E-M5 series, or the lighter PEN series body.
Finally, let’s take a look at the size of this lens. Just about 2/3 of a Coke, “It’s just one word-exquisite.”
From the design point of view, Olympus 12-45mm F4 .0 PRO can be regarded as a relatively distinctive lens, instead of adopting the idea of “big and complete”, instead it chose a “small and beautiful” refined route. Nowadays, when the lens design is blindly large-scale, it can be regarded as a clear stream. In terms of manufacturing, although it is a product that emphasizes lightweight, the Olympus 12-45mm F4.0 PRO has not compromised quality at all, and the feel is still “PRO”.
Sharpness performance evaluation
Sharpness is undoubtedly the most important indicator of a lens. Next, we will take a look at the real shot + 100% magnified slice method. Look at the sharpness performance of Olympus 12-45mm F4.0 PRO.
First is the wide-angle end of 12mm:
Then the telephoto end is 45mm:
From the actual shooting performance See, Olympus 12-45mm F4.0 PRO has good picture sharpness regardless of the wide-angle or telephoto end. The full-open aperture is available, and the image quality between the edges and the center is not much different, and the image field is very flat. . The best aperture should be around F5.6, after F8, the image quality will be affected by diffraction. On the whole, the sharpness performance of this lens is still very good, it can be said to live up to the name of “PRO”.
Anti-dispersion performance evaluation
We also used the method of real shot + 100% magnified slices to take a look at the anti-dispersion performance of this lens. The first is the 12mm end:
then the 45mm end:
, you can see that Olympus 12-45mm F4.0 PRO has a little purple fringing at both ends of the lens when the aperture is fully opened. Appears, it can be eliminated by reducing it slightly to F5.6. It should be said that this kind of anti-dispersion level is still good. It can be solved with a little attention daily or simple adjustment in the later stage, and it will not affect our shooting.
distortion performance evaluation
From the actual shooting performance, the 12-45mm F4.0 PRO has a certain barrel distortion at the wide-angle end, but it is difficult to detect the distortion at the telephoto end 45mm The presence. This kind of distortion is not necessary for daily shooting, but if it is serious architectural photography, we still need to make corresponding adjustments later.
Vignette performance evaluation
Next, let’s take a look at the vignetting performance of this lens, first at the 12mm end:
then the 45mm end:
It can be seen that the Olympus 12-45mm F4.0 PRO has a certain vignetting at F4 full aperture, but it is slightly smaller F5.6 can be completely resolved. Furthermore, vignetting may be the easiest problem to solve in the digital age, so you don’t need to care at all.
Other evaluation content
In addition, whether this lens is 12mm or 45mm, the maximum magnification can reach 0.5 times, which can be used as a small macro lens.
45mm end closest focusing distance Shooting effect
45mm Shooting effect at the shortest focusing distance at the end
Shoot at the shortest focusing distance at the wide-angle end , Blurring effect is easy to appear, and the performance of out-of-focus spots is also good. In addition, through a period of use, the focusing speed of this lens is also very satisfying. Whether it is daily shooting or close-up shooting, it is very resolute and fast
After a period of trial, Olympus 12-45mm F4.0 PRO left a very good impression on me: In today’s “big is better” market environment, it has made a small and exquisite one. A very PRO lens in all aspects. If you are looking for equivalent aperture and strong blur, obviously this lens is not your food; but if you want a small size, exquisite workmanship, and excellent picture quality, you can take it to get off work every day and match yours OM-D, PEN series of high-quality lenses, then Olympus 12-45mm F4.0 PRO may be one of the few options that can meet your needs.
More evaluation samples
F4 1/320 ISO200
F4 1/200 ISO200
F4 1/640 ISO200
F5.6 1/1250 ISO200
F5.6 1/80 ISO250
F5.6 1/80 ISO640
F5.6 1/8000 ISO200
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