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E King of Detox Experience TourSTF (Smooth Transition Focus) - what Sony calls image smoothing technology, this FE 100mm F2.8 STF GM OSS master lens uses the APD apodization filter to handle the blurring effect of blurred edges. The matching 11-blade circular aperture is used to suppress lemon-like “point light source caliber erosion†that can occur on general lenses.
Sony official website
However, due to the relationship between the APD apodization filter, the original light flux of the 2.8 aperture directly becomes F5.6 light flux value. For convenience, the T value on the lens ring and Exif parameters are displayed and recorded as F. value.
Therefore, if you want to reflect the characteristics of this lens, as long as the more choice of a little light source background to shoot more prominent special soft effect. No matter whether it is in the foreground or out of focus, it can be well reflected. In addition to this special and perfect blur, whether you choose its macro segment 0.57 meters -1.0 meters, or 0.85mm-∞ can be achieved, but need to explain is that STF can only be between T5.6-T8, this point The lens also shows clearly, then what is the difference between the blur of T5.6 and the blur of T8?
Now please send a model group to show the effect of STF. The highlight of this background is actually a string of battery lights hanging from the leaves. It is shot in pure natural light and the focusing focal length is 0.57-1.0 meters. As for why the background looks dark, it is actually the result of my trick.
The comparison of the blur between T5.6 and T8 The comparison of the blur between T5.6 and T8
This group of shots is really tired, if you just tune to T5.6 to shoot, it is easy to halo spread completely into creamy, and the whole will be blurred in the background. The current photo light effect is the result of the distance between the lens and the hand being adjusted n times. Tuning into T6.3-T8 produces “smooth†fuzzy circular gradient effects “relativelyâ€, but at T8, the angularity of the spot becomes much more distinct.
Voting: Which one do you prefer for the STF smooth blur effect of T5.6 and T8, respectively? Everyone can write the results of the voting selection in the reply to this article.
Of course, there may not be many scenes of life in the scene of the scattered and beautiful point light source in addition to the road outside the street. What about the blur effect of the FE 100mm F2.8 STF GM OSS in a typical scenario? Now let's take a few different sets of scenes to feel.
The FE 100mm F2.8 STF GM OSS also achieved autofocus that was previously impossible with the Sony A bayonet 135mm F2.8 [T4.5] STF. And with nano-AR coating and ED low-dispersion lens, to improve the high-resolution features such as the center of the screen and edges.
When shooting still life, please note that the shooting surface needs to be perpendicular to the focusing surface. Otherwise, because the focal length of the lens itself is longer, when the calligraphy and painting is rewritten, as long as there is a slight inclination, it is easy to cause the central edge of the large aperture F (T value) to be slightly blistered. Case. Here HuiZongzong's “Book of Curse Seven-character Poetry Fans†and Que Shinan’s “The Anthology of the Epitaph of the Princess of South Anhui†were hand-held in a dimly lit Shanghai Museum (the museum has disabled the tripod and flash), but fortunately the FE 100mm F2.8 STF The GM OSS provides anti-shake, which can be blessed with my handheld shooting, otherwise it is impossible to complete this group of shots.
Summary: Who is the FE 100mm F2.8 STF GM OSS? I think it is suitable for portrait photographers who focus on blurry and perfect pursuit. At the same time, it requires you to have more portrait shooting experience and flash lighting experience. If a single lens FE 85mm F1.4 GM is used for comparison, then even if the FE 85mm F1.4 GM has a creamy blur, its point light source cannot achieve the point of FE 100mm F2.8 STF GM OSS. Light source smooth blur effect. However, it should be noted that due to the small amount of light transmitted by the FE 100mm F2.8 STF GM OSS, you may need a monopod when shooting portraits at night. For macro applications, its magnification is 0.14 (0.85mm-∞); 0.25 (0.57m-1.0m), it can meet the general macro needs, but it can not meet the macro needs of 1:1 .
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