Coke section upgrade again! Evaluation of Sirui 35mmf1.8 1.33x deformable lens

When it comes to deformable lenses, our first impression is that they are expensive, bulky and professional, and they have little to do with ordinary photography enthusiasts. But Sinai’s wide screen deformable lens released this year broke this stereotype. The 50 mm f1.8 1.33x wide screen deformable lens has attracted the attention of photography enthusiasts since it was put into the market. Overseas crowdfunding has even achieved a sales volume of 1.3 million US dollars. Only 560g weight and 4599 yuan domestic price are of high cost performance. < / P > < p > since the launch of the Serie 50 deformable lens, we are all concerned about whether there are other deformable lenses in focus. As a result, Sirui has brought us 35mm f1.81.33x wide screen deformable lens, which gives photography enthusiasts another choice in this kind of lens. With different focal segments, they can create more freely and obtain different display areas and depth of field effects < / P > < p > compared with 50 mm focal length, 35mm focal length has a wider viewing angle and a wider picture area can accommodate more shooting materials. Under 35mm wide-angle vision, the horizontal field of view can be increased by 33% by using this lens, which is equivalent to the angle of view of 26.3mm lens. The depth of field is more natural and the virtual is softer. In addition, the unique film texture elements and exquisite optical technology of the Sirui deformable lens make it easy for the public photography enthusiasts to create professional film and television works. The Sirui 35mm f1.8 1.33x wide screen deformation lens is made of aviation grade aluminum alloy and processed by high-precision CNC technology. The overall workmanship is very exquisite, and the lens is full of texture. It is very comfortable to hold it in your hand and use enough materials. At the bottom of the lens near the bayonet is the diaphragm ring, and the front is the focusing ring. The aperture ring and focusing ring adopt the stepless adjustment, the gear surface is wider than the 50mm deformation lens, and the anti-skid tooth design is added. In addition, it is equipped with a follow-up tooth and an aperture adjusting gear, which is conducive to the driving of the focus follower and ensures smooth and comfortable adjusting handle. < / P > < p > because it is a deformable lens, the front lens set of the Siri 35mm f1.81.33x is close to the square. Through the front lens group, we can see the elliptical lens and diaphragm ring inside the lens. < / P > < p > due to the unique optical deformation principle, this lens can directly shoot 2.4:1 film wide screen ratio works under the conventional frame. Compared with the ordinary lens for clipping the mask, this lens can maximize the sensor area to restore excellent image quality, without cutting, and without wasting edge material, it can output a wider picture frame work. < / P > < p > as we said just now, the image taken by this lens can obtain a wide screen ratio of 2.4:1, but the output ratio of most cameras is 16:9, so we need to restore the ratio of 2.4:1 of wide screen in post-processing. Simply put, set the long side of the video or photo to 133%, or set the short film to 75%. < / P > < p > it is worth mentioning that this lens provides a variety of bayonets for consumers to choose from, which is different from the previous one in which each bayonet corresponds to a product. The Siri 35mm / f1.81.33x deformable lens adopts the original M43 bayonet, but it can be adapted to Sony e, Nikon Z, Canon ef-m bayonet cameras through its matching adapter ring < / P > < p > this time, the author uses Panasonic G9, which is a M4 / 3 system non reflective camera, focal conversion coefficient is 2, the Sirui 35mm f1.81.33x lens is installed on the fuselage, and the equivalent focal length is 70mm. The equivalent focal length of the horizontal direction is 52.6 mm because of 33% more frames in the horizontal direction. < / P > < p > let’s take a look at the imaging performance of this lens. We take pictures in the Zhongguancun Online Image evaluation room with different apertures of this lens in a fixed scene to see its resolution performance. < / P > < p > through the test, we find that the resolution of the Sirui 35mm f1.81.33x lens is very high under the f1.8 aperture, and reaches the best when the aperture is F4, and the resolution performance is still excellent even in the case of F8 aperture. < / P > < p > when shooting high contrast objects with a large aperture lens, dispersion will appear. The most intuitive feeling is that the edge of the highlighted object appears purple or green. Surprisingly, the Sirui 35mm f1.81.33x lens performs well in dispersion control, and even when shooting a high contrast object such as a stainless steel tube under the maximum aperture, there is no dispersion. < / P > < p > from the two photos, this lens is very good for color restoration, bright and beautiful without distortion, and the transition between similar colors is natural and rich, which is due to the excellent coating technology of lens. < / P > < p > the details of Chinese ancient architecture are very rich, which is not a small test for the resolution of the lens. We have seen that in the laboratory environment, this deformable lens has good resolution performance. What about the real shooting environment? < / P > < p > the author uses F4 aperture to photograph the eaves of ancient buildings, and enlarge the picture 100%. We can see the painting patterns on the building. You can see the beard of the old man in the lower right corner and the wrinkles on his clothes. The resolution performance of the Sirui 35mm f1.81.33x lens is worthy of affirmation both in the test and in the actual shooting. The ratio of < / P > < p > 2.4:1 and the virtual effect of f1.8 make the picture produced by this lens very cinematic. Some scenes and themes that I often shoot have different feelings after using this deformable lens. For those who are used to 16:9, 4:3 and other scale images, using this lens will definitely bring you a new feeling. < / P > < p > due to its deformation characteristics, the spot outside the focus will be stretched vertically from a circle to an ellipse, which can not only make the background virtual but also highlight the main body, which can better render the atmosphere and enhance the film texture. < / P > < p > the optical structure and high-definition nano multi-layer coating specially designed for the deformable lens bring special glare drawing effect extending horizontally to this lens, and the effect is very obvious when shooting against the light source. This kind of light and shadow effect is also one of the common expression techniques in film shooting. < / P > < p > the inherent impression of bulky and high price of deformable lenses was broken by the appearance of Sinai products. After the 50 mm f1.8 1.33x deformable lens has won market success and consumer recognition, Sinai has launched the same excellent 35mm f1.81.33x deformable lens with a wider perspective, so that users can no longer be limited by a single focal length in image creation, and provide a richer choice of focal segments < / P > < p > at present, the Siri 35mm f1.8 lens has been widely used in the field of image creation The 1.33x deformable lens has been put on the shelves in China, and the pre-sale price is 4599 yuan. After the pre-sale, the original price will be restored to 5299 yuan. This price is believed to be within the expectation of many people, at least more affordable than the tens of thousands to hundreds of thousands of traditional deformable lenses. Continue ReadingDeveloped a “plug and play” solar power generation scheme, and “5B” won a $12 million round a financing