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IT 168 evaluation pocket telephoto has been loved by the majority of digital camera users because of its portability, portability and high optical zoom, and has a very mature and stable market user base. Therefore, every year, major manufacturers will launch new products in this product line and continue to innovate and forge ahead.
▲ Evolution of telephoto zoom magnification of steel cannon; DC evaluation of four brands.
In the pocket telephoto digital camera product of 20 1 1, the zoom ratio is further upgraded, so can it provide users with a better shooting experience behind the upgrade? This time, we selected four small steel cannon products with different scales released by 20 1 1. The minimum zoom ratio is WX 10, the maximum zoom ratio is S9 100 band 18 optical zoom, and the other two products are 0/2.5 times that of Olympus/KLOC-0.
▲ Sony WX10 (7x optical zoom)
▲ Olympus SX20 (12.5x optical zoom)
▲ Canon SX 220 (14x optical zoom)
▲ Nikon S9100 (18x optical zoom)
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WX 10 Minimum S9 100 is the farthest lens.
The appearance of the four products in this competition has not been particularly improved, basically continuing the design style of independent brands. The color of the fuselage is not unusual, and there are not many optional colors. Basically, it is a calm route. It can be seen from the comparison of the original proportion of the fuselage that Sony WX 10 is the smallest and thinnest.
▲ Sony WX 10 is the smallest.
For pocket telephoto products, we actually choose products with larger zoom ratio in order to shoot farther, so the framing range is naturally the focus of our attention. From the comparison of the framing ranges of the following four products, it can be seen that there is still a big gap between the framing ranges of SZ20 12.5 times optical zoom and WX10.7 times optical zoom. However, the difference between SX220 with 14 times dimming and S9 100 with 18 times dimming and SZ20 with higher zoom ratio is not particularly obvious. As far as the current products are concerned, having a larger zoom ratio has not had much impact on our actual framing.
▲ Comparative display diagram of the framing range of four products.
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The actual resolution of SX220 is better.
After comparing the visual range, of course, we are more concerned about the performance of the camera in terms of resolution, because it is related to whether we can obtain clear and sharp imaging effects. From the following data, we can see that the resolution performance of SZ20 is better than other products, even surpassing that of SLR products, but its actual image quality is not as good as the data. The trace of sharpening in the machine is also very obvious, so the actual imaging effect is not proportional to its super high data performance. Combined with the actual visual resolution sample screenshots of the wide-angle end and telephoto end, although there are serious internal sharpening phenomena in several products, the picture definition of Canon SX220 is relatively better, which will be more obvious in the later definition comparison.
▲ Comparison chart of wide-angle resolution of four products
▲ Comparison chart of telephoto end resolution of four products
▲ Comparative display of wide-angle sharpness visual proofs of four products.
▲ Comparative display of visual proofs of telephoto sharpness of four products.
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SX220 has the finest picture quality.
We use four kinds of small steel guns respectively.
In order to observe its performance in detail, an actual sample was taken under ISO200 file, and its four parts were intercepted by 100%.
▲ Schematic diagram of interception position with resolution of 100%
As can be seen from the following 100% screenshot, SX220 has the best detail expression ability among the four products, and the other three products have more obvious influence on image quality due to in-machine sharpening.
▲ Comparative display of four product definition screenshots.
abstract
From the test results of resolution and definition, it can be concluded that the size of pocket telephoto products has shrunk because of the pursuit of better parametric performance, but its image quality has been affected by hardware slimming, and the final image quality is not particularly satisfactory. Pocket telephoto products give up finer image quality performance and pursue the portability of products too much. Of course, this is also due to the needs of users. When you can't shoot and shoot well at the same time, what choice will you make? The author believes that as consumers, we should not blindly pursue higher parameters, and the final image quality is more important. Therefore, when choosing pocket telephoto products, we should consider its all-round comprehensive performance, rather than just focusing on its high zoom ratio under small size.