Purple coating
16 Aperture Blade Deluxe Package
This is Tair300mm f4.5, is a communist cannon.
The Tair 300mm f4.5 ultra-long-focus lens was produced in the former Soviet Union in 1937 and won the prize at the Brussels Expo in Belgium in 1958. The time of production suspension was unknown, but the lens produced a total of two versions in 80 years of history. The two versions have different coatings (the first version is a purple single layer coating and the second version is a brown multi-layer coating), the focus ring color is different (because the first version is for the battlefield so the focus ring is conducive to covert Black, and the second version changed to bright silver, but the structure of the lens did not change in the slightest.
This lens was considered the most advanced lens at the time. How has the performance so far? Let us take a look:
First take the weakest coating out of it. The coating is used to prevent glare. A good coating will suppress glare or refract a large area of ​​glare into a little ghost. Now the best coating in this area. Pentax ABDII plating can do almost eliminate ghosting. How about the performance of our single layer coating?
F4.5
F8
F16
In front of the mobile phone flash, it can be seen that under the maximum aperture, the holy light spreads over the entire picture; when it shrinks to f8, the holy light becomes a starburst, and even the “big light phase†behind the bodhisattva's skull is shot. Shrink to f16 "big light phase" disappeared, 16-inch aperture blade luxury package to bring asshole-shaped star awning began gorgeous debut.
Then look at the long-range score:
F4.5
F8
The object is a building with a straight line distance of about 500 meters. Since the outdoor weather is too good, it can be seen that the picture shot with the maximum aperture under strong light will play a white fog, although the white fog interferes with the resolution but can be seen The inner image quality is basically still sharp; when the aperture is reduced to f8, the white fog phenomenon disappears, and the coke is also quite sharp. So close up?
F4.5
F8
This is a small red flower 6 meters away, because by the afternoon the light is no longer so strong, after the disappearance of the white mist appears in the picture is a very sharp image, regardless of the maximum aperture or f8, are quite sharp. In general, the old lens on a digital camera with a high pixel density would have a lens feeding pixel, but this lens did not show signs of fatigue at 36 million pixels. Next look at the dispersion:
F4.5
F8
The dispersion of most old lenses on digital cameras is quite serious, but the dispersion control of this lens can be compared with many lenses produced in the 21st century. In the maximum aperture, there is only a thin layer of lavender edges in the ACR. A slight adjustment can disappear, and the iris can completely see the dispersion after receiving the f8.
After watching the things in Jiao, we look at the focus:
F4.5
F8
However, the words were summed up as follows: knife sharpening milk. Even the f8 aperture does not appear nausea bilinear. Then look at the color level.
The figure above is specifically looking for a rainy day to shoot two white objects, you can see the white from the highlight to the matte, grayscale level is quite rich, this is the most advanced metaphysics, if you can not see that you are not suitable for photography , I am a good person to eat a loss, your photographic equipment 50 pounds I received. Finally look at the caliper:
The edge of the spot is oval, but it is still mellow, caliber erosion control is good, but it is estimated that Lao Maozi is rough, the spot is not pure, there is a small amount of impurities is annoying.
But after speaking for a long time, do you want to know how high the communist cannon is?
And intelligently I modified the shutter system to achieve the linkage of exposure and aperture contraction by pulling the trigger:
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