Japanese digital cameras are certainly the best sales in china, and brands such as gainni consoni fuss have produced many photographers and generated huge video markets. But there is no end to it, there is more or less a bug, and there has been a series of shorter cycles by manufacturers to strengthen the profit machine, and a different one has been created. This, of course, involves control of goods, and the quality of some of the famous machines is less stable. Today, let's talk about which ones have gone wrong in recent years. The purpose of this paper is to find a good way for consumers to buy from bugs, and there is no malice to discredit a product。
Canon 1dx series — motivated mechanical lubrication problem, low temperature unfocused
Perceptions: in 2016, the energy eos 1dx mark ii is already on the market, and the price is high, so there are also users who are thinking about starting the relatively cheap old-generation flagship class, which is a good idea and a good reason to think twice
The focus reflector is not out of line with the frame, and the light is not accessible
The 135mm flagship aircraft, dedicated to sports journalists, even though there have been instances of recall, in 2013 the japanese company yoshinaga announced the recall of some of the energy eos-1d x and eos-1d c digital counter-cameras in the chinese market, claiming that some of the energy eos-1d x and eos-1d c products had been worn down due to inadequate engine machine partial lubrication, leading to the blurring of the camera's image of failure to capture focal points. Fault phenomena include: 1. Autofocus (af) cannot focus (possibly caused by worn-out particles); 2. Images in the viewers are vague or unstable during the shoot. (overwhelming may occur) method of identifying the object product: eos-1d x: this may occur if the sixth place on the left side of the body number is any of the numbers “1-7”. Eos-1d c: this may occur if the number of the crew starts with the sixth to the left. It was also mentioned that the lack of focus in low-temperature conditions and the absence of a normal separation of the focus reflector (behind the frame) from the view reflector, resulting in the absence of light access to the focus module, resulted in a final solution being sent to the maintenance station to replace the entire reflector board。
Canon 750d/760d — optical cell white dot phenomenon
Perceptions: there's no sign of a 7xx photo problem, but it's too white for people suffering from intense phobia
Looks like there's something wrong with the plating
It's a three-digit primer. The author's 350d has so far changed the fast door only once, but the old series fell on the 7xx series. Officially, there were white dots inside the optical units in front of the imaging sensors last year, and overseas users described them more seriously as: there were problems in the canon t6s and t6i that we discovered (the us model of kana and 750d, respectively) that were initially thought to be ash or oil on the sensors, and then found that they could not be removed and that they were found under the microscope with many small spots. This process has raised the profile of the event of recall, noting that if the user discovers the following cmb sensors, whether during the required warranty period or outside the warranty period, the spare parts may be replaced free of charge after inspection, which may be considered to be a defect in the membrane plating process。
Sony a7 - green hat luminous
Views: if you really want to get the cheapest picture, you don't care what happens at night
I can't explain the green hat
A7 the cheapest full picture camera in the sony alpha series, which has no right value, should know that the full picture of gacanic, even the one-4000-second maximum, is not less than $10,000. A7 now has more than 7,000 airframes and about $5,500 in water. However, when many people bought a7 and took it out for an audition, they found a clear green hat phenomenon, with more than 30 of 100 photographs taken by users. In the light of the fact that there are too many facts, the photographers began to look for reasons, and found that most of this was the case at night when the lights were shot. The pattern of the "green hat" is that there's a green luminous gill around the light。
The test was performed, fe35, fe55 was more obvious, but it was better to switch to a-gate 24-70, and better to the a7r generation. Another test, a6000, nex 7, nex5, nex 6 to the other lenses of the e-cave, and the frenda side lens, is this problem, especially when night view is easy to hit. The remedy offered to lower the fast doors and lower isos, but it was not known whether each of the photographers would collapse if it was set in this way. Netizens summarised the alpha-type performance as follows: cmos, which uses seamless and marginal tilt techniques, and is the best off-line a7r, with almost no green hats; a7s, with low pixels, with almost no green hats; the worst in common cmos and a7, with low-intensity a7, with a green hat; and cmos, with no cleavages, with no a6000, with green hats, but not very serious. It still seems to be a problem with the fuselage, after all, the most we've talked about before is the violet phenomenon on the edge of the high contrast of light, the disease of digital cameras, but the dissipation of the green hat, as shown below, is certainly a hard wound。
Nicon d750 -- fast door component abnormal, dizziness
Perceptions: small probability events are less acceptable and perfectists are careful to enter
Following this spring, nicon's d75 was caught up in a recall event, and despite his sincerity, it was disappointing that d750 was the type of machine that was placed in high expectations by nicon and designers. Nicon claims that part of the d750 digital one-way back camera produced between october and november 2014 was not functioning properly during the shooting and that a dark corner appeared on the shot. It was confirmed that the d750 cameras produced between december 2014 and june 2015 were also found to be such. Therefore, the serial number of the product produced from december 2014 to june 2015 will be added to the target of the free-of-charge overhaul service at the d750 express. The nicon after-sales service indicated that the camera would be provided with free fast-door repairs, whether during the warranty period or not。
There are also foreign users who have the truth about the potential for dizziness in some of the specific angles of nicosia d750, initially identified as a result of the over-positioning of the focal sensor inside the mirror box, but the cause and course of occurrence have not been well explained. The solution under the liveview model was published by the polish d750 user piotrowsk: the problem disappeared when a small black cardboard/plastic plate covered the focus sensor module. A description of the cause of the partition is related to the focal sensor. It is also evident from two video clips that the flares actually appeared earlier in the picture, and that the angles were a distance from the light source. So whatever happens after the sale, this phenomenon has proven to be problematic in terms of quality control and original design。
Left is normal d750 focal sensor position
The laser light simulates the light path, ejecting from a large angle into the focal sensor module, and several resonance bands can be seen on the ccos projection。
At the bottom of the mirror (the top of the photo corresponds to the bottom of ccos) something reflected the light in advance. When the camera is lifted, the actual flares are launched into the sensor by the light source, which suggests that the blinding light spots may not come from ccos, but from other reflections。
Nicon's camera's curvature ring
Not to mention who's going to be comfortable, nicon's sickness, and what the photographers call the niconte patent. While some argue that the problem may be with glue (or both sides of the glue), there is also a disclaimer, since digital camera manufacturers are numerous and non-defunct, so it is not simply because of the glue problem, but probably because of the rubber material problem. The shape of the material is unstable and the area of the rubber skin is larger with the time taken, so that the rubber of the focal ring cannot be stuck in its original position and form a squeeze. The same is true of the rubber leather on the d3 and d700 machines, apparently because the rubber area has increased and it is not properly stuck in its original position, and even if the two heads are stuck, the middle will be highlighted, which is the real reason for the niconose, not the simple glue problem. Of course, some of sony's models have such problems, including the author's r1, as shown below。
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Foreign minister wu: the japanese buy new and old cameras, but when we look at the product controls described above, we have to face the reality that, in order to meet the costs, many japanese firms are no longer home-grown, so the quality is not as solid as before. Of course, this is not within the control of our consumers, and the only thing that can be done is to wait for the machine to be put on the market for some time, to look at the comments of the public and then buy them, and to make a formal presentation。
