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47

Making large semiconductor devices with no, or only a very small number, of defects is very hard. Smaller ones are much less demanding to make. In particular the yield – the proportion of the ones you make which are usable – for semiconductors drops as you try and make them larger. If the yield is low, then you have to make a lot of devices for each good ...


14

The first mainstream applications for electronic image sensors (be it Image-Orthicons, Vidicons, Plumbicons, or CCDs, or CMOS active pixel sensors, be it analog-electronic or digital workflows) were in video, not in still images. Video followed form factors similar to movie film. In movie film, 35mm (equivalent to full frame still) or even 70mm were ...


7

Because you specifically asked about history... I'd suggest: size, weight, & cost. All those considerations were equally true in the pre-digital (ie film) days. A popular film format was the 110 size. See: https://en.wikipedia.org/wiki/110_film The 110 film was cheaper, the cameras were cheaper, and many of the cameras were a lot smaller and lighter ...


7

Big sensors cost more than small sensors for more-or-less the same reason that big TVs cost more than small TVs. Compare a 30-inch TV and a 60-inch TV (about 75cm and 150cm, if you prefer). Miniaturization is no problem — we could make all of the parts of the 30-inch TV way smaller without running into any difficulty. The 30-inch TV costs less to make than ...


6

Long before digital, people sought to produce smaller film formats to address manufacturing, usability, and other cost-benefit issues, which are described in other answers. What is now known as "full frame" was once known as "miniature". If not for miniature and sub-miniature formats, we'd have to carry around cameras like this:


3

Pretty much all of the 1-series have an ethernet port that allows FTP over ethernet. The two most recent models are the EOS 1D X Mark II and the EOS 1D X. But that requires a wired connection to a network host. There are plenty of recent Canon models in several classes and price ranges that have WiFi capability. Some require an external WiFi adapter. Others ...


3

Apart from what has already been mentioned, there is a particularly good reason for making smaller sensors for DSLRs; It makes it easier to design cheaper and lighter lenses for the rapidly growing consumer market. But still of a high quality. When you make the sensor smaller, you can also make the mirror smaller, and then you can decrease the distance ...


1

More likely a problem with the shutter that doesn't completely uncover the sensor. From the look of it the curtain wouldn't remain horizontal and jams. Has the shutter noise changed lately?


1

Well, let me put it this way. Here is a photograph with a small sensor camera (1/2.3"), crop factor 5.6, and an APS-C class sensor (crop factor 1.66, slightly smaller than APS-C) in their maximum zoom position (which the big camera reaches only by using an 1.7× tele converter). The small camera has 3 times the effective focal length (600mm) of the large ...


1

Separate answer, since it is unrelated to the other: While full frame sensors offer much benefit to the enthusiast, artistic, and professional photographer, they also introduce drawbacks that are in many cases really unwanted by the casual user - and in some cases even by the professional artist or reporter for certain tasks: The maximum depth of field ...


1

Smaller sensors have higher production yields, and the electronics to process are lower cost. Double the sensor, and roughly square the processing power needed. The reality is that DX sensors are often higher resolution and greater dynamic range than films they are replacing.


1

About Four Thirds system: Before wide screen (16:9) monitors and televisions were popular, 4:3 monitors/televisions as the norm; so I guess it seems normal to have sensors which are compatible. The Micro Four Thirds system has a shorter registration distance (a/k/a flange focal distance), to reduce the weight (and price) for cameras, but uses the same ...


1

Without more information about what specific flash you are using and what settings are selected on the flash, it is hard to narrow down the possibilities of what might be causing your issue. The three most likely scenarios are probably: The flash you are using is not i-TTL compatible and is firing at full power when the camera is set to i-TTL. The settings ...


1

Does the lens make pictures you are pleased with & in particular do you notice the technical problems? If so then perhaps. If not then only if you are worried that this problem might somehow reduce the value of the lens & you plan to sell it at some point. A lens is just part of a machine for making pictures: if the pictures are fine the lens is ...


1

Another solution is to use a SD card with built-in Wifi (works in about any camera that takes SD cards). Some can upload images to the cloud. See here for some options.


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