EX2 has been announced

Started Jul 3, 2012 | Discussions thread
viking79
viking79 Forum Pro • Posts: 14,148
Re: This Is By Far Not The First BSI Sensored Camera and the IQ Advantage

Billx08 wrote:

viking79 wrote:

. . .

If BSI scales well to larger sensor (too expensive of technology right now) the performance gap between smaller BSI sensors and larger FSI sensors will narrow. If a BSI 4/3 sensor performs as well as a traditional APS-C sensor, it could hurt sales of APS-C. The only issue I see now is there is a cost trade off. If the BSI 4/3 sensor costs more than a traditional APS-C sensor, it makes more sense to use the larger traditional sensor.

Sorry, SLove was right and you're wrong about BSI technology. The fact is that it doesn't and can't scale to larger sensors. What BSI sensors offer is only greater utilization of the sensor's surface area, because the parts that block light (the wiring), preventing photons from being captured by the photosites are moved to the opposite side of the sensor. The area recaptured is primarily a function of the number of megapixels, proportional to the length or width of the sensor, not the area (length times width). The percentage of the sensor area that BSI recovers gets smaller and smaller as the sensor gets larger and larger.

Okay, fair enough, it impacts smaller pixels to a greater degree, so we will likely see less benefit for BSI at the 1/1.7" sensor size with 12 MP, as that is on the edge for BSI sensors, so the bottom line is we have to wait until it is released and see how image quality performs.

Don't think I am knocking the Sony, it looks great, but costs more than a NEX 5n with kit lens which will perform even better. The reason to buy the Sony is truly compact camera with fairly large sensor and good image quality.

The reason to buy something like the Samsung is it is much cheaper, offers an articulated screen, etc.

Eric
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