TECH SUPPORT Dust Barrier? Q. I’ve noticed that lately Sony is placing more and more emphasis on Translucent Mirror Technology in its DSLR line. Do the semi-transparent mirrors seal off the main image sensor completely from the rest of the camera? If so, does this technology innovation mean that Sony DSLR shooters don’t have to worry anymore about dust getting on their image sensors when changing lenses?
A.. We spoke with a top Sony tech maven and the answer is, not really. The mirror does not hermetically seal the sensor, and the shutter remains open even with the camera turned off, so there is still potential for dust to land there. We would actually be more careful than usual when changing lenses on a Sony hybrid DSLR. The camera shoots through the mirror, so image quality depends very much on its integrity. You don’t want dust—or worse, grit—on that mirror. Do you have Tech Support Question? Post it on our Facebook Page. |
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