Is SLT dead or alive ?

Started Jan 17, 2014 | Discussions thread
Marty4650 Forum Pro • Posts: 15,112

I say this because a semi-translucent mirror may be totally unnecessary today with the advent of on chip PDAF technology.

Any way you slice it, the fixed mirror costs you 1/3 of a stop of light. Some people say the loss is even higher. This is why the NEX7 can outperform a SLT A77 at high ISO, even though they use the same sensor.

Eliminate the mirror completely (or flip it out of the way, as the Sony A580 did) and you get 100% of the light hitting the sensor.

Despite all this, my SLT A55 is still one of the very best cameras I have ever owned, and I will be enjoying using it for a very long time into the future.

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