Sony unveils new cameras A77 + others
Excerpts below, but first my comment. I guess I never really understood how the mirror works in relation to autofocus. Why is autofocus eliminated if the mirror is up?
Sony will unveil four cameras and a video camcorder today, including one that targets serious photographers.
The issues with Japanese camera production from the tsunami are now in the past, says Christopher Chute, an analyst at researcher IDC.
Sony's $1,399 SLT-A77 digital SLR (body only) boasts a 24-megapixel image sensor, which is substantially larger than other cameras of its class. It can shoot up to 12 frames per second and produce video clips up to 29 minutes long while constantly auto-focusing.
Canon rules the lucrative digital SLR market, commanding a 46% share in 2010 and 19% of the overall camera market, which includes low-cost point-and-shoot models, according to researcher IDC. Nikon has a 33% share of SLRs and 17% overall; Sony is at 12% and 16%.
With the A77, Sony has its first serious camera for pros and prosumers. Pop Photo tech editor Philip Ryan calls it a "breakthrough" that "shows a real commitment to high-level imaging."
The breakthrough comes in the form of a "translucent" mirror. Traditional SLRs use a mirror to compose the image and reflect it back through the viewfinder. During "live view" video making, the mirror moves out of the way, eliminating auto focus. Sony's solution is a see-through mirror that doesn't move.
#1. "RE: Sony unveils new cameras A77 + others " | In response to Reply # 0Leonard62 Nikonian since 15th Mar 2009Wed 24-Aug-11 10:23 PM
The new Sony A77 body sounds very good and at a decent price point. However the "translucent" mirror as Sony calls it is not new. It is actually a pellicle mirror and was used by Canon in a few of their film bodies as far back as 1965 and more recent models like the EOS 1N RS in 1994. In those models the advantages were no mirror slap and very high speed shooting. Also because of no mirror slap the cameras were very quiet. In todays digital cameras live view, autofocus and metering advances will be furthered. Of course there are disadvantages like keeping the mirror perfectly clean. Nikon also had one model in the F3 HS. Time will tell how popular this design becomes. If history is any indication, maybe not so much.
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#2. "RE: Sony unveils new cameras A77 + others " | In response to Reply # 0Captain Rich Nikonian since 25th May 2006Fri 26-Aug-11 08:18 PM
I thought the NEX-7 was the most exciting part of Sony's announcement. It seemed like they were listening to the enthusiasts, not the "gimmicks" crowd. Taking their announcement at face value, it looks like the NEX-7 has just about everything I've been saying I want in a smaller camera. I just wish the viewfinder were a true optical finder.