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Hoppala, Sony Alpha 33 & 55

Whoops, Sony Alpha 33 & 55



Frage von radneuerfinder:
August 2010

http://www.amateurphotographer.co.uk/news/new_sony_alpha_55_and_alpha_33_evf_dslrs_to_feature_fixed_translucent_mirror_news_301246.html

reports:

Phase Detection Auto Focus for video:
The Sony Alpha 55 Alpha 33 and will be the first to SonyDSLR cameras offer a video capture facility. By using what Sony calls "Translucent Mirror Technology ', phase detection autofocus during video recording becomes possible for the first time in a DSLR camera. The company says this new technology will significantly out-perform the contrast detection AF system currently used by other manufacturers for focusing during video capture.


and electronic viewfinder with 1.15 Megapixels:
In another unusual move Sonyhas its new DSLR models equipped with electronic viewfinders instead of optical finders. The 1:15 million-dot 'Tru-Finders' wants to provide 100% image coverage, a digital level gauge and grid line display options.



Antwort von radneuerfinder:

The cameras were introduced Sonyoffiziell of today:
http://www.photoscala.de/Artikel/Flotte-alpha-33-and-alpha-55-of-Sony

There is a first test synonymous, synonymous with original HD recordings to download:
http://www.dpreview.com/reviews/sonyslta55/page14.asp

The built-in image stabilizer works in the housing synonymous with video recordings.

Unfortunately, only in AVCHD 17Mbps, 12Mbps at MP4 (1440 x 1080)



Antwort von gast3:

why an LCD viewfinder and not the same as a "real" SLR viewfinder?
Canon has there hand on it? (EOS 1 RS, Eos RT)








Antwort von deti:

"Gast3" wrote:
why an LCD viewfinder and not the same as a "real" SLR viewfinder?
Canon has there hand on it? (EOS 1 RS, Eos RT)

No, but we can save the mirror and the prism.

Deti



Antwort von radneuerfinder:

Because that is too dark and still too much light from the sensor weglenkt.



Antwort von deti:

"Radneuerfinder" wrote:
Because that is too dark and still too much light from the sensor weglenkt.

Are we doing something not understood in terms of SLR cameras?

Deti



Antwort von gast3:

The new Sony's have even a (fixed) mirror, as once Canons flagship EOS1 RS example, or synonymous, the EOS RT, has worked very well, so was the view finder is not dark, a particularly bright focusing screen has offset this, these cams were, for example. with sports photographers very popular, high frame rates, no mirror rattle, no vibration .... blow by mirrors



Antwort von radneuerfinder:

Well, when the viewfinder is not dark then bring it on!

But when it is so easy, why then even takes in two of three Arri Alexa models an electronic viewfinder?



Antwort von gast3:

since you have the Manufacturer ask, is simply there for the developers not to act safely, an "oblique glass part" between the sensor and lens have to be and probably is the production of a high quality prism now synonymous expensive than such a display, which are now indeed very high resolution and therefore just as useful.

Would have only one idea is you now filming already through the mirror, can exploit the phase detection faster autofocus, why not use the same for manual focusing-synonymous during the shoot and during filming, the benefits of a true SLR viewfinder, such as when shooting with such a photo film clippers??




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