Sony unveiled the Sony Alpha SLT-A57K 16.1 MP Exmor DSLR HD Video Camera with a CMOS Sensor, Translucent Mirror Technology, 3D Sweep Panorama and 18-55mm Zoom Lens. The midrange d-SLR features a 16-megapixel, APS-C-sized sensor and is positioned to compete with Canon's EOS Rebel T3i and the Nikon's D5100. It can be pre-ordered on amazon already, for a price of $699.
Sony has announced the SLT-A57, a replacement for the original A55 fixed-mirror, electronic viewfinder DSLR. The A57 still features a 16MP sensor and LCD viewfinder but incorporates them into essentially the same body as the more expensive A65. Use of the latest Bionz processor means the A57 offers a wider-than-ever selection of photographic features and image processing modes. There's also an optional HVL-LE1 video-lighting LED panel.
16.1MP CMOS sensor
Latest Bionz processor
Larger, FM500H battery (same as A65 and A77)
Auto ISO 100-3200
1,440,000 dot LCD electronic viewfinder
920,000 dot bottom-hinged rear LCD
10 frame per second continuous shooting mode with AF (12fps at 8.4MP crop)
Picture Effects processing options
Clear View Zoom up-sizing digital zoom
Peaking manual focus guide overlay
1080p AVCHD 2.0 movies at 60 or 24 fps (50 or 25 in Europe)
Sadly, neither the Atomos Ninja 10-Bit Uncompressed to Apple ProRes Field Recorder nor the Black Magic HyperDeck Shuttle Raw Video HDMI Recorder supports 50frames and 60frames in Full-HD (1080p), so we are limited to the internal recordings on the camera. The Sony Alpha SLT-A57 supports AVCHD 2, so the video output should be decent. We are looking forward to example videos and will keep you posted on updates.
Video: Tsawout Spit – Gh2 Test (driftwood 176mb gop1 hack) from mark wyatt on Vimeo.
There seems to be no day without any surprises with the Panasonic GH2. The latest hot-shit is a hack to get 176Mbps AVCHD Intra up and running on the camera. Right now there's no possibility to record in 25p but there are attempts by vitaly and others, so let's see what the future holds.
What is AVCHD Intra?
"AVCHD Intra is usually recorded to extremely expensive P2 cards on high end cameras and here it is on a consumer camera with an SD card. [...] This is a codec that uses i-frames only unlike consumer AVCHD. Every frame from the sensor is stored. Standard AVCHD is a Long-GOP compression format and works by estimating and guessing at frames in-between ‘real’ images but Intra doesn’t. [...] AVCHD Intra is very good for heavy colour grading, fast action, hand held footage and green screen VFX work. You certainly get a better result from AVCHD Intra on the GH2 than by outputting from any DSLR’s HDMI feed to a external recorder as well." (via eosHD)
How does it compare?
eosHD has a comparison on AVCHD intra 100Mbps vs 24Mbit AVCHD.
And if that's not enough: there is even a 244Mbps AVCHD Intra Hack, as outlined by Driftwood: "It's stable and with good lighting conditions can look amazing."
eosHD recommends: "AVCHD Intra at such high bitrates can be tricky to edit so I recommend transcoding it to ProRes 4-4-4 first."