Nikon D800 vs. Nikon D4 High ISO (RAW and JPEG) image comparison test done at focus-numerique (French Website), Nikon D800 images are re-sized to match Nikon D4 resolution.
NEF files processed with Adobe Lightroom 4 (default settings)
Results are remarkable for a 36 megapixel sensor, now see (below) JPEG comparison, Images of D4 are bit soft at High ISO.
Nikon D800 The best overall sensor score ever measured on DxOMark
Few days ago we have published the news Nikon D4 at DxMark Lab, Now its time for Megapixel monster Nikon D800, , the overall score of Nikon D800 is 95 – D800’s Overall score is the best that has ever been achieved, higher score than the Phase One IQ180 digital back
According to latest rumors Sony is currently testing a prototype of a Full Frame square sensor SLT (36mm X 36mm) , the new 36mm square format allows you to select between different formats and all current Alpha and Minolta Full Frames lenses will work with without any issue.
Rumored specification of Sony A1S
37 Megapixel, 36mm x 36mm square sensor
Works with all current Alpha mount lenses
Biggest camera of Sony in terms of size.
The SLT technology permits the camera to be smaller than it would have been with the classical mirror box and optical viewfinder technology
DxOLab tested the Nikon D4, the overall score of Nikon D4 sensor is 89. Nikon D4 is the best Full-Frame camera score ever measured on DxOMark. The Nikon D4 placed 2nd (based on Overall score), just 2 point behind the medium format phase-one, but its really interesting to see Nikon D3s is still the undisputed king of low light photography.
According to our user comments and emails the expected time slots for canon 650D / T4i announcement in 2012 – March/April or May (see here)– Aug/Sep, the new 650D / T4i will arrive with new DIGIC V image processor new 18.1 Mp sensor, new autofocus feature for video recording, touchscreen and built in WiFi.
We will update you soon as we get any new information, for latest updates and rumors follow us on Facebook
Comparison details
The Nikon D800 have a Full-Frame sensor (size is 24x36mm) and the other two models have medium format sensor (Size 33x44mm). The lens(s) are also different, Mamiya RZ back with a 40 megapixel Leaf Aptus-II 8 with 90 mm f / 3,5 Mamiya the Nikon D800 with 50 mm f / 1.4 AF-S and the Pentax 645D with 55 mm f / 2.8. The samples were taken at 200 lux illumination, the ISO of 645D and D800 is set to 100, Mamiya ISO set to 200.
Nikon D800 – Medium format Killer?
Image credit - focus-numerique
Only the Leaf backs captures the pinstripes of the ticket.
Nikon D800 image quality look better in the sample above compared to Pentax 645D and Leaf Aptus-II 8 image quality is better than Nikon D800.
Image Credit - focus-numerique
from focus-numerique (translated by google)
we can see some demosaicing problems on texture of the book, some areas containing more than simply no details. Note that this phenomenon is not unique to Nikon, other Canon bodies, Sony have the same symptoms. At Pentax, the 645D offers an image with a bit more relief, the level of detail is a little higher and overall the micro-contrast is more important. However, it is the Aptus-II 8 wins this comparison hands down first with an excellent rendering of matter on the finest details, the difference in rendering is really impressive.
Low Light: ISO 6400 Video Samples – Canon 5D Mark III
Quick low light with the Canon 5D Mark 3 in low light. Every shot in this video was filmed with a shutter speed of 50, F/2.8 and at ISO 6400.
Please notice: This was just a quick test. A longer low light short film wll come out in the next few weeks!
Canon 5D Mark III: Timelapse Test
Quick time lapse test with the new Canon 5D Mk3. The special motion blur look was created by using ND filters to shoot with a longer exposure than usual in daylight.
We changed the contrast and colors a little bit in Adobe After Effects because it looked too flat and the weather was really sad and grey…
2K video resolution: 2048×853
Lenses: Canon 85mm F/1.8, 15mm F/2.8
+ one more Canon 5D Mark III: Photo Shoot
Behind the scenes at a sexy photo shoot under low light conditions with the brand new Canon 5D Mark III.
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According to latest rumors Sony is currently testing a prototype of a Full Frame square sensor SLT (36mm X 36mm) , the new 36mm square format allows you to select between different formats and all current Alpha and Minolta Full Frames lenses will work with without any issue.
DxOLab tested the 
According to our user comments and emails the expected time slots for 
I was waiting for Nikon D800E vs. Pentax 645D vs. Leaf Aptus-II 8, but let’s have a look at 
