Nikon D400 may arrive at sep 2012 (Photokina) according to latest rumors coming from Nasim Mansurov, he also posted the D400 specification on his blog received for multiple sources, Based on rumored specification the D400 will arrive with same Nikon D3200 24 Mp DX format sensor, but it will have Advanced AF system, faster fps, Mag alloy Weather proof body, CF and SD card slot and longer battery life.
Nikon D400 rumored specification
Sensor: 24.2 MP DX CMOS, 3.82µ pixel pitch (same as on the D3200)
Native ISO Sensitivity: 100-6,400, Boost Low ISO: 50, Boost High ISO: 12,800-25,600
EXPEED 3 image processor
Shutter: Up to 1/8000 and 30 sec exposure
Speed: 8 FPS, 9 FPS with optional battery pack and Nikon D4 or alkaline batteries
Metering System: 3D Color Matrix Meter III with face recognition
Autofocus System: Advanced Multi-CAM 3500DX with 51 focus points and 15 cross-type sensors
AF Detection: Up to f/8 with 9 focus points (5 in the center, 2 on the left and right)
Dust Reduction: Yes
Weather Sealing/Protection: Yes
Body Build: Full Magnesium Alloy
White Balance: New White Balance System
Shutter Durability: 200,000 cycles, self-diagnostic shutter
Camera Lag: 0.012 seconds
Storage: 1x CF slot and 1x SD slot
Viewfinder Coverage: 100%
Viewfinder Magnification: 0.94x Approx.
Exposure Meter: 91,000 pixel RGB sensor
Built-in Flash: Yes, with Commander Mode, full CLS compatibility
LCD Screen: 3.2 inch diagonal with 921,000 dots
Movie Modes: Full 1080p HD @ 30 fps max
Movie Exposure Control: Full
Movie Recording Limit: 30 minutes @ 30p, 20 minutes @ 24p
Movie Output: MOV, Compressed and Uncompressed
In-Camera HDR Capability: Yes
Two Live View Modes: One for photography and one for videography
GPS: Not built-in, requires GP-1 GPS unit
Battery Type: EN-EL15
Battery Life: ~900 shots
USB Standard: 3.0
Weight: 800g (body only)
Price: $1,799 MSRP
So the List of DX and FX format camera nikon is expected to announce this year is
1. Nikon D5200
2. Nikon D7100
3. Nikon D600 and
4. Nikon D400
src – Nasim Mansurov