In case of the D800 it is currently the best Dslr and by extention the best photo camera ever to exist.

One can't compare cameras for different purposes. For photographers who need fast series of many shots by any weather (action, sport etc) the D4 is much better camera. For those who need to shoot in low light, the D3s is still the king.

@ghkqn high pixel density is bad for low light, 16MP is nearly too much, 12MP and great performance up to ISO 25.600 and reasonable by 50k is what the world of photography now needs.

I really hope the Df will improve further Nikon's high ISO performance: if so, the price would be very reasonable.

Arguably one of the headline features is support for old non-AI lenses. These always worked on other Nikon DSLRs, but mount them on the Df and you'll enjoy full aperture metering in Aperture Priority or Manual that's equivalent to AI lenses. The lens focal length and maximum aperture can be programmed into the Df, allowing it to recognize the aperture and work out the right exposure.

http://www.cameralabs.com/reviews/Nikon_Df/

Other studio samples - http://www.ephotozine.com/article/nikon-df-digital-slr-sample-photos-23600

http://www.dpreview.com/galleries/reviewsamples/albums/nikon-df-samples-gallery#page=1

The biggest stumbling block to purchasing this camera is going to be its price. For about the same amount, you can buy a D800. For a lot less, you could buy a D610, which, let's face it, will do pretty much the same thing with even higher resolution. You are going to have to really like the retro controls and looks to spring for the higher priced Df.

http://aboutphotography-tomgrill.blogspot.ru/2013/12/nikon-df-hands-on-review.html

Image quality is the Df's strong suit - it combines an excellent sensor with a well worked-out JPEG engine, such that it can be depended on to take really strong images. Dynamic range is impressive, particularly at low ISO, while the high ISO performance is currently unsurpassed. The Df shares the flagship D4's image quality, making it one of the most adaptable cameras on the market.

http://www.dpreview.com/reviews/nikon-df

http://www.focus-numerique.com/test-1772/reflex-nikon-df-exposition-raw-13.html

http://www.thephoblographer.com/2014/01/13/review-nikon-df/

New DF firmware

Changes:

• When Press for Custom Setting f4 (Assign Fn button) , f5 (Assign preview button) , or f6 (Assign AE-L/AF-L button) was set to Preview, and the camera's Fn button, Pv button, or AE-L/AF-L button was pressed, while viewfinder shooting using a Speedlight SB-800, a preview was not displayed in the camera monitor and a modeling flash was not fired. This issue has been resolved.
• When a Speedlight that does not support Auto FP high-speed sync was used with Custom Setting e1 (Flash sync speed) set to 1/250 s (Auto FP), the maximum shutter speed was 1/200 s. This issue has been resolved.
• When images captured with Auto ISO sensitivity control in the shooting menu set to Off were displayed in ViewNX 2 or Capture NX 2, Auto (ISO XXX) was incorrectly displayed for ISO Sensitivity in Metadata. This issue has been resolved.

https://nikoneurope-en.custhelp.com/app/answers/detail/a_id/59154

@MikeLinn I saw that yesterday, that was one funny as review!

http://fstoppers.com/the-fstoppers-nikon-df-camera-hipster-review

http://www.photographyblog.com/previews/nikon_df_photos/

Offers an undeniably lovely old-school design, a plethora of customizable controls, a small and lightweight body (for a full-frame DSLR) and the same superlative image quality as the flagship D4 camera,

http://www.photographyblog.com/reviews/nikon_df_review/