LCD and Viewfinder
Nikon D5100 has a Fully Articulated 3″ LCD screen with a resolution of 921k dots. Both the screen size and the screen resolution is up to the standards of this class.
For those of you who loves shooting self portraits or group photos, Nikon D5100 will make your life easier with its Selfie friendly
D5100 has a built-in Optical (pentamirror) viewfinder. The viewfinder has a coverage of 95% and a magnification ratio of 0.52x. 95% coverage means that what you see in your viewfinder while shooting will slightly be different from the actual image.
Max Shutter speed
Nikon D5100 can shoot continuously at max speed of 4 fps and has max shutter speed of 1/4000 sec.
D5100 has a built-in flash, and it also has a flash shoe to mount your external flashes too.
Nikon D5100 features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 11 focus points and 1 of these sensors are of Cross-type. Cross-type sensors locks focus faster and more accurate compared to single type sensors.
Nikon D5100 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
With Nikon D5100, you can record your videos at a highest resolution of 1920 x 1080 at 30,25,24 fps and save in and MPEG-4 formats. Full HD resolution of Nikon D5100 will be adequate in most of the situations. But if you are after the highest resolution videos available, see our list of Top Cameras with 4K (Ultra-HD) Video.
D5100 has a built-in Mono microphone but no speaker. Nikon D5100 also has a port for an external microphone so you can record high quality sound with the help of an external microphone.
Connectivity and Storage
You can connect D5100 to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Battery Nikon D5100 is powered by battery which provides a shooting life of 660 according to CIPA standards.
Considering that the average battery life of DSLR type cameras is 883 shots, Nikon D5100 has a short battery life for its class so we strongly recommend D5100 owners to buy some extra batteries.
Battery Life Comparison in Entry-Level DSLR Cameras
Pentax K-x with its 1900shots is the model with longest battery life among Entry-Level DSLR cameras. Check the comparison of Nikon D5100 vs Pentax K-x or take a look at Longest Battery Life DSLR cameras list.
Nikon D5100 Features Compared to Main Competitors
You can download Nikon D5100's User Manual here