Sony a99 vs Nikon D40x

This is a full comparison between the cameras Sony a99 and Nikon D40x. We compare them by looking at the categories you see below.

Manufacturing

Sony a99 is manufacturered by Sony but Nikon D40x is from Nikon. Both Sony and Nikon are well known brands though.

Type of camera

Sensors / crop factor

These cameras have different sensors. Sony a99 has a "Sony Full Frame"-sensor while Nikon D40x has a "Nikon DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)
Camera selection can affect the focal length (Nikon)

Resolution

Sony a99 has a 24 MP (Megapixels) resolution while Nikon D40x has 10 MP. If we break down this in more detail this is the data behind the numbers:

Sony a99 has a 139 % larger resolution than Nikon D40x. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony a99 has a larger ISO-range than Nikon D40x. Sony a99 has an ISO range that stretches from 100 to 25600 while Nikon D40x has 100 to 3200.

Autofocus and lens compatibility

There is a big difference between these two cameras. Sony a99 has a built-in autofocus motor but Nikon D40x does not. If you want to be able to use autofocus on Nikon D40x there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a99
Lens compatibility chart for Nikon D40x

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a99 can shoot up to 6 pictures per seconds and Nikon D40x can shoot up to 3 pictures per seconds.

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

When comparing these two cameras there is only one of them that can shoot movies and that is Sony a99. Unfortunately Nikon D40x does not support recording movies and movie clips.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Sony a99 weighs 812 gr (equal to 1.79 lb) which is 56% heavier than Nikon D40x and its 522 gr (or 1.15 lb).

Sony a99 vs Nikon D40x Specs

Below you will find the complete and detailed technical specs for both Sony a99 and Nikon D40x, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product	Sony a99	Nikon D40x
Name	Sony a99	Nikon D40x
Manufacturer	Sony	Nikon
Release Date and Price	Sony a99	Nikon D40x
Release Year	2012	2007
Release Date	2012-09-12	2007-03-06
MSRP	2799 USD	729 USD
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Camera Type	Sony a99	Nikon D40x
Camera Type	SLT	DSLR
Sensor	Sony a99	Nikon D40x
Sensor Size	Full Frame (approx 36 x 24 mm)	APS-C (approx 23.7 x 15.5 mm) Also known as "DX"
Sensor Type	CMOS	CCD
Resolution	6000 x 4000 pixels	3872 x 2592 pixels
Megapixels	24 MP	10 MP
Image Processor	Bionz	EXPEED
Image	Sony a99	Nikon D40x
ISO Range	100 - 25600	100 - 3200
White Balance Presets	8	6
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	No
Image Stabilization CIPA Rating	0 stops	0 stops
Uncompressed format	RAW	RAW
Optics & Focus	Sony a99	Nikon D40x
Autofocus Motor	Yes	No
Autofocus	Phase Detect Multi Area Selective Single Point Tracking Single Continuous Face Detection LiveView	Phase Detect Multi Area Selective Single Point Single Continuous
Focus Points	19	3
Lens Mount	Sony A See Compatible Lenses	Nikon F See Compatible Lenses
Focal Length Multiplier	Full frame No multiplier Example: 24 mm remains 24 mm 50 mm remains 50 mm 100 mm remains 100 mm 200 mm remains 200 mm	DX / APS-C (1.5x) 1.5x multiplier Example: 24 mm becomes 36 mm 50 mm becomes 75 mm 100 mm becomes 150 mm 200 mm becomes 300 mm
Screen & Viewfinder	Sony a99	Nikon D40x
Articulated LCD	Fully articulated	Fixed
Screen size	3”	2,5”
Screen dots	1229000	230000
Touch screen	No	No
Screen type	TFT Xtra Fine color LCD	N/A
Live view	Yes	No
Viewfinder Type	Electronic	Optical (pentamirror)
Viewfinder Coverage	100%	95%
Viewfinder Magnification	0.71×	0.8× (0.53× 35mm equiv.)
Viewfinder Resolution	N/A	N/A
Photography features	Sony a99	Nikon D40x
Frames per second	6 fps	3 fps
Minimum Shutter Speed	30 seconds	30 seconds
Maximum Shutter Speed	1/8000 seconds	1/4000 seconds
Built-in Flash	No	Yes
Built-in Flash Range	N/A	17 meters
External Flash	Yes	Yes
Self-Timer	Yes	Yes
Time-lapse	No	Yes
Metering modes	Multi Center Weighted Spot	Multi Center Weighted Spot
Exposure Compensation	+/- 5 (at 1/3 EV, 1/2 EV steps)	+/- 5 (at 1/3 EV steps)
Videography features	Sony a99	Nikon D40x
Video recording	Yes	No
Video format	MPEG4 H.264 AVCHD	N/A
Video resolution	1440 x 1080 1920 x 1080	N/A
Built-in Microphone	Yes	No
Built-in Speakers	Yes	No
Storage	Sony a99	Nikon D40x
Memory Card	Memory Stick Pro Duo SD/SDHC	SD/SDHC
Connectivity	Sony a99	Nikon D40x
HDMI Output	Yes	No
Microphone Port	No	No
Headphone Port	No	No
Wireless	No	No
Remote Control	Yes (Wired or Wireless (Optional))	Yes (Optional (ML-L3))
GPS	Yes Built-in	No
Body & Dimensions	Sony a99	Nikon D40x
Enviromentally sealed	Yes	No
Battery	Battery Pack	Battery Pack
Battery Details	Lithium-Ion NP-FM500H rechargeable battery & charger	Nikon EN-EL9 Lithium-Ion & charger included
Battery Life (CIPA)	500 shots	520 shots
Width	147 mm	124 mm
Height	111 mm	94 mm
Depth	78 mm	64 mm
Weight	812 gram	522 gram