This is very simple, if you are a Nikon shooter looking for a new camera then stop reading and buy this camera. It's that good.
This camera is brilliant to hold and use. Nikon has done it again and has made the user interface more usable and streamlined. What to change flash modes. Press the flash pop-up button and rotate the control wheel. Sweet. Want to change create and use a User defined mode? There are two. Set your mode up. Go to the menu and save it. To use it rotate the shooting mode dial to U1 or U2. Presto you are there. In the D300 and D700 you to have to setup things in the menu and switch in the menu. Also, there were 2 sets of things you could change and they were not all inclusive. It was all horribly confusing and I never used it. Speaking of shooting modes. There is now one position on the shooting mode dial for scene mode shooting. You change through the different scene modes with the control wheel and the type scene shows up on the back screen. Sweet. I can go on and on but needless to say Nikon have really improved their interface. One caveat, I don't think it is quite up to par with the GH1 to change exposure compensation (IMO the most important control) but still a huge step in the correct direction in handling. I like the handling of the D7000 better than either the D700/300.
Low Light Shooting
The D300 wasn't that great for Hi ISO. It shoots clean at 400 ISO and usable up to 1600. (The D90 and D300s were better) The D700 was fantastic. Clean at 1600 ISO and usable up to 6400. It opened up new worlds. The D7000 is close to the equal of the D700. Enough said. Just to give you an example. The bouquet toss at a reception is often done in poor light. By using 1600 instead of 400 you get the equivalent of 4 times more light. At ISO400 you flash may need to use 1/4 power and you can get 1 maybe 2 shots of the toss and catch before the flash needs to recharge. At ISO1600 your flash would only need to use 1/16th power and now you can get 5-6 shots. This is huge.
Like all modern DSLRs it takes great pictures. I don't pixel peep so I can't really say that I notice a difference between the pictures from the D7000 and any of my 12mp cameras. It makes really nice pictures and that is all I care about.
Useful Photography Features (Not Marketing Features)
--100% view finder! Big bright with 100% coverage. No more guessing of your framing. (It is not as bright as the D700. However, it is 100% vice 95%)
--2 SD slots - When your getting paid to shoot a wedding or any gig, my card broke is not an excuse. Very useful feature. For the home user put two smaller cards rather than one big card and save some money.
--Smaller and lighter than D300, D700, D3s, D3x- When you stand on your feet for 9 hours shooting the wedding and reception, you start to feel every ounce you are carrying. Often you will be carrying two bodies with a fast tele zoom and fast wide zoom. That starts to get heavy. Light weight here we come.
--2016-Segment RGB Meter- for spot on exposure and white balance--No one touches Nikon on this and this one is fantastic.
--1/8000th -- Very useful for shooting into the sun wide open with a bright lens
--1/250 -- Could be better (1/500th for D40) but could be much worse. Auto FP helps.
--Magnesium body and better sealing -- Shoot in dusty environments without messing up the inside your camera.
--Uses the ML-L3 infra red remote -- Small and cheap. IR sensor on the front and back of the camera.
--Autofocus focus motor for non-AF-S lenses
Marketing Features that will sometimes be Useful
--16Mp -- Nikon was obviously getting creamed in the marketing wars on this. This is going to lead to bigger files requiring larger hard drives and faster computers. Occasionally it will be useful if you can't frame as close as you would like and you need to crop or you need to print big. Alien Skin Blow Up 2, Image Resizing Plug-in Software for Photoshop, Macintosh & Windows and Genuine Fractals 6 Professional Edition 1-user Full are two very nice programs that can increase the size of your photos for printing large. 16 MP is nice by not necessary.
--39 Point Auto Focus -- To me in some ways this is better than the 51 point of the D300 and D700 as that gets too unwieldy. However, you really don't even need 39. However, still useful on occasion.
--6 frames per second-- I very rarely ever put my camera in 3 frames per second. When I do so it fills the card quickly. If you are shooting the big game then 6 is nice. Or it is nice for some cool special effects shots. Other than that you won't really find yourself using it that much.
The other thing I am not really going to dwell on is the video capabilities. In my opinion all the various video options are mostly marketing hype really targeted at a niche market. Shallow depth of field video is difficult and time consuming to shoot and edit properly. The average family home user has neither the time nor inclination to do this. With that said, it is nice to only have to carry one device to take still pictures and video. So I do enjoy that feature, however 1080 is not really necessary. In fact with up converting DVD players standard def is still very usable and takes up far less space. Suffice it to say that the video capabilities are very good and should do anything a home user would need it to do. Can be used for pro Videos as demonstrated by Chase Jarvis.
This is a very nice camera and it feels very solid in your hands. It feels far more substantial than the D40/D90 without feeling like a brick the way the D300/D700 do. I am sure the D300 has more marketing features than the D7000 but I would have to research them to figure out what they are. As for the lens, I am not really that hot on this lens. It will do fine but the Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras
is far more useful. Also, you can buy the Nikon 18-55mm f/3.5-5.6G AF-S DX VR Nikkor Zoom Lens
and [[ASIN:B000O161X0 Nikon 55-200mm f/4-5.6G ED IF AF-S DX VR [Vibration Reduction] Zoom Nikkor Lens]] for about the same price as the difference between this and the body only.
In the end it all comes down to what is important to you. Smaller weight and size is becoming much more important to me and this camera is a very good trade off of features for size and weight. Anything that is missing I don't even use so I am not sure what it may be. My D700 was recently stolen and while I miss it, the D7000 is a worthy replacement for it. I opted to get the D7000 and Panasonic GH2 and save the $300 difference for a lens.
--100% view finder!
--6 fps (7D is 8. However, I think this number is overhyped in most cases. Even shooting at 3 FPS will fill up you card with photos that look remarkably similar) 8+ is needed for professionals shooting professional sports. Not enthusiast shooting High School etc.
--16mp sensor (a marketing increase but still nice to allow some room for cropping)
--14 bit photos
--39 point auto focus sensors (19 cross point) this is a bit of a marketing thing but it is still nice and it does not matter about the 51 on D300s and above. Still very nice.
--2016 scene meter - compares against data base for WB setting and color settings
--Excellent battery life
--MD-11 Optional Battery Grip
--2 SD card slots for back up redundancy or double the card space! Outstanding
--Magnesium used to make camera stronger
--16mp senor (takes up more storage on your hard drive) (12mp JPG 3mb 12 mp RAW = 12 mb 16mp JPEG = 5 mb 16 mp RAW = 16 mb. This is for 12 bit. 14 bit would require more)
--Camera heavier than it used to be
--No swivel screen - after using the GH1 extensively you really miss this when shooting at weird angles. You especially miss it for macro photography.
--No full time live view - Ditto from above. Live view is what you see is what you get. Forgot to change white balance-- you will see that when people are yellow, blue or green. Have it set in manual and blowing everything out-- you'll see that as a white screen.
For the Nikon shooter this is a no brainer. If you are in the market for a camera, then skip the D300s. The D700 is getting long in the tooth and many people are buying the D7000 while waiting for D800. If you already own a D700 then this camera is a very good complement to it. Use the money you saved over the more expensive camera to buy a nice lens.
Here is a breakdown vs other Nikon DSLRs
D3100-- Two completely different classes with the D7000 being worth the difference in many. However at the end of the day they will both make nice pictures. Also, the lenses are more important than the camera. You can get the D3100 and 18-200mm for the same price. Something to think about.
D5000-- Good sensor and nice camera. D3100 comments also apply here.
D90--Tough choice. The best DX sensor of its generation and still better than most. If you can't quite stretch to the D7000, this is a very tempting proposition.
D300S-- Irrelevant. The D7000 has a much better sensor, is smaller, lighter, cheaper, and better metering.
Nikon D700-- Would be a good complement to the D7000. Use D7000 when you need the 1.5x crop on the long end and a deeper depth of field due to the smaller chip (about 1 stop deeper) and D700 for when you want to isolate a subject with a shallow depth of field or you want to use the full width of a wide angle such as the 14-24mm. If you don't need the shallower depth of field of a FX sensor and you have the lenses to cover the 1.5x crop then the D7000 should suit just fine. D3s and D3x -- Different leagues altogether. However, the D7000 is 90% of the camera for 1/4 to 1/6th the money.
The 7D is an outstanding camera and while I think the D7000 is a better camera (better sensor, 2 SD card slots, 2016 RGB metering, Price) it is not that much better to warrant switching if you are already invested in lenses.
The Sony SLT-A55 is a great camera but not in the league of the D7000. However it is $350 less and does have so unique properties. It is rumored to have the same sensor as the D7000 but Nikon always does their magic and makes it better (D3x vs A900). The translucent mirror allows for fast shooting but loses 1/3 a stop of light. Still a very nice camera.
Non-DSLR Owner or DSLR owner with just the Kit Lens
When you are buying a DSLR, you are really buying into the lens system. So factor that into you decision making matrix. For that reason, if you have not spent a fortune on lenses yet then I recommend the m4/3 as in my opinion that is the future. The sensor of the top m4/3(GH2) is every bit as good if not better than the current crop of DX sensors and almost as good as the D7000. It is getting to the point, the sensor doesn't matter as much. At this point handling, size and weight start to become more important.
With this in mind I would recommend the Panasonic Lumix DMC-GH2 16.05 MP Live MOS Interchangeable Lens Camera with 3-inch Free-Angle Touch Screen LCD and 14-42mm Hybrid Lens (Black)
to anyone not invested in a lens system. It is smaller, lighter, more capable on the video side and in many ways better on the stills side. It needs a faster flash sync speed, faster shutter speed and the construction is not up to Nikon or Canon standards (In all fairness this cuts down on weight and I have not had a failure with my GH1.) It is probably not quite as good at the high ISO. On the positive side it has a multi-aspect sensor as it is actually an 18mp sensor (16:9, 2:3, and 4:3 will all be 16mp not crops of one aspect ratio) It sells for $899 body only, $999 with the 14-42mm and $1499 with the fantastic 14-140mm 10x zoom. The lack of a mirror flipping up is a benefit in all cases. Also, you can use just about any lens ever made on this camera. Nikon, Leica, Canon, Pentax, C Lenses. You lose auto focus on any auto focus lenses and there is no accurate way to adjust your aperture on G series lenses. While the GH1 sensor was by far the best M4/3 sensor and equaled most DX sensors of its generation, it did not quite stand up to the D90 sensor. I expect the D7000 to have a higher Dynamic Range and be an overall better sensor. However, that difference will not be noticeable to the lay users. What you get is a noticeably smaller and lighter camera that out handles any DSLR on the market and has the best video capabilities. In my opinion the GH2 will be the best all-around camera of its generation. The GH1 is the camera I reach for 90% of the time when I shoot for pleasure. When Panasonic puts out a full Pro line of lenses, I will use it more in the Pro situations. I am sure the GH2 will be my new go to camera.