I used to own D70 and I still have D2H, however after getting D700 over 4 years ago I sold the D70, D2H is just taking space on my shelf.
Last year I got D800, so D700 is used for family stuff and D800 for the things that I post here.
I would not worry about the MPx, because I have sold things that were taken with D70 and D2H (only 4Mpx) on here before.
Anyway, first you have to ask yourself what is that you need that your D50 does not have. All the newer cameras will have more Mpx and have cleaner images at high ISO.
Obviously the D7100 will be the best, followed by the D7000. I think I would go with the D7000 to save some money, I don't remember what were the differences between the 2. I think it was mostly the video feature that were improved.
The D7100 and D7000 are not necessarily better cameras. New cars aren't necessarily better than old cars. I just bought my third edition of the photomanipulation program I use - I'll be polite - the first version I bought X2 is a much better and less complicated (and yes, some of it is because I'm used to it) and does things the new program will not do. What it does do is a bit different - but the real problem - the older version does not recognize the new version when I save it in layers - so I cannot switch back and forth.
@Roy, I do agree that newer does not always mean "better", it also depends what do you mean by "better". Some people might not like or need the large RAW files that the D800 produces for every day use. Like me. This is why I use the D700 for taking pictures of my kids and D700 is a "better" camera for that type of application, at least for me.
If you shoot a lot of sport or high speed action you do need a camera with a high frames per second count and excellent focusing speed and accuracy. In that case D800 is not the best tool for the job, however the D7100 in the DX should be much "better".
D40, then D90, now a D7000. All were good, but I am very happy with the D7000. I like having most of the controls available without diving deep into the menu. The only thing I wish it had was an articulating screen for those close to the ground shots. My old knees would truly appreciate that feature.
I have had the D80 and D7000 both amazing cameras. But switched to the Nikon Coolpix P7700 for the swivel screen and great
jpeg engine. What ever you do don't sell the D50 keep it and just do an upgrade as it takes great images right out of the camera and is a classic.
Here are some photos from these great cameras.
Went from a D200 to the D7000 and both were awesome and dependable cameras.
Just recently got the D7100 which has several improvements over the D7000. Besides the additional megapixels ( 24 over 16 to allow for bigger prints here at FAA ), it also has 51 focus points instead of only 39 and allows up to 5 bracketed exposures instead of only 3 on the D7000. Other improvements and a price of only $ 1200 for the body, made it a good choice for me.
It uses the same battery and memory cards as the D7000, which I am keeping as a backup camera with a different lens attached.
Miss my D-40! Now using 5100 and as I type the commercial for 3200 started playing on t.v. hehehe. I really hardly ever use it for video but there was no option for camera only. Needed more focusing options and more pixels. I think the new ones have wi-fi which would be awesome if you could find a hotspot and clear your sd card by uploading to your vault. Would make for a great instant backup also.
I have a D70S and I'm ready to upgrade but on a budget. Looking at used or refurbed D300 or D300S... any advice or experience on buying used or refurbished? Refurb D300S, $1200, used D300S in e+ condition, $849..... kind of a big difference for the guarantee that Nikon USA will service it. I actually bought a D300, held it lovingly in my hands, gazed thru the viewfinder, and felt the devastation when it would not read a CF card. Couldn't believe they didn't test it before selling it as e+. So I'm a little jumpy now. Anybody else have experience with used/refurbished to share?
The D50 is already about 7 years old and I guess any of the new models is going to be an improvement. I started out with a D80 and after that moved on to a D7000. Never quite liked the metering on the D7000 though, very unpredictable. Traded in my digital Nikon gear recently for a Nikon F6 and very happy.
The 7100 is probably king of the DX hill at the moment. What you should upgrade to however depends on a number of factors. How often do you shoot and how serious are you? Are you heavily invested in DX glass? Since you seem to use your equipment for long periods of time, you might want to look at the Nikon D600. Full frame and more expensive than the 7100 for sure, but spread out over several years the price difference might be worth it to you.
Started with a D60, but recently upgraded to a D5100 and love it. Better resolution, bracketing, better ISO, articulating screen, video... I had initially upgraded to a D3200 but it felt very "cheap" to me (the spring mechanism in the SD card slot broke within a day and it kept giving me memory card errors). Glad it did, because I was laser-focused on the D3200 but the D5100 turned out to be a much better choice for the stuff I do.
I have all DX lenses currently not alot of money, the most expensive being the older 80-400VR, I am planning on getting the newer version of this one which I believe can be used on DX or FX bodies. For now the body is the main item. There appears to be alot of complaints about oil spots from the D600, not sure if this is just people looking for problems as we all get junk on our sensors from time to time or if it was an issue in early production which sometimes pops up.
I think with the D800 there was some focusing issue and I remember reading about the oil spots with the D600 but not sure if they are an issue right now. It happens but any issues should be resolved by now.
I believe its better to use FF lenses on DX bodies than the other way around, but if I remember correctly the D600 has some sort of crop mode that allows for DX to be used. The FF models of Nikon are definitely better built so if youre planning to use your body for 6 or more years that is also something that you may want to factor in.