Yeah, another one of these threads…
So, I've always enjoyed photography over the years, taking photos with my old point and shoot digital cameras and, in more recent times, my iPhone. However, in recent times, I've taken an almost obsessive interest in photography, and would love to finally step up to a DSLR.
My main uses are for portraits, some landscapes, a bit of sports related stuff, and family related stuff. So I can't say that I have the highest of professional uses for it. Having said that, whichever DSLR I do buy, I would like to have for the long haul. In other words, while an entry-level DSLR (i.e., Nikon D3400) would probably more than suit my needs in the short-term, I fear that within 1-2 years, I would want more control, and thus outgrow it and wish to purchase something better. So I don't mind spending a bit more on something that will give me the opportunity to grow into it over the course of time.
I'm the atypical hobbyist and Nikon shooter. Mostly street photography, a lot of candids and spur of the moment shots. As such there is no time to fiddle with camera settings beforehand and rely heavily on the camera to get it right. For this kind of shooting you are giving a camera's abilities a pretty good stress test.
Several years ago I've tried several high end point and shoots and Sony's a55 before eventually settling on the Nikon D5100. The point and shoots simply weren't fast enough and I hated Sony's jpeg colors (and the lens selection at the time wasn't that great for an affordable lens). After making a few one time, set and forget tweaks (picture control and white balance setting) on the Nikon, I found myself getting the colors, saturation, and skin tones I wanted on just about every shot no matter what conditions I was shooting in. Even the D5100 focusing system was (and still is) very good. Out of the box it's jpegs are not that great so you do have to tweak, but again the tweaks are one time only and once done everything (especially skin tones) looks great. I still use this camera today.
I did upgrade to the D5200 and 5300 respectively and ended up returning them. Neither seem to produce the same results (sharpness and color) I was getting from the 5100. I got the D5500 and although I kept it and use it, I am not recommending it. Get the D5100 instead (and save yourself some money).
Why? First and foremost although the D5500 is capable of producing some excellent shots, it has an occasional problem with overexposure/blown highlights (depending on shooting conditions) that the D5100 just doesn't have at all. Noted on DP's review: "Something that is easy to get around but worth mentioning (on the D5500 and many other Nikon DSLRs) is its tendency to slightly overexpose." Their solution was to "reduce the exposure by 1/3-stop and then bracket" but all things being equal you shouldn't need to do that in the first place and it's a hassle when reviewing. Ken Rockwell in his review of the 5500 noted the same issue "it errs on the side of overexposure with subjects against dark backgrounds. No big deal, if an image is too light, hold the +/- button and set it to -0.7 or -1.0 and it's perfect". Fine I suppose if you have time to do that but for a spur of the moment shot you don't. Basically it's a non-issue with the 5100 in my experience and apparently with DP's review of the 5100 as well "it is also worth noting that of the thousands of frames that we've shot with the D5100, we haven't seen the same overexposure problem that bothered us with the D7000 in some conditions." Frankly even the iPhone camera doesn't have this issue so it's amazing that a storied marquee camera brand such as Nikon apparently hasn't figured it out.
Second, transferring my settings from the D5100 (picture control, white balance and so on) do not produce the same results on the D5500 so it's more experimentation to get results I like. I eventually figured out some fairly good settings to use, but I was never able to exactly duplicate what I get on the 5100.
Third, although the 5500 supposedly has a more sophisticated auto focus system, my hit/miss ratio is roughly the same as on the 5100, so no big benefit there.
What I do like about the 5500 is the redesigned grip, weight, touch screen, significantly better high ISO noise performance - and it is capable of occasionally producing stunning shots. Just not consistently as noted above. But the overexposure issue with the 5500 is non-trivial, I run into it frequently which is why I can't recommend it to any new DSLR user. All of the above is shooting jpegs by the way. I don't shoot raw. I take too many pics and life is to short. Any modern DSLR has more than enough horsepower to produce great jpegs with minor tweaks to the settings
By the way the 5600 is an absolute joke. Nothing more than a rebadged 5500