For most part, my DSLR stays at home gathering dust, I use that Canon T3i with two lens comb for trips or special events due to its size. For causal parties and events, I rely on old trusted Canon S400 or A620. I recently got a new Canon S120, I had hoped it can replace my old yet still working, sharp picture taking S400 & A620. But look at the pictures taken with S120, they all look like have a hazy on them, the pictures taken with S400 and A620 are mush sharper, cleaner and crisper. Now I have a buyer’s remorse, wish I have kept A620.
Even at the ISO 100, you can see noise in S120 pictures, whereas it is total noise free with 10 years old S400 and A620. I thought that new 1/1.7” CMOS sensor should have advantage over the 10+ year old 1/1.8” CCD sensors, it does not.
The most important part of any camera is the ability to take sharp, clean pictures, all others are just add-ons. Now I am thinking to let go S120 and get back A620.
Today's compacts are actually much better than those of 10 years ago.
The problem is the legacy of the megapixel war. The IQ of the sensors is better at all iso values but the megapixel count has increased faster than the improvements. The results when you pixel peep at images is that the old ones look sharp and the new ones a bit fuzzy round the edges.
If you resize both sets of images to some compromise megapixel value such as 10MP. You should find that the S120 images look sharper and the A620 images start to look fuzzy.
^^ This.
It`s kind of a way I felt when I took IXUS 220 HS in 2012 (12.1 MP, 1/2.3" CMOS sensor), after owning PowerShot A75 since 2004 (3.2 MP, 1/2.7" CCD sensor) - older camera images just looked better (cleaner, sharper)... when viewed at 100%, and that is part of the issue.
Nowadays cameras (compacts, at least) are hardly made to be viewed at 100%, pixel peeping, but if you print them the same size as you did your old camera images - then new ones should be much better (or at least the same, if lighting is good).
I mean, sure, A75 images look just great - at 2048x1536. Resize your new camera images to same resolution, and they`ll look the same, or better.
The other part of the "issue" why older camera`s seem to have produced better images is because you could only use them in good (or not that bad) lighting, as ISO was pretty limited. I exactly knew when I need to use the flash, and when I shouldn`t even try to take a picture.
Cameras today allow very high ISO values, and while the top ones aren`t really useful for other than having "any" memory being better than none, ISO 800 - 3200 (6400) can still be quite useful, and down-sampled a bit (for example, resized to resolution of that older camera) they look pretty good - where old camera wouldn`t be able to make half a decent picture.
Again, it depends on JPEG algorithm and noise-reduction being applied (you have some in-camera control over it if you shoot JPEG, or total control in post processing if you shoot RAW), where people were complaining on S120 JPEG noise in comparison to S90/S95 (CCD sensor).
I think it comes down to two things - your expectations, and learning to get the most out of the camera. Not each one of them can be used the same, nor one should expect same performance in same circumstances, with the same/similar settings. Cameras today allow for a greater versatility - but that means more chances for user error, as well, producing worse images. With a bit of getting used to the tool you use, it should be much better.
I mainly shoot G7 X now, but I did use S120 for more than a year, and I find it to be a truly great camera - some of my images are
posted here, showing my progress with the camera as well (last set of images
here ,
here and
here).