All cameras are a compromise, there is a good reason for not having interchangeable lenses, there is less chance of getting dust into the camera, however I would still want the screw thread for filters, and want the ability to take pictures in RAW format.
As to mega pixels, I find in the main I reduce them so to digitally display 2 Mp is ample, to print it depends on size, but unless turning into wall paper, 10 Mp is ample, the higher the mega pixels the more you can crop the picture, the lower the mega pixels the less light you need to take the photo, assuming same size and type of sensor.
So there are three reasonably standard sensors, full frame is same size as a 35 mm film would be, normally we have a smaller sensor to that, varies camera to camera, but cropped sensor normaly around 3/4 size of full frame, this means smaller lenes can be used, but can still use full frame lens so a 400mm full frame lens is a 600 mm approx when used with a cropped sensor.
Because an DSLR needs to move the mirror, lens starts quite a distance from sensor, and making them smaller is not really possible with that mirror, however there is no longer a need for a mirror, as with your phone you can use a digital display, bringing the lens closer to sensor really reduces the lens size, so the micro 4/3rds camera was born, it has interchangeable lens, but far smaller in size. Now we are also getting full frame cameras without the mirror but these are very expensive.
An f 1.6 lens is expensive, with 400 ASA (now called ISO) film you needed all the light you could get, but today you can get cameras with an ISO of over 400,000 the bigger the ISO the lower the Mega Pixel also the larger the f stop the greater the depth of field, so at f8 you can get a massive focal range, so low mega pixel but high ISO is in the main good, it means you need less concentration on the settings, you simply concentrate on your artistic talent.
There are specialist areas, macro, and telephoto need diffrent options to standard, my 18 to 280 mm lens is very slow to focus, it would be no good trying to take pictures on the Mac loop of the fast jets, but it is ample for general photography. Daughters 80 to 300 mm is far faster, but she needs to swap the lens to take pictures inside churches for example, and swapping a lens gives chance of dust.
Ability to take three photos one standard one two stops over and one two stops under in RAW format allows you, (normally with tripod) to capture a high dynamic range, the photo shown is not everyone's cup of tea, but without taking three images in RAW you don't really have the option, so you want the ability to take bracketed photos and in RAW format, Pentax RAW is 12 bit, Nikon RAW is 14 bit, Jpeg is 8 bit, so with Jpeg you can't correct errors, with RAW if you have not set the exposure spot on, to have a better chance of recovering from the error.
As to mega pixels, I find in the main I reduce them so to digitally display 2 Mp is ample, to print it depends on size, but unless turning into wall paper, 10 Mp is ample, the higher the mega pixels the more you can crop the picture, the lower the mega pixels the less light you need to take the photo, assuming same size and type of sensor.
So there are three reasonably standard sensors, full frame is same size as a 35 mm film would be, normally we have a smaller sensor to that, varies camera to camera, but cropped sensor normaly around 3/4 size of full frame, this means smaller lenes can be used, but can still use full frame lens so a 400mm full frame lens is a 600 mm approx when used with a cropped sensor.
Because an DSLR needs to move the mirror, lens starts quite a distance from sensor, and making them smaller is not really possible with that mirror, however there is no longer a need for a mirror, as with your phone you can use a digital display, bringing the lens closer to sensor really reduces the lens size, so the micro 4/3rds camera was born, it has interchangeable lens, but far smaller in size. Now we are also getting full frame cameras without the mirror but these are very expensive.
An f 1.6 lens is expensive, with 400 ASA (now called ISO) film you needed all the light you could get, but today you can get cameras with an ISO of over 400,000 the bigger the ISO the lower the Mega Pixel also the larger the f stop the greater the depth of field, so at f8 you can get a massive focal range, so low mega pixel but high ISO is in the main good, it means you need less concentration on the settings, you simply concentrate on your artistic talent.
There are specialist areas, macro, and telephoto need diffrent options to standard, my 18 to 280 mm lens is very slow to focus, it would be no good trying to take pictures on the Mac loop of the fast jets, but it is ample for general photography. Daughters 80 to 300 mm is far faster, but she needs to swap the lens to take pictures inside churches for example, and swapping a lens gives chance of dust.
Ability to take three photos one standard one two stops over and one two stops under in RAW format allows you, (normally with tripod) to capture a high dynamic range, the photo shown is not everyone's cup of tea, but without taking three images in RAW you don't really have the option, so you want the ability to take bracketed photos and in RAW format, Pentax RAW is 12 bit, Nikon RAW is 14 bit, Jpeg is 8 bit, so with Jpeg you can't correct errors, with RAW if you have not set the exposure spot on, to have a better chance of recovering from the error.