I choose FF, because that was the camera that provided what I needed.I realise this is an old question and has possibly been asked numerous times before but what size sensor (FF / APS-C) would you choose?
Is it just about sensor size or something else? I always used FF cameras until weight became an issue. So I Changed to a MFT format camera. this made a huge difference with lighter lenses and dual IS. For example = lenses are small and lighter, a 100-300mm mft lens is the same as 200-600mm in a lot smaller package .

Is it just about sensor size or something else? I always used FF cameras until weight became an issue. So I Changed to a MFT format camera. this made a huge difference with lighter lenses and dual IS. For example = lenses are small and lighter, a 100-300mm mft lens is the same as 200-600mm in a lot smaller package .
The extra reach of APS-C can be better, but I don't find it's as much as you think as FF crops better and therefore can crop to give extra reach more than you can with APS-C and retain image quality.@harper . I'm about to move from APS-C to FF. Or at least I think I am. My D5300 is nearly at the end of it's life. I'll miss the extra reach which has always come in handy and there's replacing my lenses to think about, but the time feels right. I might try carrying two cameras around with me when I go on my travels![]()
I disagree, crop sensors often have higher pixel densities, so where noise & dynamic range are not an issue they can crop better.The extra reach of APS-C can be better, but I don't find it's as much as you think as FF crops better and therefore can crop to give extra reach more than you can with APS-C and retain image quality.
Where size & weight are really an issue I use my Pentax Q (much smaller than my MFT kit) but all the sensor sizes are just options in the balancing act between camera size & IQ.Full frame for me, if you want to save size and weight then you're better off with m4/3 imo, APS-C is a little bit in no mans land nowadays.
Primarily, I would choose the sensor size that comes with the camera system that gives me the features I want, for the subjects I am interested in.I realise this is an old question and has possibly been asked numerous times before but what size sensor (FF / APS-C) would you choose?
I don’t believe this is true, higher pixel densities tend to degrade image quality therefore if you crop into an image that is already not as good it’s going to look worse much quicker. A cropped image from a 24mp FF camera is going to look better than a cropped image from an APS-C camera.I disagree, crop sensors often have higher pixel densities, so where noise & dynamic range are not an issue they can crop better.
I never said it was, but the discussion is about FF and APS-CYour FF is definitely not the ultimate here, though digital medium format is extremely expensive & not ideal for fast moving stuff...
Higher pixel densities degrade IQ only by having relatively more noise & lower dynamic range, which is the reason for the two provisos I allowed for.I don’t believe this is true, higher pixel densities tend to degrade image quality therefore if you crop into an image that is already not as good it’s going to look worse much quicker. A cropped image from a 24mp FF camera is going to look better than a cropped image from an APS-C camera.
We’re moving away from what I was actually referring too but I can’t see how a higher pixel density will give a better image (DR and noise excluded)? Obviously I can understand higher resolution/more pixels will give better results with cropping, but not higher pixel density. My iphone is 48mp on a 1/2.9” sensor, that’s going to have a really high pixel density but I think we all know that image quality is still some way off full frame cameras.Higher pixel densities degrade IQ only by having relatively more noise & lower dynamic range, which is the reason for the two provisos I allowed for.
If the same focal length is in use the FF image will need to be cropped considerably more than the APSC one.
If the APSC camera is of similar age to the FF one it will likely have more resolution over the two cameras APSC crops. My FF as well as many others allows an APSC crop to be selected in firmware, but I rarely use this. I'm more likely to use one of my APSC cameras even though they are older tech.
I'm actually looking at the same issue from a different perspective. I shoot weddings and have recently purchased a whole Nikon wedding kit to replace my trusty Fuji's. I'm still using both kits, but one will have to go off to MPB at the end of the season.
Having now shot thousands of images with both, I'm leaning towards selling on the Nikon stuff. I think all it really comes down to is, how much do you like bokeh?
Very much so! I'd think lenses probably play a far bigger part than sensor size.I think lenses can play a part too, and some seem better at giving a sense of depth than others. Also some (really good togs) just don't see it in an image, so it's not something to worry about.
Bokeh is a quality of the lens not the sensor size, depth of field is influenced by the sensor size due to the difference in focal length lens neededI'm actually looking at the same issue from a different perspective. I shoot weddings and have recently purchased a whole Nikon wedding kit to replace my trusty Fuji's. I'm still using both kits, but one will have to go off to MPB at the end of the season.
Having now shot thousands of images with both, I'm leaning towards selling on the Nikon stuff. I think all it really comes down to is, how much do you like bokeh?
I'm actually looking at the same issue from a different perspective. I shoot weddings and have recently purchased a whole Nikon wedding kit to replace my trusty Fuji's. I'm still using both kits, but one will have to go off to MPB at the end of the season.
Having now shot thousands of images with both, I'm leaning towards selling on the Nikon stuff. I think all it really comes down to is, how much do you like bokeh?
Yeah that's good to know, and one of those FF cameras I was looking at was 61mp, I think the others I looked at offered more than my humble 24mp Nikon too.The extra reach of APS-C can be better, but I don't find it's as much as you think as FF crops better and therefore can crop to give extra reach more than you can with APS-C and retain image quality.