Hello there! A warning: this is going to be long, so I thank in advance anyone who is going to read it and provide inputs As I anticipated in my presentation message, I'm about to purchase a new camera body and mainly due to budget limits I have narrowed down the choice to 2 camera bodies. I'm a hobbyist photographer and I love natural photography in particular. I am a biologist and I usually take pictures during fieldwork or hiking trips. I rarely go/organize photography-exclusive expeditions (I will in the future but I don't have the time now), this means that I usually have a backpack full of fieldwork/hiking equipment and I stuff the DSLR and lenses in it. I mainly take macro pictures of insects and small fauna when on the go during fieldwork, meaning that I need to take quick pictures in a wide variety of light conditions. I also enjoy taking landscape pictures (especially when going camping) and I occasionally like to do a bit of street photography when visiting new cities. In the future I plan to expand my photographical horizon towards "sit-and-wait" type of photography, especially to take pictures of big mammals and birds (or at least try to eheh). I would also like to try a bit more of long exposure/nighttime photography since some friends gifted me a good Manfrotto tripod some years ago, though I guess I'd need to buy better lenses for that. My current camera body is a 10-years old Canon 450D. I love that camera, it has been perfect for my style of photography since it doesn't weight too much and allowed me to take some good pictures. Although in some situations it has not been ideal: during fieldwork on cloudy days (which can be pretty often during springtime here), I was forced to raise the iso and this camera doesn't handle well the noise above 400 iso, which has been somewhat limiting. Given what I just wrote, one could think that an updated Rebel/three digits body would fulfill my photographic needs, they don't weight too much and have larger sensors and new processors than the 450D, nevertheless I have tried some mid range-pro cameras during the years (5D mark II-III, 60D, 70D) and I fell in love with them to the point that I want one. My budget is limited, so I was considering buying a used 70D and while searching I also came across the 77D which is in my financial range and seems interesting enough. I could probably afford a 80D body, but as I plan to invest in new lenses as well, I refrained from considering it. Doing a bit of homework, I guess the pros-cons of the two cameras are (not counting the video part which I'm not interested to): Canon 70D: -Tropicalization: this would help since I do fieldwork in places where there's a lot of dust on the roads and trails. -Autofocus: seems better than the 77D. I'm currently not using autofocus that much but I will have to use it more for sit-and-wait photography. -Burst: 7 flaps per second, will be useful in the future. -Longer lasting battery -Pentaprism viewfinder: brighter than the pentamirror counterpart and also covers more Canon 77D -Some say it is a rebel in disguise ahah -Weights less, though no tropicalization -Larger sensor and newer processor: this would help in low-light conditions (the cloudy days I mentioned before). So, to me there are no dealbreakers between the two cameras and I was going to choose based only on the offers I get. But there may be aspects I'm not considering which could make lean towards one of the two cameras. On a side note, I was also offered a used 5D mark II and while I love that camera, I see no point in upgrading to full-frame yet but if I'm mistaken, I'm willing to consider it as well. So that's all, thank you for reading and for your inputs!