Sometimes things, photographically speaking, can best be described as being suboptimal and to get a picture at all is just a question of doing the best you can.
Take this little chap above. To get this picture involved a whole lot of shenanigans:
Firstly he was photographed with a Lumix 100-300mm f4-5.6 II Power OIS zoom at the 300mm end wide open at f5.6 which is not exactly the sharpest performing setting of this lens. As this was taken on MFT format, 300mm is equivalent to 600mm in 35mm terms.
Secondly, to get close enough, the in body digital tele-converter function was used which cropped the imaged by 2x giving the equivalent of a 1200mm lens but at half the camera's 20mp resolution i.e.10mp.
Thirdly, the picture was taken through the glass of the kitchen window degrading image sharpness further.
Fourthly, it was taken in very low light on a very dull day.
Fifthly, it was all hand held, taking advantage of 6.5 stops of sync IS anti-wobble.
To help recover some of the resolution and sharpness of the resulting image, after being processed through Radiant, it was pushed through Topaz Gigapixel and Sharpening, then finished in Apple Photos.
The result is pictorially unimpressive though technically adequate I guess you might say. However, given the challenging conditions in which it was made, it does show the best you might hope to get away with if you had a better and pictorially more interesting subject on the day. Food for thought.