im looking over all the tutorials. currents facts so far (will update along the way).
solved stuff moved to bottom
[UNSOLVED SENSOR & MTF]
* mtf looks like the best metric to guage how "quality" a sensor is, and being dependent on aperture, optimal seems to be towards the middle
* it also seems like you want a better digi sensor as it seems to affect sharpness, which in turn affects perceived quality --
* what is the optimal for each of the three spec like in mtf (lens quality) : aperture ratio?
cambridgeincolour.com/tutorials/camera-exposure.htm is incrediably wordy and confusing and doesn't seem to address that
[UNSOLVED TECHNICAL THEORY]
* was there any practical implications i missed from cambridgeincolour.com/tutorials/cameras-vs-human-eye.htm ?
after finishing reading it, i was stumped at what was the point of this apart from explaining differences and giving an understanding of the topics it talks about, so i looked back at the start of the article -- "Why can't I just point my camera at what I'm seeing and record that?"
the simple answer is that you can. the technical answer is that it won't be 100% accurate (nor does it need to be) due to various reasons outlined in the article, though for regular or even stylistic usage, there seems to be a bunch of complexities that are unnecessary.
all answers are meant to solve this problem --
* lower aperture is better -- what others have said -- and "smaller apertures often improve sharpness by minimizing lens aberrations"
Large aperture = small f number
Small aperture = larger f number
"smaller aperture will give you a greater depth of field"
so since small aperture is better, you want a large f number?
"select an aperture based on the desired depth of field"
most people want larger dof, so go with smallest aperture = largest f number
[SOLVED FOCAL LENGTH]
* i've been advised that higher focal length is better. is that correct? --
looks like you want a medium, the standard 35ish
"Normally the camera is sold with an 18-55mm lens, which is called a mid range zoom. A mid range zoom is the most useful lens you’ll ever buy for general photography"
"focal length affects dof.
longer the lens = more restricted the depth of field.
wide angle lens = almost limitless depth of field."
"A longer focal length is much much much better ... if your subject is far away and you need to magnify the image to give the illusion of being closer. Shorter focal length images are much much much better if you have a wide-angle scene that you need to capture."
* optical zoom seems important for quality (Optical zoom allows you to capture more information; digital zoom doesn't.) if you use zoom a lot
"Digital zooms simply enlarge the pixels in your shot which does make your subject look bigger, but it also makes it look more pixelated and your picture ‘noisier’ (like when you go up close to your TV)."
[SOLVED ISO SPEED]
* what is the recommended iso speed number to have set when taking most shots to reduce noise?
looks like you want a medium
or doesn't seem to matter much
[SOLVED SENSOR SIZE]
* sensor size is mainly about taking different shots, and not necessarily higher quality shots. is that correct?
"Sensor size is mostly about cost. Bigger sensors cost more -- smaller sensors cost less. Smaller sensors give you an apparent focal length increase (typically 1.5x or 1.6x), but at the expense of also being longer at the wide end of the focal length range."
sensor size is a ton of marketing and most likely terrible for price : benefit ratio
* not relevant or important for regular usage (feel free to make any corrections)--