DreDaze wrote in post #17979807
but what do the numbers mean in the real world...like at what point does a difference become noticeable...i doubt someone would notice a 1 pt difference...so is it 5, 10, 15, 20...numbers are all well and good for scientific purposes, but i feel like they can lose a lot when translated to actual photographs
I am on a break right now, and don't have a bunch of time. However, I will try to explain to the best of my understanding.
A score of 1000 = optimal by today's standards (think Grade A in school).
Therefore, lenses/cameras with a Score of 1000 = outstanding in their capacity.
Lenses/cameras scoring over 1000 = SUPER lenses/cameras, just exemplary (think A++ in school )
Moving down, lenses/cameras scoring in the 800-900 range are "above average," and certainly capable of pleasing images before "knowledgeable eyes." (Think B/B+ to A- in grading.)
However, lenses/cameras that start dipping in the 700 range are simply >meh< before knowledgeable eyes.
(Rookies may not see the faults, but anyone with experience will simply avert their eyes and not really care )
As far as disparity goes, a difference of 40 - 80 is not really noticeable, so if your lens is an 840, while another is a 920, it isn't going to matter in the real world.
However, if you're shooting a 750/550 resolution/bokeh zoom, and comparing that to a 1000/1050-rated prime, the difference will be obvious, literally night and day.
A good guideline would be this:
Disparities of 50-100 are negligible.
Disparities from 100-200 are definitely noticeable, but possibly acceptable.
Disparities of 200+ are light years of qualitative difference, and UNacceptable to anyone who's experienced the difference.
Hope this helps, and (yes) ignorance of the difference can be bliss ... because once you know the difference, it gets expensive