BTW, this all assumes that all lenses/prisms/baffles etc in the optical system are sized to fit the larger objective size. There have been more than a few pairs of "less expensive" optics made over the years where the limiting factor was not the objective size, but some other part of the optical train, but the objectives were made large as a selling point.
+1 There seem to be a good many different factors at play, some are easily quantifiable and some not. Larger lenses and better coatings help in theory but in practice you generally get what you pay for.
I've owned or at least played with a number of inexpensive binoculars over the years. Some were bad, some seemed great at first but with extended use I always found some major design flaw that detracted from the overall functionality. For example, some glasses offer good color rendition for the price but have problems with stray light or glare. Image sharpness and depth are for the most part subjective but extremely important when it comes to serious use. If the optics is just slightly out of adjustment you might not even notice it at first but prolonged viewing is going to be very uncomfortable.
Previous Topic
Index
