Quick math explanation because people get lost in the topic of light gathering in scopes. You know, you have to get a big 50mm scope because of light gathering, etc?
A typical male over the age of 40 has a maximum pupil dilation of around 6mm. (A young kid with great vision might reach almost 8mm).
So, let’s work the math. A 1-6x24mm optic set at 6x is transmitted 6/24=4mm. But at 4x, you are literally getting all the light through an optic that your over-40 years pupil is going to take in anyway for those low-light situations.
What is the average shooting distance for low-light, dawn/dusk hunting? A leopard blind is typically set at 70 yards. Dangerous game hunting of all types, in aggregate, in the Boddington study found the average shot distance was 38 yards. 38 yards taking in all of those extreme distance shots on Buffalo past 100 yards, you’re still at 38 yard average.
So for DG hunting you’re probably setting your power to 1x and an absolute max of 3x magnification for those 10 yard to 120 yard shots. Your light gathering with a 1-6x24mm set at 3x is passing 8mm of light gathering yet your eyes can only absorb 6mm best-case. Light gathering even on the 1-6x24mm is wasted.
The scenarios that come up in hunting where someone needs a 40mm or 50mm exit objective lens, or a 7x-12x zoom range are very, very rare. The consumer’s false belief they need it is why they are common, not because they are actually solving a problem.