With apologies to the OP and others I would just like to make a few points clear. The ' light gathering ' ability of a classic optical instrument such as a scope is only a function of its aperture. The magnification determines the exit pupil which illuminates the light recpticles of the human eye and for all intents and purposes and exit pupil of 7 mm is optimal which fully illuminates the recpticles.
A scope of 5X26 mm will have a theoretical exit pupil of 26/5= 5.2 mm, in the case of an 8X56mm scope it will be 56/5=7mm which is optimal. What we sometimes mistakenly refer to as light gathering is actually the transmisiblity of the scope or its light transmition factor. Manufacturers do not publish this figure but I would hazard a guess that in the case of cheap high zoom ratio scopes this is around 70% mark. The more elements the scope has the more light is lost through scatter and in order to minimise light loss highly polished lenses with exotic glass and sophisticated coatings (on all light receiving surfaces and not just the front element ) are required which means caughing up a lot of money .
I am sure that you have heard that in order to judge the performance of a scope it should be tested in very challenging lighting conditions and here mega box scopes score high because they transmit more of the gathered light. Scopes with small apertures also scatter less light and have greater apparent depth of field which gives the impression that they are bright and sharp. This may not be the case in reality but the impression is there. Just wanted to make matters a little more clear.
Regards,
A.G
Simmons WTF are dammed good scopes do not go near the BSA jobs they are China made and crap. Also try and avoid the Bay most scopes a knock offs.
1.5-6x24 Nikko mre , 30mm, cracking scopes if you can find one, though there was one on here recently. I have two, one with a duplex reticle as well as the red multi reticle and one that is just the red multi. I prefer them to a small wtc any day, was disappointed with mine. The Nikko is easy to adjust parallax for airgunshow ranges. Used mine for hunting in all lighting including at night.
Does anybody know what the Nikko 1-4x24 is like?
I've always liked the No 4 Ret...
I'd sell mine boxed & exellent condition for £100.Then buy another whitetail with the money. If some guy dosn't beat me to the next 2 in sales by a couple of minutes, again! LOL. Oh & they're fine with springer recoil btw, I had this one on my 635 mercury .25 cal before the hornet no problem.
My airguns: https://barx.org/airguns/