Eye strain as a function of magnification and objective diameter?

[WRO]

I needn't read your mind when the below blanket statement was posted by you....and I thought the thread was about discussing facts, not your "philosophies" on optics.



I won't banter with you every time I post, it's boring and worthless to be honest.

So what you're saying is you don't know causes eyestrain and headaches.

Glad you were able to clarify that.

Sent from my SM-G920V using Tapatalk

 

[Bwana]

So what you're saying is you don't know causes eyestrain and headaches.

Glad you were able to clarify that.

Sent from my SM-G920V using Tapatalk

.

 

[Biggs300]

I have 3 decent quality binoculars; one in 10x50, 10x25 and finally 8x21 (very compact). If I'm glassing for several hours for elk. the 10x50 get the nod, no question, they are just easier on the eyes. But, for most hunting situations the 10x25's are my choice. The 10x50's are absolutely less taxing as far a eye strain but, for occasional, quick glassing in more confined areas I would pick the 10x25's. I seldom use the 8x21's as they are boarding on useless in my opinion.

 

[Thinkingman]

I have 3 decent quality binoculars; one in 10x50, 10x25 and finally 8x21 (very compact). If I'm glassing for several hours for elk. the 10x50 get the nod, no question, they are just easier on the eyes. But, for most hunting situations the 10x25's are my choice. The 10x50's are absolutely less taxing as far a eye strain but, for occasional, quick glassing in more confined areas I would pick the 10x25's. I seldom use the 8x21's as they are boarding on useless in my opinion.

I respectfully disagree with the comment re 10x25 vs 8x21.
If I'm glassing at distance, the 10x50 makes total sense.
If I'm setup or stalking, 8x for wider FOV and brighter if I'm in dark timber bow hunting.
10x25 would be useless.

 

[GKPrice]

Vs a spotting scope, any pair of binoculars a is going to be very comfortable to glass behind for hours. I always notice eye strain when using a spotter for long periods, but I can honestly say I've never noticed it with my 15x56 Euro HD. I think the Euro HD and Zeiss Conquest are the baseline where they start to get good. Upgrading to Swarovski or Leica, the primary difference in my opinion is better edge to edge clarity.

Sent from my SM-G900V using Tapatalk

same with me ^^^^^^^^

 

[GKPrice]

I respectfully disagree with the comment re 10x25 vs 8x21.
If I'm glassing at distance, the 10x50 makes total sense.
If I'm setup or stalking, 8x for wider FOV and brighter if I'm in dark timber bow hunting.
10x25 would be useless.

I've used 10x25's (or close) from Zeiss, Swarovski and Leupold 9's for timber hunting a bunch, all outstanding in that use

 

[Bwana]

I don't have a horse in the race:

But 10x25's are very light for their ability, but all brands severely lack in eye pupil/relief for glasses wearers...they may be fine for some, but fast and easy viewing they aren't. Even Swaro El's in 10x25 have the same issue, for the guy traveling light or has 20/20 vision they're great I'm sure.

 

[GKPrice]

I don't have a horse in the race:

But 10x25's are very light for their ability, but all brands severely lack in eye pupil/relief for glasses wearers...they may be fine for some, but fast and easy viewing they aren't. Even Swaro El's in 10x25 have the same issue, for the guy traveling light or has 20/20 vision they're great I'm sure.

eyeglasses and optics never were a usable combo for me - I had RK way back when and cured "THAT" problem

 

[Bwana]

eyeglasses and optics never were a usable combo for me - I had RK way back when and cured "THAT" problem

My vision is very good, but eliminating glasses surgically isn't an option for me...and contact lenses are an insane experience for me in the outdoors.