Upgrade the memory of your 2020 iMac up to 128GB
Today’s Deal Zone Items... Handpicked deals...
$128 $63
SAVE $65

$1799 $1699
SAVE $100

$2299 $1799
SAVE $500

$899 $899
SAVE $click

$899 $749
SAVE $150

$1798 $1198
SAVE $600

$3199 $3199
SAVE $click

$80 $33
SAVE $46

$199 $149
SAVE $50

$699 $549
SAVE $150

$400 $300
SAVE $100

$2090 $1690
SAVE $400

$1699 $949
SAVE $750

$1199 $1099
SAVE $100

$1199 $1099
SAVE $100

$999 $949
SAVE $50

$400 $300
SAVE $100

$1699 $949
SAVE $750

OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.


√ No more slow and noisy hard drives!

Eye Relief

2010-01-21 - Send Feedback
Related: binocular, binoculars, video

Eye relief sounds innocuous, but the key word is “relief” as in “a feeling of relaxation following release from distress ”. That’s exactly what it means when using a binocular with enough eye relief versus one with too little for any period of time— an ease of viewing.

I had no idea just how important eye relief is when I started my evaluation of binoculars! Except that I was advised by others in the know that eye relief is the #1 thing to look for, but I did not understand why until I saw for myself, and used a variety of binoculars.

Eye relief is critical— the more the better. Binoculars range from a difficult 12mm up to a relaxing 23mm.

Reader Dan M, who went on his own long search for just the right binocular, states:

A key point, and one of the great values of your review, is that eye relief might not jump out at a potential buyer as a factor if they just grab a pair of binoculars off a store shelf and look through them for a moment. It takes a bit of time and repetition to see just what a huge factor it is.

OWC ROVER PRO wheels for Mac Pro

No tools or hassle… just place your Mac Pro’s factory feet into the Rover Pro’s polished stainless-steel housings and secure with a few hand twists.

When you’re done moving your Mac Pro around, the Rover Pro makes it just as quick and easy to convert back to the factory feet for stationary use.

My own assessment of eye relief

Here are my personal ratings of eye relief, based on using binoculars with 15.5, 18, and 23mm of eye relief. No one can tell you which figure is best for you except, that there is one hard and fast rule: more eye relief is better.

Whatever you do, do not walk into a store, grab a pair of binoculars and take a 10 second look: make yourself use them continuously for at least two minutes. Force yourself to look up and down too (go outside if you can). Pay attention to what you must do to keep a full and clear image, and what you must do with your arms and neck to achieve that. Focus far away, and close too.

15.5mm — adequate, but it takes a concerted effort to keep the eyes centered, the eyes must not deviate in any direction or the view will black out. I couldn’t imagine using such binoculars for very long, but sporadic use for a minute or so will be fine.

18mm — notably easier to work with than 16mm, but the eyes must still remain well centered.


23mm — Lovely. Relaxing to use, and they eyes can even be angled just a bit and still get a good image, which eases the neck position too.

Compact choices

Very few compact models have good eye relief; most are absolutely terrible, with as little as 12.5mm. But see the Nikon EDG page.

Binoculars at B&H Photo:

OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.

Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

Save the tax, we pay you back, instantly!

View all handpicked deals...

Apple 27" iMac with Retina 5K Display (Mid 2020)
$1799 $1699
SAVE $100

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2021 diglloyd Inc, all rights reserved.