The catch
Celestron Nature DX ED 8x42
It is 2.7 oz heavier than M5
Side by side
Celestron Nature DX ED 8x42 vs Nikon Monarch M5 8x42 Compared: A seven-foot feeder is within Celestron’s reach, while Nikon saves 2.7 oz and adds eye relief
Quick verdict
A 7 ft feeder, a wider scene or a shared user at 73–74 mm eye spacing points to the Nature DX ED 8x42. The Monarch M5 8x42 is the pick when its longer 19.5 mm eye relief and 2.7 oz weight saving count for more than those close-garden advantages.
Before you buy
Why, and what it costs you
A nearby feeder can decide between two ED pairs that look alike
A 7 ft feeder is within the Nature DX ED’s reach but not the M5’s. Both have ED glass, so this hard distance limit is a clearer purchasing fact than assuming that one glass label is superior.
Where this comes from
The close-focus distances are 6.5 and 8.2 ft, and the stated 7 ft feeder falls between them.
The catch
Nikon Monarch M5 8x42
Can’t handle a feeder distance of 7 ft
Celestron Nature DX ED 8x42
- Why pick it
- Your feeder is about 7 ft off
- Someone needs eye spacing of 73 or 74 mm
- The catch
- It is 2.7 oz heavier than M5
Nikon Monarch M5 8x42
- Why pick it
- You keep your glasses on and want the candidate with longer eye relief
- Lower weight is the goal and even your closest subjects are farther off
- The catch
- Can’t handle a feeder distance of 7 ft
We may earn a commission from qualifying Amazon purchases. How we make money
What this page compares
Celestron Nature DX ED vs Nikon Monarch M5 8x42. Celestron is the one for a 7 ft feeder or a 74 mm viewer. The M5 answers with lower weight and longer eye relief worth trying.
Two ED-glass 8x42 models that differ in practice on near focus, shared eye spacing and glasses-on fit.
Which one fits
Pick the situations that sound like you
The window is 7 ft from a feeder
Nature DX ED alone meets the stated distance.
- Celestron Nature DX ED 8x42
- Better fit
- Nikon Monarch M5 8x42
- Not suitable
A shared user’s measurement is 74 mm
The M5 range ends at 72 mm.
- Celestron Nature DX ED 8x42
- Better fit
- Nikon Monarch M5 8x42
- Not suitable
Glasses stay on while viewing the garden from afar
Give the M5 a try for its longer eye-relief allowance.
- Celestron Nature DX ED 8x42
- Good
- Nikon Monarch M5 8x42
- Better fit
Long walks count for more than close viewing
M5 sheds 2.7 oz.
- Celestron Nature DX ED 8x42
- Good
- Nikon Monarch M5 8x42
- Better fit
In practice
Differences you will notice
A nearby feeder can decide between two ED pairs that look alike
A 7 ft feeder is within the Nature DX ED’s reach but not the M5’s. Both have ED glass, so this hard distance limit is a clearer purchasing fact than assuming that one glass label is superior.
How we worked this out
The close-focus distances are 6.5 and 8.2 ft, and the stated 7 ft feeder falls between them.
The wider shared fit costs carrying weight
Eye spacing goes up to 74 mm on Celestron, while Nikon stops at 72 mm. A user with wide spacing may need the heavier model even if a lighter kit was the original goal.
How we worked this out
The ranges are 56–74 and 56–72 mm, and the weights are 24.9 and 22.2 oz.
Move the feeder away and glasses can flip the preference
When the nearest subject is beyond 8.2 ft and everyone fits both, M5 has more eye relief and lower weight. Celestron keeps the wider field, so the personal trial still matters.
How we worked this out
The eye relief figures are 17.8 and 19.5 mm. With fields of 393 and 335 ft, Celestron is 17.3% wider.
Option A
Celestron, Nature DX ED 8x42
Nature DX ED 8x42
Shortlist it for practical reasons, the 6.5 ft focus limit and the 56–74 mm eye-spacing range. ED glass by itself does not show a measured optical-quality win over another model.
- Best for
- Your feeder is about 7 ft off
Facts we checked
- Closest focus of 6.5 ft
- Eye-spacing range: 56–74 mm
- Eye relief of 17.8 mm
- Weight: 24.9 oz
Option B
Nikon, Monarch M5 8x42
Monarch M5 8x42
If you wear glasses while you look, the 19.5 mm eye relief is worth checking. A feeder right by the window is out, though, because close focus is 8.2 ft.
- Best for
- You keep your glasses on and want the candidate with longer eye relief
Facts we checked
- Closest focus of 8.2 ft
- Eye-spacing range: 56–72 mm
- Eye relief of 19.5 mm
- Weight: 22.2 oz
Spec by spec
Where they really differ
| Spec | Celestron Nature DX ED 8x42 | Nikon Monarch M5 8x42 | In practice |
|---|---|---|---|
| Closest focus | 6.5 ft | 8.2 ft | The example 7 ft feeder is within Celestron’s reach. |
| Eye-spacing range | 56–74 mm | 56–72 mm | Fit at the upper end can decide a shared purchase. |
| Eye relief | 17.8 mm | 19.5 mm | On paper, Nikon gives 1.7 mm extra. |
| Weight | 24.9 oz | 22.2 oz | Nikon is 2.7 oz lighter. |
| Scene width | 393 ft at 1,000 yd | 335 ft at 1,000 yd | At the same 8x, Celestron’s view is 17.3% wider. |
Trade-offs
What each pick costs you
With Celestron Nature DX ED 8x42
- Eye relief is shorter at 17.8 mm
With Nikon Monarch M5 8x42
- The field is narrower and the upper eye-spacing limit is 72 mm
Change of plan
When the answer changes
Your needs include the 7 ft feeder or a 74 mm user
Go with Celestron Nature DX ED 8x42. Those hard constraints are met by the Celestron.
Everyone fits, and the M5’s longer eye relief makes it easier with your glasses
Go with Nikon Monarch M5 8x42. Personal fit and lower carrying weight can turn the choice around.
A shared user’s measurement is 55 mm
Neither model fits. Each starts at 56 mm.
Decision guide
How to decide
Take the Nature DX ED 8x42 if you have a 7 ft feeder, want a wider scene or must fit a shared user at 73–74 mm eye spacing. The Monarch M5 8x42 wins when the longer 19.5 mm eye relief and the 2.7 oz weight saving matter more than those close-garden advantages.
A nearby feeder can decide between two ED pairs that look alike
A 7 ft feeder is within reach of the Nature DX ED and out of reach for the M5. Both have ED glass, so this hard distance limit tells you more for a purchase than assuming one glass label is better. Close focus is 6.5 and 8.2 ft, and the stated 7 ft feeder falls between those limits.
The wider shared fit costs carrying weight
Eye spacing goes up to 74 mm on the Celestron and stops at 72 mm on the Nikon. A wide-spacing user may need the heavier model, even if a lighter kit was the first goal. The ranges are 56–74 and 56–72 mm, and the weights are 24.9 and 22.2 oz.
Move the feeder away and glasses can flip the preference
When the nearest subject is beyond 8.2 ft and everyone fits both, the M5 gives more eye relief and less weight. The Celestron keeps the wider field, so a personal trial still matters. Eye relief is 17.8 and 19.5 mm, and the fields are 393 and 335 ft, which makes the Celestron 17.3% wider.
What this page can’t tell you
- Comparisons here draw on manufacturer specifications and can be reproduced, and none involve hands-on tests of sharpness, steadiness or brightness.
- Exit pupil comes from objective diameter divided by magnification, so it cannot show measured light transmission or a low-light winner.
- Glasses fit and packed-case clearance are personal, and published eye relief and body dimensions cannot guarantee either one.
By the numbers
What the data shows
What we found across the binoculars we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Celestron Nature DX ED 8x42 |
|
| |
| Nikon Monarch M5 8x42 |
|
|
Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Celestron Nature DX ED 8x42
Your feeder is about 7 ft off
See price & reviews on AmazonNikon Monarch M5 8x42
You keep your glasses on and want the candidate with longer eye relief
See price & reviews on AmazonEach link opens in a new tab.
We may earn a commission from qualifying Amazon purchases. How we make money