The catch
Nikon Monarch M5 8x42
Same 8x, but the field narrows to 335 ft
Side by side
Nikon Monarch M5 8x42 vs Nikon Monarch M7 8x42 Compared: M7’s view for finding birds is 29.9% wider, while M5 keeps more eye relief
Quick verdict
If holding onto a moving bird matters most, go with the Monarch M7 8x42, whose field is 29.9% wider. On paper the M5 8x42 is the better candidate with glasses on, offering 19.5 mm of eye relief against 17.1 mm, and it also weighs a little less.
Before you buy
Why, and what it costs you
What the upgrade buys is room to track a bird
The M7 shows more of the scene around the subject at the same 8x magnification, so a moving bird may reach the edge of the view less often.
Where this comes from
At 1,000 yd the fields are 435 and 335 ft. That’s an increase of 100/335, or 29.9%. It describes field geometry and isn’t a measured tracking-success rate.
The catch
Nikon Monarch M7 8x42
Eye relief is 2.4 mm shorter than on the M5
Nikon Monarch M5 8x42
- Why pick it
- Longer eye relief is what you want to test with your glasses
- Carrying 1.4 oz less is worth a narrower field to you
- The catch
- Same 8x, but the field narrows to 335 ft
Nikon Monarch M7 8x42
- Why pick it
- You want more of the surrounding scene as birds move through branches
- You want your personal setting held by a locking diopter
- The catch
- Eye relief is 2.4 mm shorter than on the M5
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What this page compares
Nikon Monarch M5 vs M7 in 8x42. The M7 shows 29.9% more field width for moving birds. The M5 counters with longer eye relief and lower weight, so decide which trade fits you.
Moving up to the M7 changes field width and how securely the adjustment holds, while the less expensive-tier M5 keeps more published eye relief.
Which one fits
Pick the situations that sound like you
Birds in motion on a daytime walk
What helps here is the M7’s wider field.
- Nikon Monarch M5 8x42
- Good
- Nikon Monarch M7 8x42
- Better fit
Glasses remain on during every observation
Begin by trying the M5’s longer eye relief with your frames.
- Nikon Monarch M5 8x42
- Better fit
- Nikon Monarch M7 8x42
- Depends
A feeder is 7 ft away from the viewing position
Each needs a minimum of 8.2 ft.
- Nikon Monarch M5 8x42
- Not suitable
- Nikon Monarch M7 8x42
- Not suitable
You want your personal adjustment to stay as set between outings
A locking diopter is explicitly included on the M7.
- Nikon Monarch M5 8x42
- Depends
- Nikon Monarch M7 8x42
- Better fit
In practice
Differences you will notice
What the upgrade buys is room to track a bird
The M7 shows more of the scene around the subject at the same 8x magnification, so a moving bird may reach the edge of the view less often.
How we worked this out
At 1,000 yd the fields are 435 and 335 ft. That’s an increase of 100/335, or 29.9%. It describes field geometry and isn’t a measured tracking-success rate.
The higher-tier name does not settle glasses fit
It’s the M5 that has the longer published eye relief. If your glasses have to stay on, try both before you pay for the wider view.
How we worked this out
Eye relief is 19.5 mm on the M5 and 17.1 mm on the M7. Neither the eyecup shape nor the viewer’s frames has been measured.
A 7 ft feeder stays out of reach on both
Close focus stops at 8.2 ft on both. Paying more for the M7 won’t bring that particular feeder within the specified range.
How we worked this out
The pages for both exact 8x42 models list a minimum focus distance of 8.2 ft. A subject at 7 ft is nearer than either limit.
Option A
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
- Longer eye relief is what you want to test with your glasses
Facts we checked
- Scene width: 335 ft at 1,000 yd
- Eye relief of 19.5 mm
- Carrying weight: 22.2 oz
- Closest focus of 8.2 ft
Option B
Nikon, Monarch M7 8x42
Monarch M7 8x42
When birds move across branches, the 435 ft field is the reason to look at this one. A locking diopter keeps your adjustment in place. The 8.2 ft focus limit can still be a problem at a close feeder.
- Best for
- You want more of the surrounding scene as birds move through branches
Facts we checked
- Scene width: 435 ft at 1,000 yd
- Eye relief of 17.1 mm
- Carrying weight: 23.6 oz
- Closest focus of 8.2 ft
Spec by spec
Where they really differ
| Spec | Nikon Monarch M5 8x42 | Nikon Monarch M7 8x42 | In practice |
|---|---|---|---|
| Scene width | 335 ft at 1,000 yd | 435 ft at 1,000 yd | Since both are 8x, what you gain is more of the surrounding scene and not more magnification. |
| Eye relief | 19.5 mm | 17.1 mm | The longer figure belongs to the M5. |
| Carrying weight | 22.2 oz | 23.6 oz | Before cases and straps are counted, the M5 saves 1.4 oz. |
| Closest focus | 8.2 ft | 8.2 ft | The upgrade can’t be justified by a limit that is identical. |
Trade-offs
What each pick costs you
With Nikon Monarch M5 8x42
- Close window feeders are still ruled out by the 8.2 ft minimum
With Nikon Monarch M7 8x42
- Listed carrying weight is 1.4 oz higher
Change of plan
When the answer changes
Moving birds often slip out at the edge of your view
Go with Nikon Monarch M7 8x42. More of the surrounding scene comes with the 435 ft field.
The M5 suits your glasses, but the M7 cuts off the view
Go with Nikon Monarch M5 8x42. Longer eye relief counts for more than the upgrade in field width.
You have to watch wildlife from 7 ft away
Neither model fits. More distance is needed on both.
Decision guide
How to decide
The Monarch M7 8x42 is the one for following a moving bird, with a field 29.9% wider. The M5 8x42 comes out ahead as the glasses-on candidate on paper, since its eye relief is 19.5 mm against 17.1 mm, and it is slightly lighter too.
What the upgrade buys is room to track a bird
Magnification is 8x on both, but the M7 shows more of the scene around the subject, so a moving bird may hit the edge of the view less often. The fields are 435 and 335 ft at 1,000 yd, and the gain is 100/335, or 29.9%. That comes from field geometry and is not a measured tracking-success rate.
The higher-tier name does not settle glasses fit
It is the M5 that has the longer published eye relief, since M5 measures 19.5 mm against 17.1 mm for the M7. If your glasses have to stay on, try both before you pay for the wider view. Eyecup shape and the viewer's frames have not been measured.
A 7 ft feeder stays out of reach on both
Close focus ends at 8.2 ft on both, so spending more on the M7 will not put that feeder inside the specified range. The exact 8x42 pages for each list an 8.2 ft minimum focus distance, and a subject 7 ft away is nearer than either limit.
What this page can’t tell you
- Nothing here comes from hands-on sharpness, steadiness or brightness tests. The comparisons rest on manufacturer specifications and can be reproduced.
- The exit pupil is a calculation, objective diameter divided by magnification. It does not prove measured light transmission or a low-light winner.
- A published eye-relief figure or body size cannot promise that the pair fits your glasses or clears space in a packed case.
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 |
|---|---|---|---|
| Nikon Monarch M5 8x42 |
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| |
| Nikon Monarch M7 8x42 |
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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.
Nikon Monarch M5 8x42
Longer eye relief is what you want to test with your glasses
See price & reviews on AmazonNikon Monarch M7 8x42
You want more of the surrounding scene as birds move through branches
See price & reviews on AmazonEach link opens in a new tab.
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