65mm Regal 65 M2 45° viewing apochromatic ED spotting scope

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For the birder who is shocked by the four-digit prices of the ED spotting scopes from old-line European manufacturers, prepare to be unshocked. The compact 65mm Celestron Regal M2 apochromatic angled viewing zoom gives you more optical performance than you ever thought your budget would be able to afford. The special ED (Extra-low Dispersion glass) optics and premium XLT optical multicoatings provide a level of color correction and clarity previously unheard of in this price range. Compared to the 65mm European ED spotting scopes, the 65mm Celestron Regal M2 is an exceptional bargain.

The 65mm aperture of this Celestron Regal M2 gathers over 17% more light than a conventional 60mm spotting scope, with 8% higher resolution. Together with the superior apochromatic color correction of the low dispersion ED element in the objective lens, and high light transmission XLT multicoatings, this extra light grasp and resolution will extend your usable observing time and help you make positive species identifications in the low light of early morning or late evening.

We know of no other 65mm ED apochromatic spotting scope that beats the features and price/performance ratio of the digiscoping-ready Celestron 65mm Regal M2. Usable for birding, nature study, and casual astronomy, this 45° angled viewing spotting scope makes compact color free spotting scope optics truly affordable.

Optical features of this scope . . .

Extra-low Dispersion (ED) glass objective lens: The 65mm air-spaced doublet objective lens in the Regal M2 uses one element of ED glass. By bringing virtually all colors of light to a sharp focus at the same focal plane, this premium glass provides an extra measure of exceptionally natural color rendition and virtually no color fringing. The 65mm lens gathers over 17% more light than a 60mm scope, which can often mean the difference between identifying a life bird and missing it entirely in the poor light conditions of dawn or twilight. It uses a high transmission BaK-4 image erecting prism and is fully multicoated with Celestron's proprietary XLT coatings on all air-to-glass surfaces for the highest possible light transmission and contrast.

16-48x multicoated zoom: The eyepiece field of view is a substantial 131’ at 1000 yards at 16x. Even at 48x, it still measures a very wide 68’. The zoom is held in place by a collet mechanism. Simply turn the locking collar to remove the zoom eyepiece from the scope body. This lets you replace it with any standard 1.25” astronomical eyepiece to expand the normal 24mm to 8mm focal length range of the zoom for wider fields or higher powers. A dust cap is provided to seal the scope body when the eyepiece is removed.

Long eye relief: The eye relief is specified at a long and comfortable 20mm at 16x, assuring that there will be virtually no vignetting of the field for eyeglass wearers.

Close focusing: The Regal M2 close focuses down to 16.4’. Through the 65mm Regal M2, looking at a bird at that distance at 16x would effectively be the same as looking with your unaided eye from a distance of only about 12.3”.

Mechanical features of this scope . . .

Dual speed focusing: The Regal M2’s dual focusing knobs are located at the top right front of the prism housing to allow precise focusing with either hand, even while wearing gloves or mittens. They are semi-recessed to resist snagging on clothing or carrying case and are grooved for a sure grip. The rear knob is for faster coarse focusing, with about seven turns of the knob needed to move from one end of the focus range to the other. The front knob is for very fine focusing, with 14 turns of the knob equaling one revolution of the coarse focus knob. Both knobs move very easily, making focusing surprisingly fast.

45° viewing angle: The Regal M2’s 45° viewing angle is generally more comfortable than a straight-through model for watching treetop activity or for extended observing from a blind or back porch. It is also more convenient for observing couples of varying heights who must share a single scope, as there is little need to constantly raise and lower the tripod to a comfortable observing height for each observer, thanks to the angled viewing position.

Twist-up rubber eyecup: The zoom’s rubber eyecup twists up to improve the contrast when observing without eyeglasses, then twists back down to retract the eyecup onto the eyepiece body for use with eyeglasses or sunglasses. The rubber eyecup can also be unthreaded from the eyepiece. This allows you to attach a DSLR camera body directly to the eyepiece, using a supplied adapter ring and an optional T-ring, for high magnification digiscoping through the zoom eyepiece.

Waterproof armored body: The lightweight magnesium alloy scope body is lightly rubber armored for durability and to help shock-proof the optics. The armor also provides a sure grip in wet weather. The slide-out lens shade improves visual and photographic contrast. It is also rubber armored and has a sighting line built into it to help quickly center the scope on possible targets. The scope is O-ring sealed and nitrogen-purged to be waterproof and internally fogproof in all weather conditions. The body can be rotated from side to side on its mount to switch from a landscape to a portrait orientation during photography. The compact body measures only 13.1” long without eyepiece, 16” with eyepiece.

Tripod mounting foot: The Celestron 65mm Regal M2 has a mounting foot that fits on any photo tripod having a standard 1/4”-20 thread mounting bolt.

Supplied accessories: A water-shedding soft case is standard equipment. The case has zippered flaps that allow you to use the scope on a tripod while still in the case. The case has an adjustable length shoulder strap for carrying. The eyepiece is protected by a thread-on metal cover. A snap-in camera-type lens cover protects the objective lens. Dust caps are provided for the eyepiece collet in the body of the scope and for the 1.25” barrel of the zoom eyepiece. An adapter ring with photographic T-threads allows you to connect a T-ring and DSLR to the zoom eyepiece.

Lifetime warranty: The Celestron 65mm Regal M2 spotting scope has a lifetime warranty against defects in materials or workmanship.
Magnification is the ability of a telescope to make a small, distant object large enough to examine in detail. If you look at the Moon (250,000 miles away) with a 125 power (125x) telescope, it's essentially the same as looking at it with your bare eyes from 2000 miles away (250,000 ÷ 125 = 2000). The same telescope used terrestrially will make an object one mile away appear to be only 42 feet away (5280 feet ÷ 125 = 42).
The magnification of a telescope is determined by dividing the focal length of the telescope (usually in millimeters) by the focal length of the eyepiece used (again, usually in millimeters; but in all cases by the same unit of measurement used for the telescope focal length). For example, a 2000mm focal length telescope and a 10mm focal length eyepiece will give you a magnification of 200 power (2000 ÷ 10 = 200). The same 2000mm telescope with a 20mm eyepiece will give you 100x (2000 ÷ 20 = 100).
Field of view 1000 yards:
131' @ 16x; 68' @ 48x
Near Focus:
Eye Relief:
Eye relief is the distance from the last surface of the eye lens of an eyepiece to the plane behind the eyepiece where all the light rays of the exit pupil come to a focus and the circular image is formed, sometimes called the “Ramsden Disk.” This is where your eye should be positioned to see the full field of view of the eyepiece. If you must wear glasses because of astigmatism, you’ll usually need at least 15mm of eye relief or longer if you want to see the full field of view with your glasses on.

A note on our eye relief figures: Quite often, our eye relief figures will differ from those of the manufacturer. This is because we measure the “usable” eye relief, while the manufacturers specify their usually-longer (but technically correct) “designed” eye relief.

The eye lens of the eyepiece is normally recessed below the rubber eyeguard or rubber rim of the eyepiece to keep the lens from being scratched during use. An eyepiece might have a “designed” eye relief of 15mm (and the eye relief will truly measure 15mm from the eye lens to where the image forms). However, if the eye lens is recessed 3mm below the eye guard, the Ramsden Disk forms only 12mm above the eyepiece body (the 15mm “designed” eye relief, less the 3mm of eye relief made unusable by having the eye lens recessed into the body of the eyepiece). This “usable” eye relief of 12mm (measured from the rolled-down eyeguard – the closest point you can get your eye to the eye lens – to where the image forms) is the eye relief figure we would measure and list in this website.

Why is it important to list the “usable” eye relief? For those people who don’t wear eyeglasses while observing, a few mm difference between the eye relief they expect from the manufacturer’s literature and the shorter eye relief they actually get in real life doesn’t mean a lot. They can simply move a little closer to the eyepiece to see the full field, and never realize that the eye relief is a little shorter than they expected. However, some people must wear eyeglasses while observing, because of severe astigmatism. These observers can’t move closer to the eyepiece if the eye relief is shorter than expected because their glasses get in the way. For these people, the real life “usable” eye relief is more important than the technically correct but sometimes not fully usable “designed” eye relief. We measure and list the actual usable eye relief so that people in the real world can pick the eyepieces that will work best for them.

20mm @ 16x
Exit Pupil:
The circular image or beam of light formed by the eyepiece of a telescope. To take full advantage of a scope's light-gathering capacity, the diameter of an eyepiece exit pupil should be no larger than the 7mm diameter of your eye's dark-adapted pupil, so that all of the light collected by the telescope enters your eye. (The eyepiece exit pupil diameter is found by dividing the eyepiece focal length by the telescope focal ratio.) Your eye's ability to dilate declines with increasing age (to a dark-adapted pupil of about 5mm by age 50 or so). For those in this age group, eyepieces with exit pupils larger than their eyes can dilate to simply waste their telescope's light-gathering capacity, as some of the scope's light will fall on their iris instead of entering their eye.
4.06mm @ 16x
Twilight Factor:
A number used to compare the effectiveness of binoculars or spotting scopes used in low light. The twilight factor is found by multiplying the size of the objective lens (in mm) by the magnification and then finding the square root of that result. The larger the twilight factor, the more detail you can see in low light. A twilight factor of 17 or better if usually required for reasonable low light use.
32.25 @ 16x
This is the diameter of the light-gathering main mirror or objective lens of a telescope. In general, the larger the aperture, the better the resolution and the fainter the objects you can see.
13.1" (body only)
A binocular or spotting scope whose body is clad in rubber or polyurethane armor is said to be armored. Armor can be applied for looks, a better grip, noise-proofing, etc. An armored body does not guarantee that a binocular or spotting scope is waterproof, although most waterproof optics are armored.
The weight of this product.
46.8 oz. (body only)
Limited Lifetime
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  • Lens cap
  • 16-48x zoom eyepiece
  • Soft scope carry case with shoulder strap
  • Dust covers
  • Camera adapter ring
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65mm Regal 65 M2 45° viewing apochromatic ED spotting scope

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65mm Regal 65 M2 45° viewing apochromatic ED spotting scope
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Our Product #: CR65M2
Manufacturer Product #: 52304
Price: $499.95  FREE ground shipping - Click for more info
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MSRP: $699.95

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Compared to the four-digit prices of 65mm ED spotting scopes from Europe, the moderately-priced 65mm Celestron Regal M2 apochromatic ED zoom is an absolute bargain . . .

. . . our 38th year