Celestron Edge HD vs Meade ACF

For those who are interested in astronomy, telescopes will be one of the must haves because this tool allows you to take a peek at what’s outside of our naked eyes capabilities. If you are looking for best experience, the unit must be reliable as well such as the Celestron Edge HD Vs Meade ACF. These favorite options are very much capable but pricey as well thus, let’s consider what they can offer first before making a decision so then we can shop wiser.

In this article, we are going to give you information about:

  • What are Telescope Types
  • What are Celestron Edge HD Vs Meade ACF
  • What Celestron Edge HD and Meade ACF Look Like
  • How are the Specification of Celestron Edge HD and Meade ACF
  • How are the Mounting of Celestron Edge HD and Meade ACF
  • How are the Performance of Celestron Edge HD and Meade ACF
  • Newtonian Celestron Edge HD Vs Meade ACF

Telescope Types

Astronomy may not be a very popular hobby nowadays amidst the rapid advance of technology which is mostly planted in the next generation of smart devices. However, there are still so many who are interested in the natural beauty that we can’t reach from earth. Looking at celestial objects in the night sky with naked eyes is amazing but looking at them through a telescope is magnificent. The key is, we have to find a reliable telescope first and then find a way to optimize it.

Telescopes are one of the greatest inventions that bring lots of unknown objects closer to human eyes to be examined and observed or used as entertainment such as when observing wild life like birds and whales. There are so many types of telescopes if you dig in deeper into the sub-type but the original design is separated between Refractor and Reflector only.

  • Refractor Telescopes

The first telescope was a refractor and this is also the one used by Galileo despite he had created his own design without looking at the original model and even upgraded it to have further seeing capability. Refractor is working with lenses or using convex (bending outwards) lenses to collect, focus, and magnify light. Rays reflected by the objects then travel through the main lens where they are focused at the focal length of the eyepiece. This design allows for high magnification and is great for celestial objects like the moon and planets.

They will most likely produce crystal clear images while the enclosed design requires for less to no maintenance as well as suffering from thermal degradation. The drawback is since lenses are difficult to make perfectly, the cost can go very fast if you need those in larger aperture. The main drawback is it suffers from chromatic aberration which causes a rainbow effect in your image.

 Celestron Edge HD Meade ACF
Product Dimensions38.5 x 21.5 x 21.5 inches
22 x 90 x 27 inches
Shipping Weight72.6 pounds

75 pounds
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  • Reflector Telescopes

Since refractors have such issues, Isaac Newton created his own design which is now using mirrors instead of lenses and the method is by using a concave primary mirror at the end with a secondary small diagonal mirror at the beginning and focusing with an eyepiece. Surprisingly, while technology has advanced so much, we are still using this same design today. The main advantage of this type is it doesn’t suffer from chromatic aberration anymore and is affordable, making it great for casual users and beginners.

The drawbacks are since the design has an open tube, they will suffer from thermal degradation as well as require maintenance every now and then especially collimation. This can be done in minutes by experienced people but a beginner may need more effort to do them properly.

About Celestron Edge HD and Meade ACF

The best telescope is not the most expensive but the one that matches with your type of activities or preference since not all of us have the same opinion on which will do well in our application. There are so many good brands out there which offer good quality telescopes and they also have quite a huge range of options to match every budget but, we recommend choosing well-known names or those specializing in making the device just to ensure reliability.

We are sure you already have a list of favorite brands and among them, both Celestron and Meade will be two prominent options. They are popular names in the telescope market and what’s great about them is the product’s quality itself because you can always rely on them. Of course they also carry tons of models or choices to fit in your personal preference or budget range so everyone can have their best device. Based on what you want, we can start browsing their catalog.

If you are here then it means Schmidt Cassegrain is what you are looking for and for this type, rather than for beginner, we will say it is more of an experienced amateur because if you are just starting, this type can get not only expensive but difficult to understand as well without accompaniment from experienced users. For those who are looking for a telescope used for astrophotography however, they are very ideal and for you, Celestron Edge HD or Meade ACF will be two amazing choices.

These lines are used to call their mid-range SCTs and you can find various sizes in the collections but the smallest will be 6 or 8 inches and the largest will be 14 or 16 inches. Both of them are amazing for various applications including astrophotography, terrestrial observing, or just stargazing if you are willing to spend the fortune. If you are more into the deep sky observation type of user, we still think a huge dobsonian will be cheaper and more suitable for the activity.

Celestron Edge HD and Meade ACF Design

As a Schmidt Cassegrain, one of the best things about Celestron Edge HD and Meade ACF is their short tube because it will be an advantage if you are traveling with them while hunting for a better spot. They are available with the full set including mounting and tripod or just the OTA so make sure to choose the one that benefits you the most. In addition, if you buy the tube only, do match the dovetail with your mounting to make sure they work together.

This is especially important with Edge HD as they are often sold as the tube only but if you check Meade, some of their ACF for example the LX90 8-inch model is paired with double fork mount, field tripod, and even a controller. The tube diameter follows its aperture but the material itself seems to be aluminum or metal including the mounting if you pick the Meade ACF series with the fork mount included.

Celestron Edge HD and Meade ACF Specification

Depending on which size you are going with, Celestron Edge HD and Meade ACF are very much the same in specification. For example, the smaller 8-inch version will have the same 203.2 millimeters aperture and a focal ratio of f/10 or focal length of 2000mm. What makes these two are considered experienced telescopes is because they are a coma-free design which means they are made to reduce aberration that is inherent in telescopes using parabolic mirrors, making them overall better for astrograph and observation.

Celestron claimed that their optics produce a focal plane more than three times flatter than a standard SCT as well as dramatically flatter than other coma-free designs. It is meant to give you a better experience because not only focus in the middle of the field of view, the Edge HD line also brings the focus into the edge of your FOV. On the other hand, Meade claimed the ACF is a variant of the RC telescope despite not using two hyperbolic mirror combinations.

Instead, the design replaces traditional spherical SCT secondary mirror with a hyperbolic secondary mirror with the full aperture corrector slightly altered in shape and then combined with a spherical primary mirror.

Celestron Edge HD and Meade ACF Mount

The next part we want to mention is their mounting because you can combine them with almost anything. For Edge HD, this model is using CGE saddle mount so Celestron CGEM Vs CGEM II will fit them. For ACF since they are only coming with fork mounting, you can buy a wedge to install them in an EQ style. These mountings are highly capable and you can add a controller as well in which Meade already includes it in the box.

Celestron Edge HD and Meade ACF Performance

As for the performance, Celestron Edge HD and Meade ACF are amazing; they are very much the same to each other depending on the aperture size of your choice. They are very bright and you can already see plenty with the eyepiece they packed in the box but we recommend to also buy a lower or higher powered eyepiece to complement your experience. For example the 11-inch Edge HD with its 23mm included is complimenting the aperture well with a field of view of 89-degree.

With this piece you can see the yellow and blue stars of Albireo which looks wonderful as its intense colors are very apparent. This is also the same Meade ACF and for this they even include Plossl eyepiece which already gives so much. With this you can observe M15 which looks great at 100x but at 400x your field of view will be filled with stars from edge to edge which proves the ACF design is working amazing as well.

Celestron Edge HD vs Meade ACF

As aberration-free SCT, these telescopes are amazing for those who are looking for the best experience. They are not affordable and easy for beginners but performance wise, you can expect much from them and personally we like how well-built they are. We do hope Edge HD is sold in a set as well to keep the shopping simple.

- 14" EdgeHD Optical Tube Assembly
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 3910mm focal length (f/11)
- 12'' f/10 Advanced Coma-Free Optics
- 3048mm focal length
- Ultra-High Transmission Coatings (UHTC)
- Standard Field Tripod


All in all you can pick any of these models as they are very much capable of delivering a great experience. Between the two however, we prefer Meade ACF just because you can buy them in a set to simplify the shopping process.


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