Best Canon Lens For Astrophotography

Best Canon Lens For Astrophotography

Astrophotography is a type of photography that deals with celestial objects like the moon, planets, stars, galaxies and other deep-sky objects.

When it comes to astrophotography, using a best Canon lens for low light situations will give you amazing results because they have wide aperture lenses with good optics and sensors that can capture bright celestial bodies even in dim conditions.

The Best Canon Lens For Astrophotography is the one that will take you out of your comfort zone and help you capture the most beautiful pictures possible. There are so many factors that go into choosing a lens, that it can be hard to know which one will work best for your specific needs.

You don’t need expensive equipment or sophisticated camera gear; instead, all you need is an entry-level camera with decent optics so as to be able to enjoy your hobby without breaking your bank account!

This article covers everything you need to know about finding the perfect lens for astrophotography, including what type of lens is best suited to your needs, how much gear you should have on hand, and more.

Read Also: 10 Best Wide Angle Lenses For Sony A7III 2022 – Reviews

Lens choice is one of the most important decisions you’ll make when starting astrophotography. A good lens is essential for taking beautiful photos of the night sky. But there are so many options out there that it’s hard to know where to begin! This guide covers the Best Canon Lens For Astrophotography.

1. Canon EF 50mm f/1.2L USM Ultra-Fast Standard AutoFocus Lens


  • Brand: Canon
  • Lens Type: Standard
  • Compatible Mountings: Canon EF
  • Camera Lens Description: 50 Millimeters
  • Maximum Focal Length: 50 Millimeters

The EF 50mm f/1.2L USM is a peerless new standard lens featuring an ultra-large aperture for a narrow depth of field and soft background blur so loved by photographers everywhere. The EF 50mm f/1.2L USM is suitable for any shooting situation; its lens coatings and construction are optimized to minimize the ghosting and flare that frequently occurs when lenses are used with digital cameras.

The circular aperture creates a beautiful softness in out-of-focus areas when shooting at wider apertures. This lens also features ultra-low dispersion (UD) glass to minimize chromatic aberration, as well as aspherical elements to eliminate astigmatism and yield even higher resolution right out to the image periphery, even at full aperture. The floating optical system can focus down to 0.45m/17.7in.

In addition, the EF 50mm f/1.2L USM uses a Ring-type USM, high-speed CPU, and optimized algorithms to achieve an autofocus speed approximately 1.8x faster than the current EF 50mm f/1.2 USM. And with full-time manual override, you’ll be able to take advantage of Canon’s predictive focusing system

2. Sigma 14-24mm F2.8 DG HSM


  • Brand: Sigma
  • Lens Type: Wide Angle
  • Compatible Mountings: Sigma SA
  • Maximum Focal Length: 24 Millimeters
  • Minimum Focal Length: 14 Millimeters

Sigma’s 14-24mm F2.8 DG HSM Art lens for full-frame cameras is the long-awaited answer to the question, “What does Sigma have in store for their next ultra-wide-angle zoom lens?” The answer is simple: a high-performance optic that delivers on all fronts and comes in at a price point well below what you’d expect from a lens with this kind of performance.

The Sigma 14-24mm F2.8 DG HSM Art lens features a complex optical formula comprised of 17 elements in 11 groups, including a trio of FLD elements, four SLD elements, and three aspherical glass elements. The combination of these special elements allows the lens to deliver some unique advantages over its counterparts, including reduced chromatic aberration, distortion, and vignetting.

With its large-diameter aspherical front element and two aspherical rear glass elements, Sigma has been able to effectively distribute these high-refractive-index glass elements further away from the image plane to suppress sagittal coma flare and achieve an extremely high level of optical performance throughout the entire zoom range. This approach also minimizes the variation of aberration changes due to focusing while maintaining excellent peripheral brightness even at a wide-open aperture.

3. Canon EF 24mm f/1.4L II USM Wide Angle Lens


  • Brand: Canon
  • Lens Type: Wide Angle
  • Compatible Mountings: Canon EF
  • Camera Lens Description: 24 Millimeters
  • Maximum Focal Length: 24 Millimeters

The Canon EF 24mm f/1.4L II USM is a high-performance, weather-resistant wide-angle lens that is distinguished by its particularly large aperture. In comparison with conventional lenses, the large f/1.4 maximum aperture enables a fast shutter speed, even in poor light conditions, and can also be used for selective focus effects.

The optical design of the lens is optimized for performance on the EOS 1Ds Mark III camera, and also provides excellent results on other digital SLR cameras with an APS-C size sensor thanks to its circular aperture with eight blades, two aspherical elements, and one UD (ultra-low dispersion) element that help to minimize distortion and chromatic aberrations. The floating optical system ensures high image quality at all focusing distances.

The lens features a ring-type USM drive for a very fast and quiet autofocusing and full-time manual focusing override. The distance scale has markings in meters and feet.

4. Canon RF35mm F1.8 IS Macro STM Lens


  • Brand: Canon
  • Lens Type: Macro
  • Compatible Mountings: Canon RF
  • Camera Lens Description: 12 Millimeters
  • Maximum Focal Length: 35 Millimeters

The Canon RF35mm F1.8 IS Macro STM Lens is a compact and versatile lens designed for EOS R series cameras. With a 0.5x magnification ratio, this lens allows you to capture photos of small objects, such as flowers and insects, with amazing detail and sharpness. The minimum focusing distance at the 0.5x magnification setting is just 0.56 ft., while the minimum focusing distance at 1x magnification is 1 foot, allowing you to get even closer to your subjects. For optimal performance, this lens utilizes a 12-pin communication system that allows it to work with the EOS R series camera’s sophisticated AF system for fast, accurate focusing in various shooting situations.

When shooting handheld close-up shots, the optical image stabilization (IS) of this lens can help reduce camera shake by up to 5 stops. This helps provide steadier shots when working in low light or at telephoto lengths. Additionally, this lens features an internal stepping motor and includes an optimized control ring that provides smooth control over focus and other settings (depending on the camera), making it ideal for both stills and video recording.

5. Canon EF 50mm f/1.8 STM Lens


  • Brand: Canon
  • Lens Type: Standard
  • Compatible Mountings: Canon EF
  • Camera Lens Description: 50 Millimeters
  • Maximum Focal Length: 50 Millimeters

This 50mm lens is one of the most popular options in the Canon lineup, and after using it for over a year, I can tell you that it really is an amazing deal. The “nifty fifty” is a must-have lens in any photographer’s kit, and this particular lens has been my go-to for portraits, interior shots at night, and just about any other situation where I need to get in close without losing my f/1.8 aperture.

It’s a huge improvement over the plastic kit lens that came with my camera body, and having the extra stop of light makes it possible to take great photos in low-light situations. The nifty fifty also produces beautiful bokeh effects when shooting close up—I’ve found that this lens is great for taking those “bokehlicious” photos where you throw the focus on your subject so far out of whack that everything else becomes a soft blur of beautiful light. You know what I’m talking about.

If you’re new to photography or just looking for a solid, basic lens to use from day to day (especially if you’re a portrait photographer), check out the Canon EF 50mm f/1.8 STM Lens.

6. Sigma 20mm f/2 DG DN Contemporary Lens


  • Brand: Sigma
  • Lens Type: Prime lens
  • Compatible Mountings: Sony E
  • Maximum Focal Length: 20 Millimeters
  • Minimum Focal Length: 20 Millimeters

The Sigma 20mm f/2 DG DN Contemporary Lens is a versatile wide-angle prime designed for full-frame Sony E-mount mirrorless cameras. Its wide field of view suits working in tight interiors, landscapes, and astrophotography, and its bright f/2 maximum aperture enables working in available lighting conditions and also offers increased control over the depth of field.

One aspherical element and two low dispersion elements are used to reduce distortion and chromatic aberrations while also contributing to high clarity and sharpness. Complementing the imaging attributes, this lens has a durable all-metal construction that is also weather-sealed for dust and moisture protection.

The fast f/2 maximum aperture benefits working in low-light conditions and also affords greater control over focus placement for shallow depth of field imaging.

Two FLD elements limit color fringing and chromatic aberrations in order to achieve improved clarity, contrast, and color rendering. Additionally, one aspherical element is featured in the optical design, which helps to minimize spherical aberrations for improved sharpness and accurate rendering.

A NanoPorous Coating has been applied to individual elements to suppress lens flare and ghosting for increased contrast when working in strong lighting conditions.

7. Canon RF 15-35mm F2.8 L IS USM


  • Brand: Canon
  • Lens Type: Telephoto
  • Compatible Mountings: Canon RF
  • Maximum Focal Length: 2.8 Millimeters
  • Minimum Focal Length: 2.8 Millimeters

Canon RF 15-35mm F2.8 L IS USM is a high image quality and bright f/2.8 wide-angle zoom RF L lens that comes equipped with the latest technology, including optical image stabilization of up to 5 stops of shake correction, high speed, smooth and quiet autofocus with Nano USM, minimum focusing distance of 0.92 ft./0.28M and control ring for direct setting changes.

With versatile focal lengths from wide-angle to mid-telephoto range, this lens is ideal for both photo and video applications and features a constant f/2.8 maximum aperture for consistent performance throughout the zoom range.

The Canon RF 15-35mm F2.8 L IS USM lens benefits from the use of three Aspherical lens elements to help reduce spherical aberrations and distortions throughout the zoom range while perpetuating edge-to-edge sharpness and illumination.

Three UD lens elements have been incorporated into the optical design to minimize chromatic aberrations in order to produce greater clarity and color accuracy. An Air Sphere Coating (ASC) has also been applied to lens elements to reduce backlit flaring and ghosting for greater contrast when working in strong lighting conditions.

8. Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens


  • Brand: Canon
  • Focal Length Description: 17 -40 Ultra wide
  • Lens Type: Wide Angle
  • Compatible Mountings: Canon EF
  • Camera Lens Description: 40 Millimeters

The Canon EF 17-40mm f/4L USM is a high-performance, water-resistant, and ultra wide-angle Canon L-series lens. It has been specifically designed for improved edge-to-edge image quality that will meet the strict requirements of professional and high-end amateur photographers.

In order to deliver this level of performance, the EF 17-40mm f/4L USM uses three high-precision aspherical lens elements. These lens elements help achieve compact size and reduce chromatic aberration, distortion, and various other forms of optical degradation.

The EF 17-40mm f/4L USM features an improved minimum focusing distance of 11 inches (28cm) at all zoom settings, which is useful for photographers in smaller spaces trying to work with closer subjects. This lens also features Canon’s Super Spectra coatings to ensure accurate color balance while minimizing ghosting and flare. Finally, it utilizes ring USM (Ultrasonic Motor) technology to ensure fast and accurate autofocusing while providing a full-time manual focus override.

9. Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens


  • Brand: Canon
  • Lens Type: Wide Angle
  • Compatible Mountings: Canon EF-S
  • Camera Lens Description: 18 Millimeters
  • Maximum Focal Length: 18 Millimeters

The Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens is a super wide-angle zoom lens designed specifically for EOS APS-C cameras. It provides a 35mm-equivalent focal length range of 16-28.8mm, covering ultra-wide to wide-angle perspectives to suit working in a range of environments.

The optical design incorporates one aspherical element and one UD element to help minimize chromatic aberrations throughout the zoom range as well as contribute to greater image sharpness and clarity. A four-group optical zoom system provides a more compact overall form factor, and an Optical Image Stabilizer helps to minimize the appearance of camera shake by up to four shutter speed stops for sharper handheld shooting.

Complementing the imaging capabilities, this lens also features a Stepping Motor (STM) to provide near-silent, smooth, and quick autofocus performance that is ideal for video applications as well as tracking moving subjects in stills mode.

10. Canon EF 16-35mm f/2.8L ll USM Zoom Lens


  • Brand: Canon
  • Focal Length Description: EF 16-35mm F.2.8L II USM
  • Lens Type: Wide Angle
  • Compatible Mountings: Canon EF
  • Camera Lens Description: 10 Millimeters

The Canon EF 16-35mm f/2.8L II USM is the successor to one of Canon’s most popular L-series lenses, and it’s already being hailed as one of the best wide-angle lenses on the market. A standard zoom lens specifically designed for digital photography, this lens features a large aperture that maintains a constant f/2.8 throughout its focal length range.

This makes it ideal for shooting in low light or when using a large aperture for shallow depth of field, which is especially useful when working with subjects that are close to the camera. Also, because the lens’ minimum focusing distance is only 11 inches at all focal lengths, you can easily get in close and still capture everything else in view.

This lens has been improved to deliver outstanding optical performance – even at wide apertures – and features three high precision aspheric lens elements to produce superior image quality. It also includes two UD glass elements to correct chromatic aberration and ensure sharpness from corner to corner, along with Canon’s second-generation Subwavelength Structure Coating (SWC) that helps reduce flare and ghosting for an overall clean image.

Things to consider before buying the best Canon Lens For Astrophotography

Light gathering ability of the lens

Before you start planning your night photography, look at the lens specifications to see how much light it can gather. This is important because you’ll be shooting at night, when light is scarce. One of the main lens specifications for this is something called its “f-stop” or aperture range. Aperture refers to the size of a lens opening that allows light to pass through and reach the camera sensor or film.

An f-stop may also be referred to as an f/number or focal ratio, where f stands for focal length (measured in millimeters). As an example, a 50mm lens has a focal ratio of f/1.4 if its aperture openings are 70mm (50 x 1.4 = 70) in diameter. In general, higher numbers such as f/8 mean that the aperture openings are smaller and less light will pass through; lower numbers such as f/1.4 mean that the aperture openings are larger and more light will pass through.

The speed of the lens

Choosing a lens for astrophotography comes down to the speed of the lens. The fastest aperture you can find is ideal. A fast lens has a large aperture that can let in more light, which is important when taking photos at night.

The speed of a lens is measured using f-stops, and it describes its maximum aperture size. The smaller the number, the larger the aperture opening and thus this means faster.

For example, a Canon EF 50mm f/1.2 L USM Lens is faster than Canon EF 50mm f/1.8 STM Lens because f/1.2 opening is larger than f/1.8 opening (i.e., 1 / 1.2 = 0.83 vs 1 / 1.8 = 0 .56). Therefore, if you would like to take pictures of stars at night with your camera on a tripod, slower lenses are not recommended as they have slower maximum aperture (f-stop) values and will require longer exposures resulting in star trails even when you use lower ISO value which increases noise levels in your images.

Size and Weight of the Lens

The size and weight of your lens can be a significant factor in how and when you use it. If you are travelling and need to carry your gear around then a lens that is light and small will be a priority.

On the other hand, if you are shooting from home or have someone to help out with carrying then the difference between sizes might not matter that much. The end result is going to heavily depend on what kind of shots you want to capture and your own personal preferences.

Focal length and cost

Your choice of lens will be determined by the focal length. The focal length is determined by the size of your camera sensor. The focal length refers to the ratio between the distance of your camera sensor and the point at which light rays converge into focus after passing through a lens. A shorter focal length means that you can see a wider view, while a longer focal length allows you to zoom in closer to whatever it is you’re shooting.

A telephoto lens has a longer focal length and allows you to get close-up shots of distant objects without moving closer yourself, while a wide-angle lens has a short focal length, so it captures a wide view of what’s in front of it. The cost of your Canon Lens For Astrophotography is also affected by its weight, which depends on the size of your sensor and the speed with which it focuses on an object or person’s face.

Focusing Distance and Focus Limit Switch

The focus distance is the minimum distance between the lens and the subject for accurate focusing. This distance varies from lens to lens. The closer subjects can be focused, the higher their magnification will be. The more distant subjects can be focused, the larger your field of view will be.

The closer you can focus a lens, the higher its magnification will be-both for close-ups of stationary subjects and for maintaining a consistent image size of moving subjects when focusing on them as they approach or recede from you.

At very close distances, however, depth of field becomes so shallow that it may become difficult to get a large enough area in sharp focus to remain pleasing. This effect can sometimes be used creatively (for example, by blurring out or obscuring elements that might otherwise have distracted from your main subject), but it’s an effect worth keeping in mind when choosing optics based upon their minimum focus distance capabilities.

Some lenses also include a focus limit switch that enables you to limit the range over which they will hunt to achieve focus: For example, instead of searching through their entire range before locking onto either a near or distant target (each requiring different amounts of time for different lenses), this switch enables them to ignore targets outside their selected range and thus lock onto targets inside that range faster than they would have been able to had they needed to search throughout their entire focusing range first. The shorter the focusing range in which such lenses are limited when using this feature,the faster they will lock into place.

Image Stabilization

Image stabilization is an important feature of the best Canon lens for astrophotography. The image stabilization reduces the effects caused by camera shake and also helps improve the quality of your photos.

In order to get a good image, it is important to use a lens with good image stabilization. There are many lenses available with this feature, but you need to choose carefully in order to get a good one.

Filters And Filter Threads

When you are going to buy a lens, you need to check the filter threads of the lens. It is so because it will help you for attaching a filter with the lens. A camera filter is nothing but a glass or plastic disc. It helps photographers for controlling different light effects in their pictures. Apart from this, it is also used for reducing UV rays and protecting lenses from dust, dirt and moisture etc.

The filters work either by altering wavelengths of light that reach the sensor area or by changing the way focal plane sensor emits light. In this way, they are able to improve color in your images and remove unwanted reflections in your photography etc.

Various types of filters you can find in the market—UV, ND and polarizing filters etc. You can use these filters according to your specific requirements if shooting landscapes then you can use ND or polarizer filters etc.


In this article, we covered the best Canon Lens For Astrophotography. This lens gives you a beautiful bokeh in the background and great low-light performance. We also discussed some other lenses that might be a better fit for your needs.

Canon’s lenses have always been great for astrophotography, but if you are looking for something with more reach or just want something different then there are plenty of options out there to choose from!

Whatever Canon Lens For Astrophotography you decide on, make sure it suits your needs and budget so as not to regret purchasing later down the line