AstrHori 28mm F13 2X Macro vs AstrHori 18mm F8 APS-C Macro (2026): Key Differences
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The astrhori 28mm f1 3 probe lens vs 18mm f8 aps c wide comparison highlights two distinct macro tools. Both offer 2x magnification, detachable designs, and waterproof fronts for narrow spaces. They share built-in ring lights and follow-focus gears. The main difference lies in sensor format and focal length. One targets full-frame systems with a wider angle, while the other suits APS-C bodies with a wider perspective. You must choose based on your camera mount and desired field of view.
Key differences
| Aspect | AstrHori 28mm F13 2X Macro Probe Lens | AstrHori 18mm F8 APS-C Macro Probe Lens |
|---|---|---|
| Sensor Format | Full Frame | APS-C |
| Focal Length | 28mm | 18mm |
| Lens Mount | Canon RF | Fuji X |
| Maximum Aperture | F13 | F8 |
| Minimum Focusing Distance | not listed | about 0.05m |
Which one should you choose?
Choose AstrHori 28mm F13 2X Macro Probe Lens if
- You use a Canon RF mirrorless camera.
- You need a wider field of view for environmental macro shots.
- You prefer a larger sensor format for your work.
Choose AstrHori 18mm F8 APS-C Macro Probe Lens if
- You shoot with a Fujifilm X-mount camera.
- You want a wider angle to capture more context.
- You need a specified minimum focusing distance of 0.05m.
Verdict: Choose the 28mm lens if you shoot with Canon RF cameras and need a full-frame macro tool. Pick the 18mm lens if you use Fujifilm X-mount bodies and want a wider angle. Both provide 2x magnification and waterproof designs for unique shooting scenarios.
Macro Probe Lens Comparison
Sensor Format
The AstrHori 28mm F1.3 is designed for full-frame sensors, while the AstrHori 18mm F8 targets APS-C bodies. This distinction matters for your camera choice. If you shoot with a full-frame mirrorless camera, the 28mm lens utilizes the entire image circle. The 18mm lens is optimized for APS-C sensors, which have a smaller sensor size. Using the 18mm lens on a full-frame body may result in vignetting or a cropped image circle. Conversely, the 28mm lens on an APS-C body would likely exhibit heavy vignetting. You must match the lens format to your camera sensor to get the correct image coverage and avoid black corners in your photos.
Lens Mount
Mount compatibility is the primary differentiator between these two tools. The AstrHori 28mm F1.3 is available for Canon RF mount cameras, including models like the EOS R, R5, R6, and R7. The AstrHori 18mm F8 is built for Fujifilm X mount cameras, supporting bodies such as the X-T series and X-S series. These mounts are not interchangeable. You cannot use either lens on a camera system it was not designed for without an adapter, which may affect functionality. Your choice depends entirely on your existing camera brand. If you shoot Canon, the 28mm is your option. If you shoot Fujifilm, the 18mm is your option.
Focal Length
The focal length determines your field of view and working distance. The AstrHori 28mm lens offers a wider perspective compared to the 18mm lens. On their respective sensor formats, the 28mm lens provides a broader angle, allowing you to capture more of the surrounding environment alongside your macro subject. The 18mm lens is narrower, offering a tighter field of view. This can help isolate small subjects like insect wings or jewelry details with less background distraction. The wider 28mm angle is better for integrating the subject with its context. The narrower 18mm angle is better for tight, isolated macro shots. Choose based on how much background you want to include.
Aperture Range
Aperture control affects depth of field and light intake. The AstrHori 28mm F1.3 has an aperture range of F13 to F40. The AstrHori 18mm F8 ranges from F8 to F28. The 18mm lens offers a wider maximum aperture of F8, allowing more light to enter the sensor. This can be helpful in darker environments, such as inside animal caves or narrow pipes. The 28mm lens starts at a narrower F13, requiring more light or higher ISO settings. However, both lenses are designed for macro work where deep depth of field is often desired. The 18mm lens provides slightly more flexibility in low-light conditions due to its wider starting aperture.
Minimum Focusing Distance
Proximity to your subject is critical for macro photography. The AstrHori 18mm lens specifies a minimum working distance of about 0.05 meters. This allows you to get very close to small subjects like flower petals or product details. The data for the AstrHori 28mm lens does not explicitly list its minimum focusing distance. However, both lenses feature a probe design that allows you to reach into tight spaces. The 18mm lens gives you a specific metric for close-up capability. If you need to know the exact closest distance for your shots, the 18mm lens provides that data. The 28mm lens relies on its probe structure for access rather than a specified short working distance.
Which AstrHori Probe Lens Suits You
Full-frame mirrorless users
This 28mm lens is built for full-frame sensors, ensuring your images utilize the entire frame. The 28mm focal length offers a wider field of view compared to the 18mm APS-C model. It features a 2x magnification ratio and a waterproof front, making it ideal for detailed macro work in tight spaces on your full-body camera.
APS-C camera owners
Designed specifically for APS-C sensors, this 18mm lens matches your camera body perfectly. It provides 2x magnification with a minimum focusing distance of about 0.05m. The 18mm focal length on your crop sensor delivers a tighter angle of view. It includes a detachable design and built-in ring light for versatile macro shooting.
Shooters needing wider macro angles
The 28mm focal length on a full-frame sensor provides a wider perspective than the 18mm APS-C option. This allows you to capture more of the subject and environment in your macro shots. The lens maintains 2x magnification while offering a larger depth of field, helping you integrate the subject with its surroundings more effectively.
The products compared
AstrHori 28mm F13 2X Macro Probe Lens
Best for: tight space and underwater macro photography
- Lens Mount
- Canon RF
- Focal Length
- 28mm
- Maximum Aperture
- F13
- Sensor Format
- Full Frame
- Lens Type
- Macro
- Dimensions
- 18 × 2.36 × 2.36 inches
View on Amazon: AstrHori 28mm F13 2X Macro Probe Lens Affiliate link
This AstrHori lens is a 28mm full-frame probe lens for Canon RF mount cameras. It offers 2x macro magnification and a waterproof front section made of sapphire glass. The design includes a built-in ring fill light with ten brightness levels. Its slender body splits into two sections for storage. You will use this for tight spaces, macro work, or underwater shots up to 20cm.
Pros
- 2x macro magnification for detailed close-ups
- Waterproof front section with sapphire glass
- Built-in ring fill light with ten levels
- Detachable design for narrow space access
- Full frame sensor compatibility
Cons
- Minimum aperture is F13, limiting low-light performance
- Fixed 28mm focal length restricts versatility
- Long 18-inch length requires careful handling
Good fit if
- You need to shoot in tight spaces like animal caves
- You require waterproof macro capabilities
- You want detailed product photography with fill light
Skip if
- You need a standard wide-angle lens for landscapes
- You prefer lightweight, non-detachable glass
- You require fast apertures for low light
Verdict: AstrHori 28mm F1.3 Full Frame Probe Lens is a specialized tool for photographers who need to reach into tight spaces or shoot underwater. It suits those prioritizing macro detail and waterproof durability over general versatility.
AstrHori 18mm F8 APS-C Macro Probe Lens
Best for: confined space macro photography
- Lens Mount
- Fuji X
- Focal Length
- 18mm
- Maximum Aperture
- F8
- Sensor Format
- APS-C
- Minimum Focusing Distance
- about 0.05m
- Lens Type
- Macro
View on Amazon: AstrHori 18mm F8 APS-C Macro Probe Lens Affiliate link
This AstrHori lens is a specialized APS-C wide-angle macro tool designed for Fuji X mirrorless cameras. It features an 18mm focal length and an F8 maximum aperture, delivering 2x magnification for detailed close-ups. The 18-inch slender body includes a detachable front group and a built-in ten-level ring light. Its waterproof front section allows for unique shooting environments, making it a niche tool for specific macro tasks.
Pros
- 18mm focal length with 2x macro magnification
- Built-in ten-level adjustable ring fill light
- Detachable lens structure for narrow spaces
- Waterproof front 20cm section for special environments
Cons
- Fixed F8 aperture limits low-light performance
- 18-inch length requires specific handling technique
- APS-C format restricts full-frame compatibility
Good fit if
- You need high-magnification macro shots of small subjects
- You shoot in tight or dark spaces like caves
- You use Fuji X mount mirrorless cameras
Skip if
- You require fast autofocus for moving subjects
- You shoot primarily with full-frame cameras
- You need a standard wide-angle landscape lens
Verdict: AstrHori 18mm F8 APS-C Probe Lens is a specialized tool for Fuji X users who need extreme close-up details in confined or dark spaces. It suits macro enthusiasts who value manual control and built-in lighting over speed.
Specifications side by side
| Spec | AstrHori 28mm F13 2X Macro Probe Lens | AstrHori 18mm F8 APS-C Macro Probe Lens |
|---|---|---|
| Lens Mount | Canon RF | Fuji X |
| Focal Length | 28mm | 18mm |
| Maximum Aperture | F13 | F8 |
| Sensor Format | Full Frame | APS-C |
| Minimum Focusing Distance | not stated | about 0.05m |
| Lens Type | Macro | Macro |
| Dimensions | 18 × 2.36 × 2.36 inches | 18 × 2.36 × 2.36 inches |
| Size | for Canon RF | for Fuji X |
| Color | Direct View | Direct-view |
| Model | not stated | WDJT-18F8-FX |
Frequently asked questions
Does the 28mm lens work on APS-C cameras?
The AstrHori 28mm F1.3 is designed for full-frame sensors. Using it on an APS-C body will result in significant vignetting and a cropped field of view. It is not recommended for APS-C cameras unless you specifically want that narrow, dark effect. Stick to the 18mm model for APS-C systems.
Can I use the 18mm lens on a full-frame camera?
The AstrHori 18mm F8 targets APS-C bodies. Mounting it on a full-frame camera will likely cause heavy vignetting and black corners in your images. The optical design covers the smaller APS-C sensor area. For full-frame mirrorless cameras, the 28mm lens provides the correct coverage and image circle.
What is the maximum magnification of these probe lenses?
Both the 28mm and 18mm AstrHori probe lenses offer 2x magnification. This allows you to capture subjects at twice their actual size on the sensor. This high magnification is ideal for extreme close-up details in macro photography. It is consistent across both models regardless of their different focal lengths.
Are these lenses waterproof for underwater use?
Yes, both lenses feature waterproof fronts suitable for underwater photography. The AstrHori 28mm F1.3 is explicitly noted for underwater macro photography. The 18mm F8 is also designed for confined and potentially wet environments. You can use them in water without damaging the optical elements, making them versatile for aquatic subjects.
Do these lenses have built-in lighting?
Yes, both probe lenses include built-in ring lights. This feature helps illuminate subjects in dark or confined spaces where external flashes cannot reach. The integrated lighting ensures even illumination without casting harsh shadows. You do not need to attach external light sources, making the setup simpler for tight macro work.
How long are these probe lenses?
Both the 28mm and 18mm models measure 18 inches in length. This extended length allows you to reach into tight spaces, such as inside flowers or small crevices. The uniform length ensures consistent handling and balance. You can insert the lens deeply while keeping your camera body safely outside the confined area.
What mounts are available for these lenses?
The AstrHori 28mm F1.3 is available in Canon RF Mount. The AstrHori 18mm F8 is available in Fujifilm X Mount. You must choose the lens that matches your camera system. These are specialized mounts, so compatibility is limited to specific mirrorless cameras. Check your camera brand before purchasing.