When selecting an APS-C DSLR lens for astrophotography, I focus on options that balance light-gathering ability, focal length, and versatility. The VILTROX AF 35mm F1.7 Air E Lens stands out for its low-light performance and portability, making it perfect for capturing wide-angle nightscapes. Meanwhile, the SVBONY SV535 APO Astro Camera Lens offers a dedicated deep-sky imaging experience with a longer focal length and high optical quality, but requires additional accessories. These two lenses exemplify different approaches—one optimized for general low-light use and the other for detailed astrophotography—each with notable tradeoffs to consider.
Key Takeaways
- The VILTROX 35mm F1.7 offers excellent low-light performance and portability, ideal for wide-field astrophotography.
- The SVBONY SV535 is designed for detailed deep-sky imaging, benefiting from a longer focal length and APO optics.
- A tradeoff exists between simplicity and specialized performance: the VILTROX is easier to use but less powerful for deep-sky targets.
- The SVBONY requires extra accessories like filters and potentially electronic focusing, increasing setup complexity.
- Both lenses are best suited to different types of astrophotographers—wide-field enthusiasts versus dedicated deep-sky imagers.
| VILTROX AF 35mm F1.7 Air E Lens for Sony E Mount |  | Best Overall for Wide-Field, Low-Light Astrophotography | Focal Length: 35mm | Maximum Aperture: f/1.7 | Mount Type: Sony E-mount | VIEW ON AMAZON | See Our Full Breakdown |
| SVBONY SV535 APO Astro Camera Lens, F2.8 Telephoto, 105mm Focal Length |  | Best for Deep-Sky, High-Detail Astrophotography | Focal Length: 105mm | Aperture: f/2.8 | Compatibility: Full Frame, M42, E-mount | VIEW ON AMAZON | See Our Full Breakdown |
| aps c dslr lens for astro | Focal Length | Maximum Aperture | Mount Type | Lens Elements |
|---|---|---|---|---|
| VILTROX AF 35mm F1.7 Air E Len | 35mm | f/1.7 | Sony E-mount | 11 elements in 9 groups |
| SVBONY SV535 APO Astro Camera | 105mm | — | — | — |
More Details on Our Top Picks
VILTROX AF 35mm F1.7 Air E Lens for Sony E Mount
The VILTROX AF 35mm F1.7 excels in low-light conditions thanks to its large F1.7 aperture, making it a strong choice for capturing starry skies or Milky Way scenes. Its compact design and lightweight build mean I can easily carry it for night outings without extra bulk. However, its fixed focal length limits flexibility, and it lacks image stabilization, so it’s less suited for capturing fast-moving objects or handheld shots. Compared with longer focal length options, this lens offers a broader view, which is ideal for wide-field astrophotography but less effective for detailed deep-sky objects.
Pros:- Compact, lightweight design for portability
- Large F1.7 aperture delivers excellent low-light sensitivity
- Silent autofocus with face/eye recognition support
- Reduces aberrations and glare with high-quality optical elements
Cons:- Limited to Sony E-mount cameras
- No image stabilization
- Fixed focal length restricts zoom versatility
Best for: Wide-field astrophotographers who prioritize portability and ease of use
Not ideal for: Deep-sky imaging of faint nebulae or galaxies requiring longer focal lengths
- Focal Length:35mm
- Maximum Aperture:f/1.7
- Mount Type:Sony E-mount
- Lens Elements:11 elements in 9 groups
- Focus Motor:STM
- Minimum Focus Distance:0.33m
Our verdict“A versatile, portable lens that excels at wide-field astrophotography on Sony E-mount cameras, but less suited for detailed deep-sky imaging.”
SVBONY SV535 APO Astro Camera Lens, F2.8 Telephoto, 105mm Focal Length
The SVBONY SV535 offers a dedicated approach to astrophotography, with a 105mm focal length and APO triplet design that minimizes chromatic aberration. Its optical quality is evident in sharp, bright images of nebulae and galaxies, especially with its fast F2.8 aperture. The lens’s multiple mounting options and compatibility with filters make it versatile, but the setup can be more complex, requiring additional accessories like filters and electronic focusers for optimal results. It’s heavier than the VILTROX, but its optical design favors detailed deep-sky imaging over wide-field shots.
Pros:- Lightweight and portable relative to its capabilities
- Fast F2.8 aperture captures bright, detailed images
- Wide 105mm focal length ideal for deep-sky objects
- Multiple mounting options including M42 and E-mount
Cons:- Requires additional accessories like filters and electronic focusing
- Primarily designed for astrophotography, not general photography
- Setup complexity may be a barrier for beginners
Best for: Deep-sky astrophotographers seeking detailed, high-contrast images
Not ideal for: Portable, wide-angle nightscape photography or quick setups
- Focal Length:105mm
- Aperture:f/2.8
- Compatibility:Full Frame, M42, E-mount
- Mounting Options:M42 thread, E-mount, Vixen, Arca-Swiss
- Focus Type:Helical focuser
- Optical Design:5-group, 7-element APO triplet
Our verdict“A specialized telephoto lens that delivers excellent deep-sky images but demands extra accessories and setup effort, making it best for dedicated astrophotographers.”
How We Picked
Our selection process centered on lenses that fit APS-C DSLR cameras and are suitable for astrophotography, emphasizing optical quality, aperture size, focal length, and mount compatibility. We prioritized lenses known for low-light performance, minimal aberrations, and user versatility. The tradeoffs between ease of use, optical performance, and setup complexity guided our choices, ensuring each lens offers a distinct advantage for different types of astrophotography while remaining feasible for enthusiasts at various skill levels.
Factors to Consider When Choosing Aps C Dslr Lens For Astro
Choosing the right APS-C DSLR lens for astro requires understanding how focal length, aperture, and optical quality influence astrophotography results. I focus on lenses that maximize light collection, minimize aberrations, and suit different astrophotography styles—whether wide-field nightscapes or detailed deep-sky imaging. Consider your setup, target objects, and how much complexity you’re willing to manage in your gear. The following sections break down key factors to help you make an informed choice.Focal Length and Field of View
The focal length determines how much of the night sky you can capture in a single shot. Shorter focal lengths, like 35mm, give you a broad view of the Milky Way and starfields, making them ideal for wide-field astrophotography. Longer focal lengths, such as 105mm, zoom in on specific objects like nebulae or galaxies, but require more precise tracking and stability. Your choice depends on whether you want sweeping nightscapes or detailed deep-sky images.
Aperture and Light-Gathering
A larger aperture (smaller f-number) allows more light to reach the sensor, which is essential for capturing faint objects. The VILTROX’s F1.7 aperture excels at low-light conditions, enabling shorter exposure times and better star images. Conversely, the SVBONY’s F2.8 aperture, while slightly smaller, still provides ample light for deep-sky imaging, especially when combined with longer exposures and stacking techniques.
Optical Quality and Compatibility
High-quality optics reduce aberrations like chromatic distortion, which can spoil astrophotography images. The SVBONY’s APO triplet design offers excellent correction for color fringing, making it a preferred choice for detailed work. Compatibility with your camera mount and accessories—such as filters and focusers—is equally important. The SVBONY’s multiple mounting options add versatility, while the VILTROX’s simplicity makes it more straightforward for quick setups.
Frequently Asked Questions
What focal length is best for astrophotography on APS-C sensors?
Focal lengths between 24mm and 35mm are ideal for wide-field astrophotography, allowing you to capture large sections of the night sky with minimal distortion. Longer focal lengths, like 105mm, are better suited for detailed imaging of specific objects such as nebulae and galaxies, but they require precise tracking and more stable mounts to prevent star trails.
Do I need special filters for astrophotography with these lenses?
While not strictly necessary for all types of astrophotography, using filters—such as light pollution filters or narrowband filters—can significantly improve image quality, especially in light-polluted areas. The SVBONY lens’s support for 2-inch filters makes it easier to enhance contrast and reduce unwanted light, whereas the VILTROX does not have filter compatibility built-in, which may limit its use in some conditions.
Is autofocus reliable for astrophotography?
Autofocus can be tricky in astrophotography because stars are point sources and require precise focusing. The VILTROX’s autofocus system is silent and supports face and eye recognition, which is great for general photography but less effective in low-light sky scenes. For deep-sky imaging with the SVBONY lens, manual focus with a focusing aid or electronic focusing system is usually preferred to ensure sharpness.
Can these lenses be used for daytime photography?
Yes, both lenses can be used for daytime photography. The VILTROX 35mm F1.7 is versatile for portraits, street scenes, and cityscapes due to its aperture and focal length. The SVBONY 105mm is more specialized for static, detailed shots of distant objects, which can be useful for wildlife or landscape photography, but it’s primarily designed for astrophotography and may not be as convenient for casual daytime use.
What accessories are needed for deep-sky astrophotography with these lenses?
Deep-sky astrophotography often requires additional equipment such as a mount capable of tracking the sky, electronic focusers, and filters. The SVBONY lens benefits from filters and a stable mount for long exposures, while the VILTROX may be used with a standard DSLR tripod for wide-field shots, but for optimal results, a tracking mount is recommended. Both setups will benefit from a remote shutter release or intervalometer to minimize vibrations during exposures.
Conclusion
For astrophotographers focused on wide-field nightscapes or Milky Way shots, the VILTROX AF 35mm F1.7 offers a straightforward, portable solution with excellent low-light performance. Conversely, those aiming to capture detailed deep-sky objects will find the SVBONY SV535 APO more suitable, despite its increased setup complexity. Beginners may prefer the simplicity of the VILTROX, while experienced astrophotographers seeking precision and detail will appreciate the SVBONY’s optical quality and versatility. Your choice hinges on your target objects, setup preferences, and willingness to manage additional accessories.
