7artisans 10mm f/3.5 APS-C VS AstrHori 6.5mm f/2.0 APS-C Fisheye

Both the 7artisans 10mm f/3.5 and the AstrHori 6.5mm f/2.0 Fisheye are prime lenses, but they diverge sharply in almost every other general characteristic. The most immediate practical difference is mount compatibility: the 7artisans is built for Micro Four Thirds bodies, while the AstrHori targets the Canon RF ecosystem — meaning these two lenses are not cross-shoppers for most users, and mount should be the first filter applied.

Where the comparison gets more meaningful is in build and portability. The 7artisans weighs just 125.5 g versus the AstrHori's 268 g — more than double. That weight gap is significant for travel, handheld shooting, or smaller mirrorless bodies where front-heavy lenses create balance issues. The AstrHori counters with weather sealing, which the 7artisans lacks entirely; for outdoor or run-and-gun shooting in unpredictable conditions, that splashproofing is a genuine real-world advantage. The AstrHori also ships with a lens hood included, adding value out of the box, while the 7artisans does not.

Overall, the AstrHori holds a clear edge in build quality and all-weather usability, but the 7artisans wins decisively on portability. If lightweight and compact are priorities, the 7artisans is the stronger choice here; if durability and weather resistance matter more, the AstrHori is the more capable tool — assuming mount compatibility is already satisfied.

The defining optical difference between these two lenses is their angle of view. The 7artisans at 10mm delivers a wide 108° field of view — already an impressively expansive perspective suited for architecture, landscapes, and tight interiors. The AstrHori, at 6.5mm, pushes that to a dramatic 192°, which exceeds a full hemisphere and is only achievable through fisheye optics. That distinction matters enormously: the 7artisans produces a rectilinear-style ultra-wide image where straight lines remain relatively straight, while the AstrHori renders the world with the characteristic spherical distortion of a fisheye — a creative tool, not a general-purpose wide-angle.

Neither lens offers optical image stabilization, so both are equally dependent on the camera body's IBIS system or the shooter's technique in low light. This is a tie that slightly penalizes both in demanding handheld scenarios, though it is a common trade-off at this focal length and price tier.

The edge here depends entirely on intent. For versatile ultra-wide shooting where natural perspective is important, the 7artisans is the more practical choice. The AstrHori's 192° angle of view is a highly specialized capability that no rectilinear lens can replicate — making it the clear winner for fisheye-specific creative work, but a poor substitute for everyday wide-angle use.

Maximum aperture is where these two lenses diverge most meaningfully in this group. The AstrHori opens to f/2.0, a full stop and a third wider than the 7artisans' f/3.5. In practical terms, that difference allows the AstrHori to capture roughly 2.7× more light at its widest setting — a significant advantage for low-light shooting, astro photography, or any situation where avoiding high ISO is a priority. Both lenses share an identical minimum aperture of f/22, so their range at the narrow end is evenly matched.

The blade count tells a secondary but relevant story. The AstrHori's 9-blade diaphragm will produce smoother, more circular bokeh and more aesthetically pleasing sunstars compared to the 7artisans' 5-blade design, which tends to render more angular, star-shaped highlights. At ultra-wide focal lengths bokeh is rarely the primary concern, but for videographers or photographers who stop down for starburst effects, the AstrHori's blade geometry is a tangible benefit.

The AstrHori holds a clear advantage in this group on both counts — a faster maximum aperture and a superior blade configuration. The 7artisans' f/3.5 ceiling is a notable limitation in challenging light, and for users who shoot in dim environments or value optical rendering quality at smaller apertures, the AstrHori is the stronger performer here.

Across most focus characteristics, these two lenses are evenly matched. Both support full-time manual focus override and share an identical 0.2 m minimum focus distance — a close-focusing capability that is genuinely useful at ultra-wide focal lengths for dramatic foreground-subject compositions. Infinity focus is available on both, as expected for lenses in this category.

The one meaningful separator is the AstrHori's built-in silent focus motor, which the 7artisans lacks entirely. A silent motor matters most for video shooters: autofocus hunting or motor noise can bleed into on-camera audio, and smooth, quiet focus transitions are essential for professional video work. The 7artisans, without this, is more reliant on the camera body's own focus-drive system — which may be noisier depending on the host camera.

For purely photographic use, the absence of a silent motor on the 7artisans is a minor concern. But for hybrid shooters or videographers, the AstrHori takes a clear edge here. Everything else in this group is a draw.