The distinctions between AO (Adjustable Objective) riflescopes and SF (Side Focus) riflescopes are as follows:
1. Different Adjustment Positions:
①. AO: The adjustment mechanism is located at the front of the objective lens end of the scope, typically requiring the user to manually turn the adjustment knob at the front of the objective tube. In prone or certain specialized positions, this can be inconvenient, as the shooter must move their hand to the front of the scope to make adjustments.
②. SF: The focusing knob is situated on the side of the scope, near the ocular lens. This design allows shooters to easily adjust while keeping their eyes close to the ocular lens, without altering their shooting stance. This convenience is particularly advantageous in scenarios where quick and frequent parallax adjustments are necessary.
2. Optical Performance:
①. AO: In terms of parallax adjustment, AO offers higher precision, allowing for finer adjustments. Its simpler adjustment structure and more compact arrangement of internal optical elements result in a more direct light transmission path, which can reduce light loss and scattering, thereby providing clearer and more stable images.
②. SF: While the side focus mechanism may impact light transmission to some extent, modern SF scopes typically employ advanced optical designs and multi-coated technologies to effectively minimize light loss and scattering, ensuring good optical performance. Nonetheless, in extreme conditions—such as low light or high optical performance demands—AO might excel slightly in optical fidelity.
3. Different Applicable Scenarios:
①. AO: It is better suited for scenarios where the shooting distance is known and frequent parallax adjustments are unnecessary, such as fixed target shooting or competitions with predetermined distances. Its straightforward operation maintains stability once the parallax is set, making it a commendable option for shooters pursuing high precision.
②. SF: This scope is adept in a variety of complex shooting situations, particularly when rapid target acquisition and uncertain shooting distances are involved. The ease of adjustment offered by SF significantly enhances shooting accuracy and efficiency, making it widely utilized in hunting and tactical shooting environments.
There are many rifle scopes on the market. Today we also recommend several new rifle scopes that YSS 2024 has just launched, which are very cost-effective.
In modern shooting sports and hunting activities, accurate aiming equipment is essential. With its persistent pursuit of excellence, the YSS brand has launched a series of latest rifle scopes that combine advanced optical technology with exquisite craftsmanship to provide shooters with unparalleled visual experience and accuracy. These scopes not only use high-transmittance lenses to ensure that the target can be clearly seen in various lighting conditions, but also come with specially designed waterproof and anti-fog functions, allowing you to shoot confidently in bad weather. Each YSS scope is rigorously tested and certified to ensure stable performance in the most extreme environments, fully meeting the demanding requirements of professional shooters and hunters for accuracy. Whether it is long-range shooting, sports hunting, or competitive competitions, these latest products from YSS will become shooters' trusted partners, leading them to success in every aiming.
①. Excellent performance. The YSS 4-16x44 first focal plane rifle scope is designed for long-range, competition and hunting. 44mm objective lens; 4-16x magnification; elevation/windage can be adjusted (±45′); 79mm—90.5mm long pupil distance; parallax adjustment 8-infinity; diopter correction ±2D.
②. One-piece tube. The scope is made of high-strength aluminum alloy and adopts an one-piece tube structure, which is absolutely higher in strength and durability. Whether in harsh outdoor environments or in high-speed movement, this one-piece tube structure can effectively resist vibration and shock (1000G SHOCKPROOF), providing users with a stable and precise aiming experience.
③. High-definition optical system. The YSS optical system provides impressive resolution, edge-to-edge clarity, and greatly reduces chromatic aberration. The fully multi-coated lenses provide excellent light transmittance for excellent clarity and low-light performance.
④. Easy to use, first-class accessories. YSS zeroing system provides simple setup, fast and reliable zeroing. Side knob parallax adjustment allows for quick and easy parallax adjustment. Included throw rod allows for quick switching between magnifications. Included matte hood prevents glare, protects scope lens and enhances visual comfort.
⑤. IPX7 waterproof. Nitrogen purge and O-ring seal provide waterproof and fogproof performance. The exterior is anodized for durability and corrosion resistance.
①. Best performance. YSS rifle scope offers 4-16x magnification options, giving you the freedom to choose. FFP design.
②. MIL-DOT reticle. In shooting, this reticle helps shooters make accurate angle measurements. It can help snipers accurately aim at targets and shoot in different environments and distances. It can help hunters improve hunting success rates and help competitive athletes improve shooting accuracy. Center luminous area (red).
③. Ultra-clear image. This rifle scope has a 6-level brightness adjustment function, combined with a fully coated wide green glass lens, it can be used in a variety of environments. Users can flexibly adjust it according to the lighting conditions of the surrounding environment, making it clearly visible in bright daytime sunlight and not dazzling in dim night environments. YSS rifle scopes also combine parallax adjustment and diopter correction to make the image clearer. Improves shooting accuracy.
④. High-quality weather resistance. Hard anodizing provides a low-glare matte surface to help camouflage positions. O-ring seals and nitrogen purge filling provide waterproof and fogproof performance (IPX7 waterproof). The sturdy aluminum alloy housing and one-piece tube structure design mean that this scope is shockproof (1000G shockproof). Reliable waterproof, shockproof and fogproof performance and the low-dispersion glass high-performance optical system of the YSS scope will not stop your hunting season no matter what the weather.
⑤. Complete accessories. There are flip-up lens caps, sunshade (lens hoods), throw level and wrenches.
①. Excellent performance. High precision tactical rifle scope. 6 levels of brightness adjustment, 3-12x magnification, a 44mm objective lens, an eye relief of 3.39-3.60 inches, FOV 7°-1.67°, 0.1 MIL Click Value, ±45′ Total Adjustment.
②. First Focal Plane FFP Rifle Scope. First focal plane reticle stays valid at all power settings allowing you to fully utilize the specially designed reticle that shrinks or grows along with your target as you zoom in or out. There is a red glowing area in the center.
③. Wide Green Fully Coated Lenses. Fully Multicoated optics effectively reduces reflected light and increases the transmission of light giving you a brighter image than normal single coated lenses.
④. Side Focus. Exposed turrets and a side parallax knob give users the tools needed for long range application. The fast focus eyepiece allows quick and easy reticle focusing.
⑤. Precision Zero Stop system. Allows you to lock down your zero position and dial back to it with a sharp and precise stop right at your zero mark even you are turning it in pitch-dark or blinded folded.