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Big Mike's High-Power 420- vs Sigma 18-

Updated July 2026 — Big Mike's High-Power 420- wins on price and compatibility, Sigma 18- wins on portability and optical.

The High-Power lens offers exceptional zoom capabilities at a lower price, while the Sigma lens excels in optical quality and portability.

Why Big Mike's High-Power 420- is better

Price

High-Power lens is significantly cheaper at $139.99.

Zoom Range

High-Power lens has a zoom range of 420mm to 1600mm.

Compatibility

High-Power lens is compatible with a wide range of Canon cameras.

Why Sigma 18- is better

Optical Quality

Sigma lens features superb optical performance.

Portability

Sigma lens is compact and lightweight.

Modern Features

Sigma lens includes in-camera aberration correction.

Overall score

Big Mike's High-Power 420-
75
Sigma 18-
85

Specifications

SpecBig Mike's High-Power 420-Sigma 18-
Focal Length420-1600mm18-50mm
Aperturef/8.3f/2.8
WeightHeavyLight
BrandBig Mike'sSigma
Mount TypeEF-MountE-Mount

Dimension comparison

Big Mike's High-Power 420-Sigma 18-

Overview of the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens

The High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens is priced at $139.99 and designed primarily for Canon cameras. This lens offers exceptional zoom capabilities, allowing photographers to capture images from great distances. Its high power makes it suitable for wildlife and sports photography, where getting close to the subject may not be possible. With a focal length of 420mm to 1600mm, it provides flexibility for various shooting scenarios, making it a compelling choice for Canon users.

Overview of the Sigma 18-50mm F2.8 DC DN Contemporary

The Sigma 18-50mm F2.8 DC DN Contemporary, priced at $587.00, is aimed at Sony E-mount cameras. It offers a versatile focal length of 18mm to 50mm, making it suitable for a wide range of photography styles, from landscapes to portraits. Sigma emphasizes its superb optical quality and compactness, appealing to photographers who want a lightweight option without sacrificing performance. At $587.00, it represents a higher investment compared to the Canon lens, reflecting its advanced features and design.

Zoom Capabilities

The High-Power 420-1600mm lens excels in zoom capabilities with its impressive range of 420mm to 1600mm. This feature allows photographers to capture distant subjects in great detail, making it ideal for wildlife and sports photography. In contrast, the Sigma lens offers a more modest zoom range of 18mm to 50mm, which is versatile but lacks the extreme reach of the Canon lens. The telephoto capability of the Canon lens is approximately 3.2 times greater than that of the Sigma, providing photographers with the ability to capture far-off subjects more effectively.

Optical Quality

While both lenses aim to deliver excellent optical quality, the Sigma lens is specifically noted for its superb optical performance and in-camera aberration correction. This technology enhances image clarity and reduces imperfections, making it a strong contender for photographers who prioritize image quality. The High-Power lens also features a sophisticated f/8.3 aperture, ensuring crisp and clear photos, but its optical performance may not match the advanced technology found in the Sigma lens. Essentially, for those who prioritize optical quality and clarity, the Sigma lens may be the better choice.

Compatibility

Compatibility is a critical factor for photographers when choosing a lens. The High-Power 420-1600mm lens is designed for a wide range of Canon cameras, including models like the EOS 70D, 80D, and 5D. This extensive compatibility allows Canon users to maximize their camera's potential with this telephoto lens. On the other hand, the Sigma lens is tailored for Sony E-mount cameras, which may limit its appeal to users of other brands. If you own a Canon camera, the High-Power lens is the straightforward choice, while Sony users will find the Sigma lens specifically engineered for their needs.

Portability

When it comes to portability, the Sigma 18-50mm lens has the upper hand due to its compact and lightweight design. This makes it an excellent option for photographers who are frequently on the move and require a lens that won’t weigh them down. The High-Power lens, while powerful, is likely bulkier due to its extensive zoom range and construction. For photographers who prioritize ease of transport without compromising on versatility, the Sigma lens is clearly the more portable option.

Price Comparison

In terms of price, the High-Power 420-1600mm lens is significantly more affordable at $139.99, making it about 76% cheaper than the Sigma lens, which retails for $587.00. This substantial price difference may attract budget-conscious photographers looking for high zoom capabilities without breaking the bank. However, the higher price of the Sigma lens reflects its advanced features and superior optical quality, which may justify the investment for serious photographers.

User-Friendliness

User-friendliness is another aspect where the High-Power lens shines, especially for those familiar with manual focus. Its design allows for direct control, which can be advantageous in certain shooting situations. However, the Sigma lens's optical features and compactness may offer a more intuitive experience for those who prefer modern technology and automatic corrections. While both lenses have their merits, the choice may ultimately depend on the photographer's preference for manual versus automatic settings and their comfort level with each type of lens.

Which should you buy?

In conclusion, the decision between the High-Power 420-1600mm lens and the Sigma 18-50mm F2.8 DC DN Contemporary largely hinges on your specific needs as a photographer. If you're seeking an affordable telephoto option that offers extreme zoom capabilities for wildlife or sports photography, the High-Power lens is an excellent choice. Conversely, if you prioritize optical quality, portability, and are willing to invest more for advanced features, the Sigma lens would be a worthwhile addition to your kit. Each lens serves its purpose well, so consider your shooting style and camera compatibility before making a final decision.