Sony FE 1.4x Teleconverter vs Sony FE 400-
Updated July 2026 — Sony FE 1.4x Teleconverter wins on weight, Sony FE 400- wins on price and optics.
The Sony FE 1.4x Teleconverter is a cost-effective option for enhancing existing lenses, while the Sony FE 400-800mm f/6.3-8 G OSS offers advanced capabilities for serious photographers.
Why Sony FE 1.4x Teleconverter is better
Price
Sony FE 1.4x Teleconverter is significantly cheaper.
Portability
Teleconverter is lightweight and easy to carry.
Compatibility
Works with multiple compatible lenses.
Why Sony FE 400- is better
Optical Quality
Superior resolution and bokeh throughout zoom range.
Autofocus
Faster and more precise autofocus for action shots.
Versatility
Wide zoom range from 400mm to 800mm.
Overall score
Specifications
| Spec | Sony FE 1.4x Teleconverter | Sony FE 400- |
|---|---|---|
| Focal Length | 1.4x | 400-800mm |
| Max Aperture | Varies | f/6.3-8 |
| Weight | 0.5 lbs | 4.5 lbs |
| Weather Sealing | Yes | Yes |
| Compatibility | Specific lenses | Standalone |
Dimension comparison
Price Comparison
The Sony FE 1.4x Teleconverter is priced at $598.00, making it significantly more affordable than the Sony FE 400-800mm f/6.3-8 G OSS, which retails for $2,698.00. This represents a price difference of about 78%, with the teleconverter being the less expensive option. For photographers on a budget or those just starting, the teleconverter offers an economical way to extend focal lengths without the hefty investment of a new lens. However, for those who need a dedicated super-telephoto lens, the higher price of the FE 400-800mm reflects its advanced capabilities and versatility.
Optical Performance
The optical performance of the Sony FE 1.4x Teleconverter is impressive, as it maintains full G Master performance while extending your lens’s focal length by 1.4x. This means photographers can achieve high-quality images without compromising on clarity. In contrast, the Sony FE 400-800mm f/6.3-8 G OSS promises high resolution and natural bokeh throughout its zoom range, making it ideal for capturing distant subjects with beautiful background blur. While both products excel in optical quality, the teleconverter enhances existing lenses, while the zoom lens offers a wide focal range designed for specialized shooting needs.
Compatibility
The Sony FE 1.4x Teleconverter is designed specifically for use with compatible lenses such as the SEL70200GM and SEL100400GM, making it a versatile accessory for those who already own these lenses. The teleconverter multiplies the focal length while retaining autofocus performance, which is crucial for action shots. On the other hand, the Sony FE 400-800mm f/6.3-8 G OSS is a standalone lens with a substantial zoom range, covering from 400mm to 800mm. This dedicated lens can be used independently for a variety of shooting situations without needing additional equipment, making it a more comprehensive solution for serious wildlife or sports photographers.
Build Quality
The build quality of the Sony FE 1.4x Teleconverter features a dust and moisture-resistant design, ensuring reliability in challenging outdoor environments. This is a crucial aspect for photographers who often shoot in unpredictable weather conditions. The Sony FE 400-800mm f/6.3-8 G OSS also boasts a robust design, with internal zoom capability that minimizes center-of-gravity shifts, enhancing stability during use. Both products are engineered for durability, but the teleconverter’s lightweight design might appeal to those looking for portability, while the zoom lens emphasizes stability and handling during extended shooting sessions.
Autofocus Performance
The autofocus performance of the Sony FE 1.4x Teleconverter ensures that full AF capabilities are maintained when attached to compatible lenses. This is particularly beneficial for capturing fast-moving subjects in sports or wildlife photography. Conversely, the Sony FE 400-800mm f/6.3-8 G OSS is designed to capture unpredictable subjects with fast and precise autofocus, which is essential for high-action environments. While both products offer excellent autofocus capabilities, the dedicated lens may provide a slight edge in tracking moving subjects due to its purpose-built design.
Versatility
The Sony FE 1.4x Teleconverter is an excellent choice for photographers seeking versatility, as it can be used with multiple compatible lenses, effectively multiplying their reach without needing to carry additional gear. This makes it a practical option for those who prioritize lightweight travel and flexibility. In contrast, the Sony FE 400-800mm f/6.3-8 G OSS is tailored for specific telephoto tasks, offering a wide zoom range within a single lens. For photographers who frequently shoot long distance and require the convenience of a zoom range, this dedicated lens proves to be highly versatile in its own right.
Target Audience
The Sony FE 1.4x Teleconverter is well-suited for photographers who already possess compatible lenses and want to extend their capabilities without a substantial financial commitment. It's ideal for hobbyists or semi-professionals who value optical quality and versatility. On the other hand, the Sony FE 400-800mm f/6.3-8 G OSS targets professional photographers who demand high performance and precision in challenging conditions, such as wildlife and sports photography. The larger investment in the zoom lens reflects its advanced features and specialized design, catering to a different audience with specific needs.
Which should you buy?
In deciding between the Sony FE 1.4x Teleconverter and the Sony FE 400-800mm f/6.3-8 G OSS, your choice will largely depend on your specific photography needs and budget. If you are looking for an economical way to enhance your existing equipment with excellent optical quality, the teleconverter is a solid choice at $598.00. However, if you require a dedicated super-telephoto lens that offers impressive zoom range and fast autofocus capabilities for serious wildlife or sports photography, the Sony FE 400-800mm at $2,698.00 is worth the investment. Ultimately, both products excel in their respective areas, making your decision hinge upon your photographic style and requirements.

