Sony FE 2.0x TC vs Viltrox 2.0x TC
One of the most niche yet exciting recent releases for photographers seeking extra reach is the Viltrox 2.0X Teleconverter for Sony E-mount. This new contender directly challenges the established Sony FE 2.0x TC, but it brings more to the table than just a lower price tag. Most notably, it breaks compatibility barriers by working with select third-party lenses - such as the Sigma 300-600mm f4 DG OS Sports and Sigma 500mm f5.6 DG DN OS Sports - that natively support TCs but were previously limited on Sony bodies. This opens up a world of opportunities within the E-mount universe.
Viltrox 2.0X TC on Sony A7R V and Sony FE 300mm F2.8 OSS GM
However, the 'gold standard' pairing for a 2.0x TC in the Sony ecosystem is undoubtedly the Sony FE 300mm f2.8 GM OSS . When paired with a 2x extender, this lens transforms into a 600mm f/5.6 powerhouse, which makes this a very popuar combo among bird and wildlife photographers.
Sony FE 300mm F2.8 GM with the CAMDEC Lens Cap and Hood
Also read: New CamDec Lens Hood Line for Sony FE 300mm 2.8 GM OSS: 45mm Shortie up to 146mm Big Boy
Sharpness and Resolution: Side-by-Side Comparison
Test Chart Center and Corner Sections
To see how the Viltrox holds up against the Sony original, we put them to the test in a controlled studio environment. In order to ensure a fair fight, we tested both teleconverters on a tripod using the Sony FE 300mm f/2.8 GM OSS, and the 60MP Sony Alpha A7R V with identical camera settings. Below are the 200% magnified crop comparisons to highlight the fine details.
*click on the images for a larger version
Performance at f/5.6 (Wide Open)
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F5.6 Center
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F5.6 Corner
At the maximum aperture (where most photographers will use this 600mm equivalent combo), the results are surprising. The Viltrox displays slightly better contrast than the Sony, while the raw resolution remains virtually indistinguishable.
Performance at f/8.0
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F8 Center
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F8 Corner
Stopping down slightly levels the playing field. At f/8, the results between the Viltrox and Sony are nearly identical, with both maintaining impressive clarity across the frame.
Performance at f/11
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F11 Center
Sony FE 2.0x TC vs Viltrox 2.0x TC on Sony FE 300mm F2.8 OSS GM - F11Corner
At f/11, the Sony FE 2.0x TC edges out a slight lead in fine detail resolution. However, the difference is minimal and likely falls within testing tolerances.
The Verdict: A New King of Value?
In our controlled environment, the Viltrox 2.0x TC performed admirably, matching and occasionally exceeding the contrast of its Sony counterpart. While the Sony holds a microscopic lead at smaller apertures like f/11, the Viltrox’s performance at f/5.6 makes it a formidable tool for sports and wildlife photographers.
When you factor in the price - $280 for the Viltrox versus $598 for the Sony- it’s hard not to declare the Viltrox a winner for those on a budget. You are getting nearly identical optical quality for less than half the cost.
Viltrox Teleconverter 2.0X Sony E - What is in the Box
It is important to remember that image quality is only one piece of the puzzle. Autofocus speed and accuracy are critical when using extenders, especially for fast-moving subjects. While AF was outside the scope of this specific resolution test, we will be diving deep into a head-to-head autofocus comparison very soon. Stay tuned!
Price and Availability
The Viltrox 2.0X Teleconverter is currently available for $280, while the Sony FE 2.0x TC typically retails for $598. Both can be found at major imaging retailers and online stores.
