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Sony FE 400mm f/2.8 G Master OSS Telephoto Lens
The Sony 400mm G Master Telephoto lens is full of innovative technology, with no expense spared. Prepare for incredible autofocus performance thanks to XD Linear Motors, with G Master glass and f/2.8 aperture for optimal results
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We Love
- XD (extreme dynamic) Linear Motors deliver highly proficient focus and tracking AF
- Outstanding resolution right out to the edges of the image
- One of the lightest super telephoto primes in its class at 2,895g
- Full-time DMF and comprehensive lens barrel controls for quick adjustments on the fly
- A right aperture together with stabilisation provide reliable low light performance

Sony FE 400mm f/2.8 GM OSS Lens Summary
Sony employed their most advanced technology to ensure the FE 400mm f/2.8 GM OSS provides class leading performance to professional users. The bright aperture lends itself to indoor and outdoor work, which excels at low light particularly when coupled with the optical stabilisation system. Image quality is rendered in high resolution with sharpness apparent across the entire frame and soft out of focus bokeh is rendered by an 11-bladed round aperture.
Weighing in at just 2,895g the 400mm f/2.8 GM is amongst the lightest lenses in its class, although users will often opt for a monopod for extended shooting times. Apply a 1.4x or 2.0x teleconverter and you can also handhold at up to 800mm focal length on a full frame Sony camera.
Key features
- Outstanding G Master resolution and bokeh
- XD (extreme dynamic) Linear Motor technology
- 5x improvement in tracking moving subjects
- Maximises performance from high-end Sony Mirrorless Camera Bodies when capturing dynamic sports or wildlife
- Spherical aberration is carefully controlled during design and manufacture to achieve optimum bokeh quality
- World's lightest in its class
- Dust and moisture resistant
- Durable magnesium alloy exterior
- Florine coating to wipe dirt and fingerprints away
- Tripod mount
- Manual focus override by using focus ring even when shooting in AF-C mode
- New Mode ‘3' provides optimum stabilisation for dynamic sports action
- Four focus hold buttons and a focus ring with Linear Response MF further enhance versatility
Sony FE 400mm f/2.8 GM OSS Lens features in detail
- Mount: Sony E-mount
- Format: 35mm Full Frame
- Focal-length (mm): 400
- 35Mm Equivalent Focal-length (APS-C): 600
- Lens Groups / Elements: 17-23 *Including One Filter
- Angle Of View (35mm): 6°10'
- Angle Of View (APS-C: 4°10'1
- Maximum Aperture (F): 2.8
- Minimum Aperture (F): 22
- Aperture Blades: 11
- Circular Aperture: Yes
- Minimum Focus Distance: 2.7 M (8.86 Ft)
- Maximum Magnification Ratio (X): 0.16
- Filter Diameter (Mm): 40.5 (Slot-in)
- Image Stabilisation (Steadyshot): Optical Steadyshot
- Teleconverter Compatibility (X1.4): SSEL14Tc
- Teleconverter Compatibility (X2.0): SEL20Tc
- Hood Type: Round Shape
Full Details
Innovative G Master F2.8 super telephoto
Sony’s most advanced lens technologies have been unsparingly applied in this large-aperture super telephoto lens, achieving extraordinary speed, outstanding G Master resolution and bokeh, plus professional control and reliability. Moreover, the SEL400F28GM is the lightest super telephoto lens in its class1, providing unparalleled handheld shooting freedom.
Speed that maximises body performance
New XD (extreme dynamic) Linear Motors deliver higher thrust than conventional types, achieving up to a 5x improvement2 in moving-subject tracking performance with current and future camera bodies. Two of these new motors and newly developed algorithms quietly drive the lens’s large focus lens group faster and more precisely than ever before. The full speed performance of advanced camera bodies can be applied to capturing dynamic sports or wildlife subjects.
Stunning G Master resolution and bokeh
Extremely high design standards ensure outstanding resolution right out to the image edges. Three fluorite elements minimise chromatic aberration. Spherical aberration is carefully controlled during design and manufacture to achieve the highest possible bokeh quality. Optional high-performance 1.4x and 2.0x tele-converters are supported3, providing outstanding resolution and contrast even at 800mm.
The world's lightest at just 2,895 grams (102.2 ounces)
An innovative optical design that includes three fluorite elements reduces the number of elements at the front of the lens barrel for a low weight of 2,895 grams (102.2 ounces). Durable magnesium alloy components also contribute to reduced weight. Portability and handling are outstanding, and ideal balance affords agile, easy operation whether shooting handheld or on a monopod.
Durability and reliability for challenging conditions
Dust and moisture resistant design4 provides the reliability needed for outdoor use in harsh conditions. A durable magnesium alloy used for the lens barrel exterior, tripod mount, and interior barrel components achieves tough durability while minimising overall weight. The front lens element features a fluorine coating that helps to keep it clean while making it easier to wipe dirt and fingerprints away.
Features for professional shooting needs
Full-time DMF allows manual focus to be engaged simply by rotating the focus ring, even while shooting in AF-C mode. Optical image stabilisation is built-in, and a new Mode 35 setting features an advanced algorithm that provides optimum stabilisation for dynamic sports action while also making framing easier. Four focus hold buttons and a focus ring with Linear Response MF further enhance versatility.
Lens Configuration
G Master series lenses take imaging and expression to previously unattainable levels with a stunning blend of extremely high resolution and softly dissolving background bokeh
[1] Fluorite lens [2] ED glass
MTF (Modulation Transfer Function) describes how well a lens can reproduce fine details, measured as the degree of contrast achieved between finely spaced lines.
[1] Contrast (%) [2] Distance from optical centre of lens (mm) [3] Max. aperture [4] F8 aperture [5] Spatial frequency [6] 10 line pairs / mm [7] 30 line pairs / mm [8] R: Radial values T: Tangential values
Lens Controls
1. Focusing ring / 2. Function ring / 3. Tripod collar ring / 4. Focus-hold button / 5. Drop in filter holder / 6. Strap eyelet / 7. Tripod collar ring-clicking select switch / 8. Security slot (able to attach a security wire)
Lens Controls
1. Focus-mode switch / 2. Full-time DMF switch / 3. Focus-range limiter / 4. Function ring select switch / 5. SET button / 6. Shake compensation switch / 7. Shake compensation mode switch/ 8. BEEP switch
Offer Category: Camera Lenses |
Offer Product Type: Sony Lenses E Mount |
Autofocus: Yes |
Constant Aperture: Yes |
Diameter (mm): 158 |
Length (mm): 359 |
Weight (g): 19595 |
Distance scale: Yes |
Elements: 23 |
Focus distance limiter: Yes |
Focal length: 400 mm |
Full time manual: Yes |
Groups: 17 |
Hood supplied: Yes |
Maximum focal length: 400 |
Maximum magnification: 0.16 |
Maximum aperture (number): 2.8 |
Minimum focal length: 400 |
Lens Minimum focus distance (m): 2.7 |
Number of diaphragm blades: 11 |
Special elements / coatings: 1 fluorite and 3 ED elements, Nano AR and fluorine coatings |
Tripod collar: Yes |
Best For Astro: Yes |
Best For Wildlife and Sport: Yes |
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Simply add the items you love to your basket. Once you are at the checkout select the finance option that suits you and choose Omni. The quick application form is simple and should take no more than a couple of minutes to complete and you will receive a decision instantly. Easy!
Use our finance calculator to check the impact of various loan values, terms and interest rates on the total amount you need to pay and the monthly repayments.
Representative example:
Buy a £1,200.00 camera and pay a 10% deposit of £120. You'll borrow £1,080 over 24 months with an annual interest rate of 14.9% (fixed) with a first payment of £52.04 followed by 23 monthly repayments of £51.83. The total amount payable will be £1,244.13 14.9% APR Representative.
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- Are at least 18 years old
- Are in regular full or part-time employment (minimum 1 hour per week or £10,000 income per annum), unless you are retired and receiving a private or company pension, or you are in receipt of disability living allowance
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- Have a UK bank account capable of accepting Direct Debits
- Have a good credit history with no late payments, Debt Relief Orders, County Court Judgments or bankruptcies.

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Our Verdict
There was a lot of anticipation for Sony to produce a professional prime super telephoto lens to compliment their range and the 400mm f/2.8 G Master does not disappoint. Designed to work in conjunction with top-end high speed mirrorless cameras such as the Alpha 1 and a9 II users will find subject tracking using this lens is 5x more effective. The design of the lens has been refined to provide exceptional image quality along with similarly excellent hand holding performance.
The G Master lenses all share similar traits including glass and lens elements which are painstakingly constructed to render optimal sharpness and portray beautifully smooth bokeh filled backgrounds. This is without question the ultimate option for users who need the fastest and most reliable bright aperture super telephoto lens designed for sports, action and wildlife photography.
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