Carrying a 600mm lens usually means dealing with a heavy camera bag, monopod or tripod. Sony is trying to change that with its new FE 600mm F6.3 GM OSS, which weighs just around 995 grams.

Sony India has launched two new G Master super-telephoto prime lenses for Alpha full-frame mirrorless cameras the Sony FE 400mm F4.5 GM OSS and Sony FE 600mm F6.3 GM OSS.

According to Sony, these are the world’s lightest lenses in their respective classes. Both are designed mainly for photographers shooting birds, wildlife, sports and other distant subjects, where a lightweight setup can make a big difference.

Here is a closer look at the Sony 400mm lens price in India, Sony 600mm lens price in India, specifications and key features.

Sony 400mm and 600mm Lens Price in India

Sony 400mm and 600mm G Master Lenses Launched in India
Sony 400mm and 600mm G Master Lenses Launched in India

Both new Sony G Master lenses went on sale in India from 24 September 2026. They are available through Sony Centers, Alpha Flagship stores, authorised dealers, major electronics retailers and online platforms.

ModelPrice in IndiaAvailability
Sony FE 400mm F4.5 GM OSSRs 3,10,990From 24 September 2026
Sony FE 600mm F6.3 GM OSSRs 4,28,990From 24 September 2026

You can check the latest price of the Sony FE 400mm F4.5 GM OSS and see current offers on the Sony FE 600mm F6.3 GM OSS on Amazon India.

Sony FE 400mm F4.5 GM vs FE 600mm F6.3 GM Specs

SpecificationFE 400mm F4.5 GM OSSFE 600mm F6.3 GM OSS
Focal length400mm600mm
Maximum aperturef/4.5f/6.3
Weight without tripod mountApprox. 994gApprox. 995g
Maximum diameterApprox. 108mmApprox. 108mm
LengthApprox. 242mmApprox. 263mm
Special glass3 Super ED + 1 ED3 Super ED + 1 ED
Aperture blades11, circular11, circular
Autofocus2 XD Linear Motors2 XD Linear Motors
Image stabilisationOptical SteadyShotOptical SteadyShot
With 1.4x teleconverter560mm840mm
With 2x teleconverter800mm1200mm
ProtectionDust and moisture resistant designDust and moisture resistant design
MountSony E-mount, full-frameSony E-mount, full-frame

What Do Prime, Super-Telephoto, GM and OSS Mean?

A prime lens comes with a fixed focal length, so there is no zoom. Prime lenses are often designed to deliver excellent sharpness while keeping the optical design relatively focused.

Super-telephoto generally refers to lenses with very long focal lengths, typically 300mm and above. These lenses are useful when the subject is far away for example, a bird sitting across a lake or a player on the other side of a sports ground.

The f-number, such as f/4.5 or f/6.3, tells you the lens’s maximum aperture. A lower number means the lens can let in more light.

G Master, or GM, is Sony’s premium lens lineup, while OSS stands for Optical SteadyShot, Sony’s in-lens image stabilisation technology.

sony G Master super telephoto prime lenses
sony G Master super telephoto prime lenses

Sony 600mm Lens Weight Is the Big Highlight

The biggest talking point here is undoubtedly the weight.

Both new lenses come in at under 1 kg, which is impressive considering their focal lengths.

Here is how they compare with some of Sony’s other long lenses.

LensApprox. Weight
Sony FE 400mm F4.5 GM OSS994g
Sony FE 600mm F6.3 GM OSS995g
Sony FE 200-600mm F5.6-6.3 G OSS2,115g
Sony FE 400mm F2.8 GM OSS2,895g
Sony FE 600mm F4 GM OSS3,040g

The new 400mm and 600mm primes are dramatically lighter than Sony’s faster 400mm F2.8 GM and 600mm F4 GM lenses.

Of course, the trade-off is aperture. The more expensive F2.8 and F4 lenses can gather more light, but the new lenses should be far easier to carry and use handheld for longer periods.

Sony has also moved the centre of gravity closer to the camera body. This should make the camera and lens combination feel better balanced, especially when tracking birds in flight or following fast-moving athletes.

The 400mm measures approximately 242mm long, while the 600mm is around 263mm. Both have a maximum diameter of approximately 108mm.

That compact size should also make them easier to carry in a regular camera backpack during wildlife trips and long outdoor shoots.

G Master Optics With Super ED Glass

Super-telephoto lenses can sometimes produce chromatic aberration, which appears as unwanted colour fringes around high-contrast areas.

Sony is using three Super ED elements and one ED element inside each of these lenses to reduce this effect.

ED stands for Extra-low Dispersion. These specialised glass elements help control how different colours of light pass through the lens, improving clarity and reducing colour fringing.

Sony has also added Nano AR Coating II, which is designed to reduce flare and ghosting when shooting in difficult lighting conditions, including backlit scenes.

Both lenses use an 11-blade circular aperture. This should help produce smoother and more rounded background blur or bokeh, making the subject stand out clearly from the background.

Fast Autofocus for Wildlife and Sports

Both lenses use two XD Linear Motors for autofocus.

These motors are designed to move the focusing elements quickly and quietly, which is important when tracking unpredictable subjects such as birds, animals and athletes.

The lenses also support the Sony Alpha 9 III and its high-speed shooting capabilities of up to 120fps with continuous AF and AE tracking.

Photographers using the Sony Alpha 9 III full-frame camera can therefore pair it with these lenses for high-speed sports and wildlife photography.

Optical Stabilisation and Video Features

Both lenses feature built-in Optical SteadyShot image stabilisation to reduce visible camera shake while shooting handheld.

On compatible Sony cameras, the lenses can also work with the camera’s Active Mode stabilisation and coordinated stabilisation controls.

Sony has included breathing compensation support as well.

Focus breathing happens when the framing changes slightly while shifting focus between subjects. Compatible Sony cameras can compensate for this effect, which can be useful when recording video.

Plenty of Physical Controls

Sony has placed four customisable focus hold buttons around the lens barrel. This means a button should remain within easy reach whether you are shooting horizontally or vertically.

Other controls include a function ring, focus range limiter, Full-time DMF switch, focus mode switch and image stabilisation mode switch.

The focus range limiter can prevent the lens from searching through its entire focusing range when the subject is already known to be far away. This can help autofocus respond faster.

DMF or Direct Manual Focus allows photographers to make manual focus adjustments even when autofocus is being used.

Teleconverters Push the 600mm to 1200mm

Both lenses support Sony’s 1.4x and 2x teleconverters, giving photographers even more reach without changing lenses.

Using the Sony 1.4x teleconverter (SEL14TC), the focal lengths become:

  • 400mm → 560mm
  • 600mm → 840mm

With the Sony 2x teleconverter (SEL20TC), they become:

  • 400mm → 800mm
  • 600mm → 1200mm

That 1200mm reach could be particularly useful for bird photography and subjects that are difficult to approach.

Dust and Moisture Resistant Design

Both lenses feature a dust and moisture resistant design, making them better suited to outdoor photography.

Sony has also applied a fluorine coating to the front element. It helps prevent water, dirt, oil and fingerprints from sticking to the glass and makes cleaning easier.

However, dust and moisture resistance does not mean the lenses are completely waterproof, so additional protection is still sensible when shooting in heavy rain.

Sony 400mm F4.5 or 600mm F6.3: Which One Makes More Sense?

The Sony FE 400mm F4.5 GM OSS offers a brighter aperture and a slightly shorter focal length. It should work well for wildlife, sports and situations where available light is limited.

Add the 1.4x or 2x teleconverter and it can also reach 560mm or 800mm.

The Sony FE 600mm F6.3 GM OSS is more focused on maximum reach. It could be particularly attractive for bird photography, where getting physically closer to the subject is often difficult.

Interestingly, the 600mm weighs almost exactly the same as the 400mm despite offering significantly more reach.

Photographers who prefer the flexibility of a zoom can also consider the Sony FE 200-600mm G OSS super-telephoto zoom. It covers a much wider focal range, although at approximately 2.1 kg it is more than twice as heavy as either of these new primes.

Sony Alpha Community Benefits

Customers who register these lenses with Sony’s Alpha Community can get an additional year of warranty over the standard two-year warranty, taking the total coverage to three years.

Registered members can also access free workshops with Sony experts, get 50% off their first Sony photo tour and 25% off subsequent tours, along with opportunities to participate in photography contests.

The Alpha Community app is available for Android and iOS.

Final Thoughts

The most interesting part of Sony’s new 400mm F4.5 GM and 600mm F6.3 GM lenses is not simply their focal length it is how light Sony has managed to make them.

A 600mm full-frame G Master prime weighing around 995 grams makes handheld shooting much more practical, especially for bird and wildlife photographers who spend hours walking with their gear.

At Rs 3,10,990, the Sony FE 400mm F4.5 GM OSS is certainly not cheap, while the Sony FE 600mm F6.3 GM OSS costs Rs 4,28,990. These are specialist lenses aimed at serious photographers.

But for someone who wants long reach without carrying a 2-3 kg lens throughout the day, these two new G Master lenses offer a very interesting option.

By Sunil V