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Description
Sony FE 300mm F/2.8 GM OSS Lens (SEL300F28GM)Sony FE 300mm F 2. 8 GM OSS Lens (SEL300F28GM) Overview: The Sony FE 300mm F 2. 8 GM OSS Lens (SEL300F28GM) is a professional grade telephoto prime lens designed for Sony's full frame E mount cameras. As part of Sony's prestigious G Master series, it delivers an exceptional combination of outstanding optical performance, blazing fast autofocus, and a remarkably lightweight design for its class. With a fast f 2. 8 maximum aperture and advanced
Sony FE 300mm F/2.8 GM OSS Lens (SEL300F28GM)
Overview: The Sony FE 300mm F/2.8 GM OSS Lens (SEL300F28GM) is a professional-grade telephoto prime lens designed for Sony's full-frame E-mount cameras. As part of Sony's prestigious G Master series, it delivers an exceptional combination of outstanding optical performance, blazing-fast autofocus, and a remarkably lightweight design for its class. With a fast f/2.8 maximum aperture and advanced stabilisation, this lens is the go-to choice for sports, wildlife, photojournalism, and any demanding shooting situation where speed and precision are essential.
Key Features:
- 300mm Telephoto Prime Focal Length: The 300mm focal length offers excellent reach for capturing distant subjects with precision, whether on the sports field, in the wild, or at press events. On APS-C bodies, it provides a 450mm equivalent field of view for even greater reach.
- Fast f/2.8 Maximum Aperture: The wide f/2.8 aperture excels in low-light conditions and enables beautiful subject separation with smooth, creamy bokeh — a hallmark of the G Master series, further enhanced by a rounded 11-blade diaphragm.
- G Master Optical Design: An innovative optical design featuring three Super ED (extra-low dispersion) glass elements and one ED glass element effectively suppresses chromatic aberration and colour fringing, delivering breathtaking sharpness and contrast right out to the edges of the frame.
- Nano AR Coating II: Applied to interior lens surfaces, Sony's Nano AR Coating II suppresses reflections that cause flare and ghosting, ensuring exceptional clarity and contrast even in backlit or high-contrast lighting conditions.
- Dual XD Linear Motor Autofocus: Twin XD Linear Motors drive the autofocus system for near-silent, extremely fast, and highly precise AF — ideal for tracking fast-moving subjects in both stills and video. AF performance is maintained even when used with Sony's 1.4x and 2x teleconverters.
- Optical SteadyShot (OSS) Image Stabilisation: Built-in OSS helps counteract camera shake during handheld shooting, delivering sharp results even at longer shutter speeds or in challenging light.
- Lightest in Its Class: Weighing just 1,470g (51.9 oz) excluding the tripod mount, the SEL300F28GM is the lightest large-aperture 300mm f/2.8 lens in its class — approximately 50% lighter and 43% smaller than the FE 400mm f/2.8 GM OSS. Weight distribution is optimised for ideal balance, reducing fatigue during extended handheld sessions.
- Teleconverter Compatible: Compatible with Sony's SEL14TC (1.4x) and SEL20TC (2x) teleconverters, extending reach to 420mm or 600mm respectively while retaining fast, accurate autofocus performance.
- Drop-In Filter Support: The lens accepts standard 40.5mm drop-in ND filters and other filters, as well as Sony's own VF-DCPL1 circular polariser, via its rear-mounted filter slot.
- Weather-Sealed Construction: A dust- and moisture-resistant design built with durable magnesium alloy internal components ensures reliable performance in demanding outdoor environments.
- Fluorine Front Element Coating: Repels water, oil, and other contaminants, keeping the front element clean and making it easier to wipe away any marks or fingerprints.
Specifications:
- Focal Length: 300mm
- Maximum Aperture: f/2.8
- Minimum Aperture: f/22
- Lens Mount: Sony E-mount
- Format Compatibility: Full-frame and APS-C (450mm equivalent on APS-C)
- Optical Design: Super ED x3, ED x1, Nano AR Coating II; 11-blade rounded diaphragm
- Minimum Focus Distance: 2.0m (6.6 ft)
- Maximum Magnification: 0.13x
- Image Stabilisation: Optical SteadyShot (OSS)
- Filter: Drop-in, 40.5mm
- Dimensions: Approx. 128 x 265mm (5.0 x 10.4 in)
- Weight: 1,470g (51.9 oz) (excluding tripod mount)
Included in the Box:
- Sony FE 300mm F/2.8 GM OSS Lens (SEL300F28GM)
- Lens hood (ALC-SH175)
- Front lens cap
- Rear lens cap (ALC-R1EM)
- Soft carrying case
- Tripod mount
- Lens strap
- Drop-in filter (normal)
Summary: The Sony FE 300mm F/2.8 GM OSS is a flagship telephoto prime that sets a new benchmark for speed, sharpness, and portability in its class. Whether you're shooting professional sport, wildlife in the field, or fast-moving news events, its combination of G Master optics, rapid dual-motor autofocus, and class-leading lightweight design makes it one of the most capable and practical super-telephoto lenses available for Sony E-mount shooters.
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4.4 ★★★★★
Based on 1797 reviews
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Product Reviews
★★★★★ 5
Great watch
Color: Black/Silver-Tone
Great watch, with many features, specially for those that travel in various time zones.
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Reviewed in the United States on May 7, 2026
★★★★★ 4
Typical Ironman quality
Color: Black/Silver-Tone
This is my fourth Timex Ironman watch. I own many watches, and prefer the Ironman for casual wear and sporting activities as well as swimming and snorkeling. I decided to replace an earlier model with this one rather than pay to change the battery.
The Ironman has changed very little over the years since its introduction in the '80s, with the exception of cosmetic improvememnts and a larger display. I selected the "oversize" model as I was looking for a little more heft to this model. This watch fits the bill, not as chunky as my G-Shock. A pleasant surprise was the weight of the watch. This model is lightweight, another advantage over the G. It's larger than the typical Ironman model, but about the same weight. The band lacks the stiffness of some other Timex and Casio models, and is quite comfortable.
Typical Ironman functions are unchanged, and the ability to "hide" various functions makes operation of the watch more efficient. There are three time zones, useful when traveling, as well as the usual chronograph/timer and alarm functions.
I haven't worn the watch in the pool or ocean yet, but if experience is any guide, I expect no problems. I've never had an Ironman leak, whether during water sports or snorkeling.
These are great watches for the money. I prefer 200 meter water resistance for this type of watch, but Timex has yet to build an Ironman 200m that doesn't overwhelm my wrist in weight and size. I'm not a big guy, and they are simply too large for my wrist.
Looking forward to years of service with this watch. Definitely a good timepiece for the price.
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Reviewed in the United States on May 6, 2013
★★★★★ 5
Will not be disappointed
Color: Black/Blue
Keeping in mind that I received this item yesterday (2/24/16), I absolutely love this watch. The reason I have so much confidence with this watch is because I've owned one other Timex similar to this one, and it served me extremely well and is still able to do so. First off, this watch is certainly aesthetically pleasing. The blue color around the face of the watch and outline in the band, goes really well with the black frame. It's just an overall nice looking watch. More importantly, the quality seems great. As I mentioned, I've owned a Timex expedition, which I've had for more than 2 years, and it's still working perfectly fine. The watch seems like it's put together very well and there's no loose or flimsy parts. One complaint that many people seem to have with Timex is the quality of their band. Unfortunately I'd have to agree, since the band on my other Timex that's still working like the first day I got it, cracked and broke and is only being held together by the nylon fabric on the other side of the band. You're not going to have that problem with this watch. It's a full nylon band with Velcro adjustment, for precise fitting. it feels extremely comfortable and you won't need to worry about the band cracking (although I'm sure there will be certain defects in a mass produced bunch). I will use this watch for work and running, and rarely plan on taking it off. Just to give you an idea, I also have a garmin gps watch that I love and obviously has more functions than this watch. However, the second I received this watch, I slapped it on and put my garmin to the side. This watch also looks amazing when you wear it. I'll update this feedback as needed, but I'm confident this watch will serve me for years to come, just as my other one has.
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Reviewed in the United States on February 25, 2016
★★★★★ 5
Greatest watch I've ever had, but changing batteries is near impossible
Color: Black/Blue
This is the 3rd time I've bought this watch. Same brand, same or very similar model. It has a chronometer, timer, alarm, and of course the clock. It has something I think is for "occasions" but I don't know what it does and don't really care about it. The watch is durable. It uses battery power efficiently. The indiglo is second to none. I just really really like this watch.
Having said all that, if you want to change the batteries, good luck, you'll need it. Once you manage to get the backing off of it and open it up (which is a little tricky in itself), it's like a comedy routine where you see some stooge open an electrical device and a buncha parts and springs go flying everywhere. And of course, they are so tiny, you'll never find them once they fly out. That was the exact scenario I found myself in the last time I tried to change the battery. It made me so mad I actually bought another brand of watch that I thoroughly researched. But that watch DIDN'T use battery power efficiently, and it had a host of other minor problems that added up to the conclusion that it was not nearly as great as this Timex. So, for the 3rd time, I found myself buying this Timex watch.
So it's a wonderful watch in every way except longevity because changing the batteries has historically been a nightmare for me.
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Reviewed in the United States on December 4, 2019
★★★★★ 5
A better Ironman design
Color: Black/Blue
I've been a fan of Timex watches for most of my life, paying about $30 for one in the 1960s, and that hasn't changed at all in 2010 because I'm still paying about $30 for my Timex watches. It is a rare case indeed when the quality of a product continually improves over several decades while the price remains the same. And as John Cameron Swayze would say in those live ads during the early years of TV, "Timex takes a lickin and keeps on tickin".
The MEGA deserves a good review after I have been using it for a while. You might also see it advertized as the "Oversize" because most distinctive about this design is its size, so tagging it with the name MEGA is entirely justified. It is massive in comparison to most of the other Ironman series of watches, and what seemed at first to be just another unnecessary Ironman 30 Lap design has turned out to be one of my favorites for all-around wearing. This new design keeps the clockworks of the standard size 30 Lap Ironman watches, it counts up and down, programs the same, has several alarms, and of course, it has the Indigo night light that works so well.
This is one of five different versions of the Mega available in the USA, and the only one with a Fastwrap Velcro wristband with blue striping and a matching blue bezel. Velcro wristbands are a favorite among many athletes and when it wears out, it can be replaced with either an identical factory band or one that is made of urethane rubber.
Overall, the Mega is a good choice for runners in need of a new 30 lap Ironman who can appreciate having a watch that is distinctively larger and what I would consider to be much better in appearances over the others of standard or mid size Ironman dimensions.
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Reviewed in the United States on November 17, 2010
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