--- product_id: 285443528 title: "Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens" brand: "sony" price: "฿54258" currency: THB in_stock: true category: "Sony" url: https://www.desertcart.co.th/products/285443528-sony-sel-20f28-e-mount-20mm-f2-8-prime-fixed store_origin: TH region: Thailand --- # 0.2m minimum focus distance for close-ups F2.8 max aperture for stunning bokeh 20mm wide-angle focal length Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens **Brand:** sony **Price:** ฿54258 **Availability:** ✅ In Stock ## Summary > 📸 Elevate your frame with Sony’s sleek 20mm prime—where portability meets pro-level clarity! ## Quick Answers - **What is this?** Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens by sony - **How much does it cost?** ฿54258 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/285443528-sony-sel-20f28-e-mount-20mm-f2-8-prime-fixed) ## Best For - sony enthusiasts ## Why This Product - Trusted sony brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bright F2.8 Aperture:** Create creamy, professional-grade bokeh that makes your subject pop in any lighting. - • **Fast, Quiet Autofocus:** Rear-group focusing ensures speedy, silent AF and no front element rotation—ideal for polarizing filters. - • **Compact Pancake Design:** Weighing just 69g and only 20.4mm thick, it’s the ultimate travel-friendly lens for on-the-go pros. - • **Ultra-Wide 20mm Perspective:** Capture expansive scenes with a 70° angle of view—perfect for landscapes and urban shots. - • **Advanced Aspherical Elements:** Enjoy razor-sharp images edge-to-edge with reduced distortion and superior contrast. ## Overview The Sony SEL-20F28 is a lightweight, ultra-compact 20mm prime lens designed for E-mount APS-C cameras. Featuring a bright F2.8 aperture and advanced aspherical elements, it delivers exceptional sharpness, minimal distortion, and beautiful bokeh. Its pancake design and fast autofocus make it a versatile choice for professionals seeking high-quality wide-angle shots without bulk. ## Description 20mm F2.8 Prime Lens Not only will the 20mm (30mm in 35mm full-frame format) focal length and F2.8 maximum aperture appeal to experienced photographers, but the outstanding resolution of this lens will satisfy their most stringent image quality requirements as well. Three aspheric elements help to achieve superb contrast and resolution right out to the image edges, while simultaneously enabling a compact 20.4 mm-thick pancake design that makes for a portable combination with compact E-mount cameras. When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result. Aspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. Advanced Aspherical (AA) elements are an evolved variant, featuring an extremely high thickness ratio between the center and periphery. AA elements are exceedingly difficult to produce, relying on the most advanced molding technology to consistently and precisely achieve the required shape and surface accuracy, resulting in significantly improved image accuracy and quality. Only the rear groups of the optical system move to focus the lens, which allows for speedy AF operation and a shorter minimum focusing distance. Since the front of the lens does not rotate, operability is improved when shooting with a polarizing filter attached. 2013 Sony Electronics All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographic and photographic errors. Features and specifications are subject to change without notice. Sony, BIONZ, BRAVIA, BRAVIA Sync, Cyber-shot, Exmor, InfoLITHIUM, Memory Stick PRO Duo, Memory Stick Duo, the Memory Stick logo, Optical SteadyShot, Remote Commander, Smile Shutter, Stamina, SteadyShot, Theatre Sync, TruBlack, and Xtra Fine LCD are trademarks of Sony. Microsoft, Windows, and Windows Vista are trademarks of Microsoft Corporation. Mac OS and iMovie are trademarks of Apple Computers, HDMI is a trademark of HDMI Licensing . All other trademarks are trademarks of their respective owners. ## Features - Superior Image Quality - Minimum Focus Distance : 0.66 feet (0.2 m), Maximum Magnification ratio : 0.12x - Focal Length- 20 mm, Compact Length; Lens not Zoomable - Superb value and performance. Angle of View (APS-C) -70°. Maximum aperture (F) - 2.8. 35 mm equivalent focal length (APS-C) - 11.82 inch - Broaden your view with a wide angle: From a vast cliff to a stretching sandy beach, fit everything in with a 20 mm wide angle. Angle of View (APS-C): 70° ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00B20OYUO | | Best Sellers Rank | #71,668 in Electronics ( See Top 100 in Electronics ) #417 in SLR Camera Lenses | | Brand | Sony | | Built-In Media | Hood (ALC-SH113), Lens front cap, Lens rear cap, Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens | | Camera Lens | 20 millimeters | | Color | Black | | Compatible Camera Models | Sony Alpha series (E-mount) | | Compatible Camera Mount | Sony E | | Compatible Devices | Sony Cameras, Sony Digital SLRs | | Customer Reviews | 4.3 4.3 out of 5 stars (296) | | Exposure Control Type | Automatic | | Focal Length Description | 20mm | | Focus Type | Auto Focus | | Global Trade Identification Number | 00027242865976 | | Image stabilization | Optical | | Iso Range | 100-6400 | | Item Weight | 69 Grams | | Lens | Wide Angle | | Lens Coating Description | Fluorine Coating | | Lens Design | Prime | | Lens Fixed Focal Length | 20 Millimeters | | Lens Mount | Sony E | | Light Sensitivity | ISO 100-6400 | | Manufacturer | Sony | | Manufacturer Part Number | SEL20F28 | | Maximum Aperture | 2.8 Millimeters | | Maximum Focal Length | 20 Millimeters | | Maximum Shutter Speed | 1/30 sec | | Media Type | ProductImage, EnhancedContent | | Minimum Aperture | 22.0 | | Minimum Focal Length | 20 Millimeters | | Model Name | SEL20F28 | | Model Number | SEL20F28 | | Number of Diaphragm Blades | 7 | | Photo Filter Size | 49 Millimeters | | Real Angle Of View | 70 Degrees | | UPC | 027242865976 | | Viewfinder Type | Electronic viewfinder | | Water Resistance Level | Not Water Resistant | | Zoom Ratio | 1 | ## Product Details - **Brand:** Sony - **Camera lens description:** 20 millimeters - **Compatible mountings:** Sony E - **Focal length description:** 20mm - **Lens type:** Wide Angle ## Images ![Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Image 1](https://m.media-amazon.com/images/I/413Sps3Tv9L.jpg) ![Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Image 2](https://m.media-amazon.com/images/I/61aQa+hymDL.jpg) ![Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Image 3](https://m.media-amazon.com/images/I/81h1ZEvt+GL.jpg) ![Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Image 4](https://m.media-amazon.com/images/I/31-uJ8PFuLL.jpg) ![Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Image 5](https://m.media-amazon.com/images/I/913+bV+z8RL.jpg) ## Available Options This product comes in different **Configuration, Color, Style** options. ## Questions & Answers **Q: Why did sony omit oss image stability on this lens? with oss the speed can be reduced on a kit lenses to accomplish 20mm @ f2.8.** A: I think you may be misunderstanding the benefits of OSS on a wide-angle prime lens. The wider the angle, the less the effect of camera shake on the image. OSS (and other stabilizing hardware/software) are most beneficial for long and/or zoom lenses. So, in other words, adding the cost, size, weight and complexity of the OSS hardware to the 20mm lens is not needed and thus adding it would far outweigh any advantages. I've taken hundreds of pictures with my 20mm (and the two adapters which make its field of view even wider) in all kinds of lighting (bright to dim) and I've never had reason to worry about camera shake. There's a technical reason why which I'll try to explain below. I have to ask...do you own a Sony camera that uses E-mount lenses? Do you own this lens? Have you ever taken photos with it? And finally, why do you ask the question? Your comment that "with oss the speed can be reduced on a kit lenses to accomplish 20mm @ f2.8" really makes no sense at all. The 20mm is not a "kit lens" and reducing the shutter speed (longer exposure) does not "accomplish" an aperture of f2.8. The bigger the aperture, the more the shutter speed can be increased (for a shorter exposure to allow the same amount of light to reach the sensor). I'm pointing out all this information because I felt the need to illustrate that your original question, and BoJo's answer, are both misleading. I hope the time I've taken to make these comments is useful to you or someone else. The SEL-20F28 is a fine prime wide-angle lens and due to that wide angle, it doesn't need OSS. There was no "omission" of a feature due to cost; there was no need for the feature. Perhaps that's the simplest answer to your question.If you look at the full line of Sony E-mount lenses, you'll see that the OSS feature is not included in the two primes below 30mm (the SEL-20F2.8 and the macro lens SEL-30M35); above that prime range and in ALL zoom lenses (which have much longer reach and narrower field of view the OSS feature is included. For example, in the prime lenses, the SEL-50F18 and SEL-35F1.8 have OSS, All the zoom lenses (e.g., SEL-18105GPZ, the SEL-1650PZ the kit lens, the SEL-55-210, etc.) have OSS because the longer the lens (i.e.., the narrower the field of view and the more magnification, the more camera shake becomes an issue). The issue is whether a lens needs the OSS at its focal range, not whether Sony decided to save money (i.e., make the lens cost less to buy--which does not necessarily equate to saving money for the manufacturer). I hope this extra bit of technical explanation helps. By the way, I think the ideas in the answer you got from "BoJo" to your question are both true and misleading because they omit the issue of field of view and its effect on camera shake. In other words, the comments are not "educated" in the sense of understanding photographic concepts and technology. BoJo's comments all relate to cost, profit margins and referring to competing camera models/makes that incorporate an anti-shake feature into the camera bodies (perhaps like Sony's Alpha line that are not "mirrorless" such as the A58 and A77II). In the "mirrorless" line of Sony Alpha cameras (with the exception of the new, bigger Full Frame A7II line) there's no room for OSS hardware in the camera body (hence the addition of OSS to the lenses), There's really no need to "ask Sony" this question; you just need to know something about lens technology that applies to all lenses regardless of their manufacturer.BoJo remarks that "(in-camera stabilization is) one of the clever advantages that camera makers who incorporate OSS into their camera bodies." That's true (and why the FE A7II line now has in-camera OSS), but the issue of the necessary increase in size of the camera body was not mentioned by BoJo. As another example, the Nikon 1 line of mirrorless cameras (a really small line of cameras with a 1-inch sensor) also use in-lens stabilization (Nikon calls it "VR" for vibration reduction) for exactly the reason I've explained...adding stabilization to the camera body makes the body much bigger, more expensive and more complex. Good luck. **Q: What's the equivalent focus length in APS-C frame?** A: Sony NEX/alpha cameras are 1.5x crop factor so you multiply 20mm x 1.5 factor to get a 30mm full frame (35mm film) equivalent lens which is a medium wife angle lens. Good for general street photography. **Q: How much flatter is this one vs the 16mm 2.8?** A: As far as I can tell they are the same housing size. This one has upgraded optics compared to the 16mm. **Q: Does it have Optical Stabilisation?** A: If your question is about Image Stabilization. The lens does not have this feature. ## Frequently Bought Together - Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens - Tiffen 49UVP Slim 49mm UV Protection Filter for Camera Lens, Clear Optical Glass, Impact Resistant, MADE IN USA - Tiffen 49CP Slim 49mm Circular Polarizer Filter for Camera Lens, Glare Control, Contrast Increase, Color Enhancing - MADE IN USA --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/285443528-sony-sel-20f28-e-mount-20mm-f2-8-prime-fixed](https://www.desertcart.co.th/products/285443528-sony-sel-20f28-e-mount-20mm-f2-8-prime-fixed) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-30*