#aspherical lenses

[techdriveplay]

Sony Releases FE 24-50mm F2.8 G, a Compact, Large Aperture F2.8  G Lens™ with High Performance Optics  

Sony is pleased to announce the release of its new compact 35mm full-frame compatible α™ (Alpha™) E-mount lens, FE 24-50mm F2.8  G (product name SEL2450G) standard zoom with F2.8 maximum aperture over the entire zoom range. Despite its small and lightweight body, it achieves the high-resolution performance and beautiful bokeh that can be expected from a large aperture G Lens with F2.8.  It covers…

[cameracious]

Camera Lens Evolution

The camera lens has been an integral part of photography since its inception, and its evolution has been marked by numerous technological advancements. In this article, we will explore the major milestones in the evolution of camera lenses, from the earliest experiments to the advanced features of modern lenses.

Early Experiments

The earliest experiments with lenses date back to the ancient Greeks, who used glass spheres to magnify images. The camera obscura, a device that used a pinhole to project an image onto a surface, was also an early precursor to the modern camera lens. In the 17th century, scientists began experimenting with lenses made of polished glass to improve the quality of the projected image.

The Achromatic Lens

In 1757, English optician John Dollond invented the achromatic lens, a lens made of two different types of glass that reduced the problem of chromatic aberration. This innovation improved the quality of the projected image and paved the way for the development of modern camera lenses.

The Anastigmat Lens

In 1887, German optician Paul Rudolph invented the anastigmat lens, a lens that corrected for distortion and other optical aberrations. This innovation allowed photographers to capture sharp, clear images with greater accuracy and fidelity.

The Zoom Lens

In 1959, the first zoom lens was introduced by the Japanese company Bell & Howell. The zoom lens allowed photographers to adjust the focal length of the lens, which made it possible to capture images at different magnifications without changing lenses. The zoom lens was a major breakthrough in photography, allowing photographers to capture a wider range of images with a single lens.

Aspherical Lenses

In the 1980s, camera manufacturers began to experiment with aspherical lenses, which used non-spherical surfaces to correct for optical aberrations. Aspherical lenses were more complex and expensive to produce than traditional spherical lenses, but they offered improved image quality and reduced distortion.

Autofocus Lenses

In the 1980s and 1990s, camera manufacturers began to introduce autofocus lenses, which used motors and sensors to automatically adjust the focus of the lens. This feature made photography more accessible to casual users and helped to popularize photography as a hobby.

Image Stabilization

In the 1990s and 2000s, camera manufacturers introduced image stabilization technology, which used gyroscopic sensors to reduce camera shake and improve image quality. Image stabilization technology has become a standard feature in many modern camera lenses, and it has allowed photographers to capture sharper images in a wider range of conditions.

Conclusion

The evolution of camera lenses has been marked by numerous technological advancements that have revolutionized the field of photography. Each new development has expanded the possibilities of what is possible with photography, and has made it easier for photographers to capture sharp, clear, and accurate images. While the history of camera lenses is still being written, the legacy of these early optical pioneers lives on, inspiring and informing the work of photographers around the world.

Source: History of Camera – From Camera Obscura to SLR

[cmipooja]

Silicon (Si) Lenses Market Ready To Reach An Estimated Market Size Of US$ 383.76 Million By The End Of 2030

Market Overview: The global Silicon (Si) Lenses Market is estimated to be valued at US$ 215.18 million in 2022 and is expected to exhibit a CAGR of 7.5% over the forecast period 2022-2030, as highlighted in a new report published by Coherent Market Insights. Silicon lenses are widely used in various industries such as healthcare, aerospace, defense, and electronics. These lenses offer numerous advantages such as high transmission rate, low reflection, and excellent thermal stability. The demand for Silicon lenses is driven by the increasing use of technology in different sectors and the need for high-quality optical components. Market key trends: The key trend driving the Silicon lenses market is the growing demand for high-resolution imaging systems. With the advancements in technology, the demand for high-quality imaging has increased significantly. Silicon lenses offer excellent image resolution and clarity, making them ideal for use in cameras and other imaging devices. These lenses provide superior optical performance, ensuring clear and sharp images. For instance, many smartphone manufacturers are using Silicon lenses to enhance the image quality of their devices. PEST Analysis: Political: The political factors impacting the Silicon lenses market include government regulations related to the use of optical components in different industries. Governments focus on promoting domestic manufacturing and research and development activities to drive technological innovation. Economic: The economic factors influencing the market include the overall economic growth of countries, disposable income of individuals, and investment in technological advancements. The growth of emerging economies and increasing disposable income are expected to drive market growth. Social: The social factors affecting the market include changing consumer preferences and an increasing demand for high-quality imaging devices. The adoption of smartphones with advanced camera features and the use of Silicon lenses in healthcare and defense sectors are driving market growth. Technological: Technological advancements play a crucial role in the Silicon lenses market. Continuous innovations in lens manufacturing techniques, such as precision molding and coating technologies, are enhancing the quality and performance of Silicon lenses. The integration of Silicon lenses with other advanced technologies, such as augmented reality and artificial intelligence, is also driving market growth. Key Takeaways: - The Global Silicon (Si) Lenses Market Demand is expected to witness high growth, exhibiting a CAGR of 7.5% over the forecast period. This growth is driven by the increasing demand for high-resolution imaging systems in various industries. - In terms of regional analysis, North America is expected to dominate the Silicon lenses market due to the presence of major players and technological advancements in the region. Asia Pacific is expected to be the fastest-growing region, driven by the increasing demand for smartphones and consumer electronics. - Key players operating in the global Silicon lenses market include Edmund Optics, Thorlabs, ISP Optics Corporation, II-VI Incorporated, Precision Optical Inc., CVI Laser Optics, Newport Corporation, LightPath Technologies, Sydor Optics, Janos Technology LLC, Reynard Corporation, Shanghai Optics Inc., Knight Optical, Rocky Mountain Instrument Co., and Shanghai Optics Technology Co., Ltd. These players focus on product innovation and strategic partnerships to gain a competitive edge in the market.

[karingottschalk]

Leitz Auction: Leica Vario-Elmar-M 3.5-5.6/28-75mm Aspheric Prototype – Commentary

[taperwolf]

Edmund Scientific was a company that got its start in the 1940s selling surplus optics — lenses, and then microscopes and telescopes — and expanded into a big mail-order catalog that sold science educational stuff to the public. It also branched out into selling top-shelf scientific lens, camera, and laser systems to industry and research labs. Early in the 2000s, they decided they were just going to focus on the latter and flogged off the consumer end of the business.

But somehow I stayed on their mailing list, which is why I've gotten a glossy catalog full of aspherical lenses, optical stages, beamsplitters, neutral density filters, and helium-neon lasers delivered to me every couple of months for the past two decades.

[girlbeans]

☀️ DSLR spotlight: Panasonic Lumix DMC-L10 🌕

In 2007, Panasonic released their second DSLR, the Lumix DMC-L10. This is about as close as I am at this point to Leica hardware, as this camera comes with an optically stabilized 14-50mm Leica 'D Vario-Elmar' aspherical telephoto lens.

Capturing up to 10.1 megapixels, the Leica glass takes crisp and vibrant photographs, especially when ample light is present, as the highest aperture is only F3.8 when set to the minimum 14mm focal length.

Overall, I find it an enjoyable shooting experience, but without an extensive selection of Four Thirds mount lenses in my collection it doesn't get an extreme amount of use from me. It's the first DSLR released with a fully articulating LCD screen on the rear of the camera, so I'm sure that was a huge part of the cool factor back in 2007.

[nateaz]

As a photographer who has worked with both modern and vintage glass in antique lenses, I can easily distinguish lens artifacts. I wish a lot of you weren't so gullible who think lens flare, bokeh, aspherical artifacts were supernatural orbs!? I have to debunk and point this out on the daily when people post so many different "orb" photos! It makes me lose hope in Humanity and think we are on a downward slope to a pure idiocracy! You have to be smarter than this, especially the UFO Enthusaists, etc. https://www.instagram.com/p/Cn7fMx2vXXu/?igshid=NGJjMDIxMWI=

[bajaj-eye-care-centre]

Cataract surgery in Pitampura

Cataract Surgery In Pitampura, Delhi

Micro Phaco with Micro Incision Foldable Lens (MICS)

Cataract is the clouding of the lens of your eye that impairs vision. Cataract is responsible for more than half of blindness in the world, which is a grim fact because it is a treatable condition. In cataract there is a buildup of protein in the lens that makes it cloudy. This prevents light from passing clearly through the lens, thereby causing loss of vision.

Advancing age is a primary reason for cataract. With age, protein of the lens turns opaque. Other causes of cataract are metabolic disorders such as diabetes, excessive exposure to sunlight, lifestyle disorders like heavy alcohol consumption and smoking. Injury to the eye can also lead to clouding of the lens of the eye.

Treatment of Cataract When cataract forms, surgery is the only way to treat it. In cataract surgery, the surgeon removes the clouded lens and puts an Intra Ocular Lens (IOL) in your eye. Your vision will be as good as pre-cataract days, though you may need to wear glasses. Over the years, cataract surgery has moved from vision restorative to refractive surgery, so that you have reduced need of glasses.

Type of Intra Ocular Lenses (IOL) for Cataract Surgery

Foldable IOL Micro Phaco Surgery

Aspheric Foldable IOL Micro Phaco Surgery

Toric Foldable IOL Micro Phaco Surgery

Multi-Focal Foldable IOL Micro Phaco Surgery

Phacoemulsification with Foldable IOL's

At Bajaj Eye Care Centre we use STELLARIS TM Micro Surgical System which is the world’s most advanced technology of Cataract Surgery by Bausch and Lomb approved by FDA.

Through microphaco technology a very small incision of around 1.8mm is required to remove cataract from the eye. Through this ultra small incision, a very high frequency MICS Phaco tip is introduced inside the eye, breaking the hardest of cataracts into very small fragments which are sucked out through the same tip. Irrigation is provided through a separate side port. This arrangement provides the advantage of speedy recovery, faster healing and lesser surgery induced astigmatism. The surgery involves insertion of foldable Intra-Ocular lens which can be inserted through the 1.8mm incision.

Bajaj Eye Care Centre is also equipped with Pulsar Minimal Stress Phaco Emulsification with advanced Posterior Vitrectome System from OPTIKON(Italy)

We are handling a variety of Cataract cases and have given complete satisfaction to thousands of patients who have chosen Bajaj Eye Care Centre for cataract surgery.

Types of Intra-Ocular Lenses (IOL) for Cataract Surgery

Hydrophilic foldable IOL

Hydrophobic foldable IOL

Aspheric foldable IOL

MICS foldable IOL

Toric foldable IOL

Multifocal foldable IOL

Crystalens foldable IOL from Bausch & Lomb

[evergreencarpark]

November 23, 2022 (3 of 3)

Testing out the Voigtlander Nokton 35mm f/1.2 Aspherical III VM lens. I now own the 3 Nokton f/1.2 lenses I wanted to get: the 35mm, 40mm, and 50mm. The 35mm is as sharp as the 50mm, with haze-like qualities as the 40mm, wide open.

I love these lenses. The Nokton f/1.2 VM lenses are probably my favorite set of lenses. But to be honest, they’re a bit of a pain in the ass to use on a mirrorless camera. Which is why I’m saving up for a Leica now.

#photography #streetphotography #ihatestreetphotography #ihsp #nycphotographers #dawn #morning #sunrise #rooseveltisland #manhattan #nyc #newyorkcity #sony #a7ii #voigtlander #nokton #35mm #vm #rangefinder

[alexakimms]

Best fisheye lens 2022

Introduction

You've probably heard about virtual reality (VR) by now. It's been huge lately, and it doesn't seem to be slowing down anytime soon. VR has a lot of potential uses, from entertainment to education to business. But what is VR, exactly? VR is a type of technology that allows you to experience a different reality. It works by creating a completely immersive environment that you can interact with. You can see, hear, and feel everything around you, as if you're really there. This makes it perfect for things like training and education. You can learn faster and more effectively in a VR environment than you could any other way. But that's just the beginning. VR is also being used in the medical field, for things like surgery and rehabilitation. There are even plans to use VR to help people with anxiety and other mental health issues. VR has the potential to change the world, and we're just seeing the beginning of it.

What Are the Best Fisheye Lenses on the Market?

You're probably thinking, "What the heck is a fisheye lens?" Well, let me tell you. A fisheye lens is a type of ultra-wide angle lens that gives you an almost 180-degree view. This type of lens is perfect for VR because it offers an immersive experience that feels more realistic. There are a few different fisheye lenses on the market, but not all of them are created equal. So, what's the best fisheye lens on the market? Here are a few of our favorites:

1. The Canon Fisheye Lens :

- Advanced Optics For Professional Imaging - Quiet And Fast Autofocus And Low Light Performance , - Built For Professional Performance - Max Focal Length: 15.0 - Read More

2. The Nikon Fisheye Lens

- Widest NIKKOR fisheye Lens yet and the first with zoom capability - Capture EPIC 180 Degree circular images and traditional frame-filling fisheye images - Close focusing up to 0.5 inches from your subject for macro-style fisheye images - Weather-sealed design and Nikon protective fluorine Coat for use in harsh conditions - Equally suited for still photography and video work - Read More

3. Opteka 6.5mm f/3.5 Professional Ultra Wide Angle Aspherical Fisheye Lens

- EXPANSIVE 180 DEGREE VIEW - HD SUPER MULTI-COATED OPTICS - - CONSISTENT AND SHARP IMAGES - DURABLE HEAVY DUTY CONSTRUCTION - COMPATIBILITY - Can be used on all Canon EOS APS-C cameras including 90D, 80D, 77D, 70D, 60D, 50D, 40D, 30D, 20D, 10D, 7D, Rebel T8i, T8, T7i, T7s, T7, T6i, T6s, T6, T5i, T5, T4i, T3i, T3, T2i, T1i, SL3, SL2, and SL1. - Read More

The Future of VR With Fisheye Lenses

Imagine being able to step into a completely immersive virtual world. With a fisheye lens, that's now possible. This technology is the next big thing in VR. It creates an incredibly realistic experience that's so immersive, you feel like you're really there. Fisheye lenses are perfect for creating a sense of depth and making you feel like you're part of the action. The possibilities for this technology are endless. It's already being used in medical training, for example, to help surgeons learn new procedures. And it's also being used in military training, to help pilots prepare for real-world scenarios. The future is looking very exciting for VR!

Conclusion

You've probably heard about virtual reality (VR) by now. It's been a huge topic of discussion in the media and in the business world over the past few years. But what is VR, exactly? And what can it be used for? VR is a digital technology that allows you to create a completely immersive virtual environment. You can explore this environment, interact with its inhabitants, and even learn new skills in it. VR has many uses, from entertainment to education to business. One of the most interesting aspects of VR is its potential for training and education. VR can be used to speed up training for things like fighter piloting or surgery. It can also be used to teach people new skills in a safe and controlled environment. VR has the potential to revolutionize education as we know it. Whether you're interested in VR for entertainment, education, or business, there's no doubt that this technology is changing the world as we know it. Keep an eye on VR – it's only going to get bigger and better in the years to come!

Best Fisheye lens under $200 Click Here

Read the full article

[kimslabellabaskets]

Check out this listing I just added to my Poshmark closet: TAHARI WOMEN'S PREMIUM READING GLASSES +2.00 - ANIMAL PRINT CAT EYE FRAME.

[vrwaved]

📖✍Delve into the World of Oculus Quest 2 Lenses |VR WAVE📖✍

The Oculus Quest 2 has transformed the virtual reality landscape, providing an immersive experience that appeals to gamers, educators, and tech enthusiasts alike. A crucial component of this experience lies in its lenses, which play a significant role in delivering high-quality visuals and comfort.

👉✨Understanding Oculus Quest 2 Lenses

The lenses in the Oculus Quest 2 Lenses designed to optimize the visual experience while minimizing eye strain. Here’s what makes them stand out:

Key Features

Aspheric Lens Design: The lenses use an aspheric design that helps reduce distortion, providing a clearer image across the entire field of view.

Adjustable IPD: The interpupillary distance (IPD) can be adjusted to accommodate different eye distances, ensuring that every user can achieve a comfortable and focused view.

Anti-Reflective Coating: This coating reduces glare and enhances color accuracy, making the virtual environment more vibrant.

👉✨Benefits of Quality Lenses

The right lenses can significantly enhance your VR experience. Here are some benefits:

Improved Visual Clarity: Clearer images enhance immersion, allowing users to engage deeply with virtual environments.

Reduced Eye Fatigue: Proper lens design minimizes strain, enabling longer play sessions without discomfort.

Enhanced Depth Perception: High-quality optics improve spatial awareness, crucial for navigating 3D spaces.

👉✨Caring for Your Oculus Quest 2 Lenses

Maintaining the quality of your lenses is essential for longevity and performance. Here are some tips:

Keep Them Clean: Use a microfiber cloth to gently wipe the lenses, avoiding scratches.

Store Properly: When not in use, store the headset in a protective case to prevent dust accumulation.

Avoid Direct Sunlight: Prolonged exposure can damage the lenses, so store the device in a cool, shaded area.

In summary, the lenses of the Oculus Quest 2 are vital for delivering an immersive and enjoyable VR experience. Understanding their features and benefits can help you make the most out of your virtual adventures.

[alexsmale]

End Of Year Round Up: The Best VR Headsets Of 2024

The rise in popularity of Virtual Reality (VR) has been considerably slow. Still, it has had a significant influence in various industries, including gaming, education, entertainment, and even health care. However, with many models in the market, it’s difficult to determine which one offers the best virtual experience. That’s why I’m here to guide you on some of the best VR headsets of 2024.

By the end of this post, you’ll know exactly which headset will best meet your particular preferences and needs. 

Best VR Headsets of 2024

Here is a list of the best VR headsets of 2024:

1. Best Bang For Buck: The Pimax Crystal Light

For those seeking a high-quality VR without the trouble of a steep cost, the Pimax Crystal Light is your go-to set-up. It features an ultra-sharp resolution of 2880×2880 pixels per eye, with an impressive 35 pixels per degree. The display also uses QLED technology that offers vibrant colors and contrast compared to traditional LCD panels.

It’s also worth noting that the Crystal Light uses the exact same display as its more expensive sibling, the Pimax Crystal. Other significant improvements over the original Crystal include a 200-gram reduction in weight and a redesigned head strap. This means you’re getting the same top-tier display quality and added comfort at a cheaper price.

Pros

Wide field-of-view (FOV) that contributes to a more immersive experience

Uses inside-out tracking, which simplifies the setup and makes the headset more user-friendly

Employs high-quality glass aspheric lenses that contribute to a large sweet spot

Cons

There’s no eye-tracking feature

Has a very large and clunky design

2. Best For Budget: Meta Quest 3S

The Meta Quest 3S is the best budget-friendly VR headset, offering impressive performance for its price. Most people would consider this setup to be a watered-down version of its well-received predecessor, the Meta Quest 3. However, Meta Quest 3S still carries more similarities than differences at a much lower price. 

The Meta Quest 3S consists of a Snapdragon XR2 Gen 2 chip along with 8GB of RAM. The combination of both helps deliver twice-as-fast GPU performance, thus catering to faster loading times and overall smoother gameplay. Additionally, the 3S has a dual RGB camera system, allowing for full-color passthrough during mixed-reality games. 

Pros

Rated for a higher battery life than the Quest 3

Has an “Action Button” to easily switch between passthrough and immersive modes

A smoother and less jagged visual experience due to that extra processing power

Cons

Consists of fresnel lenses, which lead to lower resolution and less sharp visuals

Lacks the fine-tuning PD (Pupillary Distance) adjustments

3. Overall Best: Somnium VR1

The Somnium VR1 emerges as one of the best VR headsets due to its acute attention to quality. One of the standout features of this headset is its crystal-clear visuals and exceptional brightness, which help add to the immersive experience. Users are able to explore virtual worlds with such stunning details and vivid colors that other headsets dim in comparison. 

Another feature that contributes to VR1’s experience is its expansive FOV. Most high-end headsets feature an FOV of about 130 degrees. So, you’ll be glad to know that the Somnium VR1’s FOV is more than 120 degrees horizontally and 105 degrees vertically. This means you’ll be able to view more of your virtual surroundings at once and feel fully present in the environment. 

Pros

Accommodates PDs of 58 mm – 76 mm through manual adjustment

Headset can be fully opened and customized by expert users

Can enjoy the content without technical glitches or interruptions

Cons

Does not have built-in audio speakers

Front-heavy design that weighs on the user’s neck after a while

Conclusion

The VR headset you choose to invest in can make or break your overall virtual experience. So, we’ve narrowed down your search to some of the best VR headsets. To get the most out of your money, go for the Pimax Crystal Light or Meta Quest 3S. If not, you can also consider the Somnium VR1 for overall quality.

Besides this, VR technology can also help improve the quality of life of dementia patients. If you want to help a loved one and learn more about this service, contact me today. I’m Alex Smale, and proud owner of the award-winning VR application, Immersicare.

[karingottschalk]

Cosina's Voigtländer Manual Prime Lenses for Fujifilm X-Mount Cameras Are Getting More Interesting With Two More Coming Soon, 27mm f/2.0 & 35mm f/0.9

[mordormr]

Zooming into the Future: Key Trends Shaping the Smartphone Camera Lens Market

The Smartphone Camera Lens Market Size is projected to be valued at USD 5.01 billion in 2024 and is anticipated to grow to USD 7.43 billion by 2029, registering a compound annual growth rate (CAGR) of 8.21% over the forecast period (2024-2029).

Key Trends in the Smartphone Camera Lens Market:

Rising Demand for High-Resolution Lenses: Consumers are prioritizing smartphones with superior camera quality, pushing manufacturers to innovate and introduce high-resolution lenses. The demand for 48MP, 64MP, and even 108MP camera lenses is increasing, enabling users to capture professional-grade photos and videos.

Growth of Multi-Camera Setups: Dual, triple, and even quad-camera systems are becoming standard features in modern smartphones. This trend is driven by the need to offer versatile photography options such as wide-angle, macro, telephoto, and depth-sensing lenses, providing consumers with a comprehensive range of imaging possibilities.

Advancements in Lens Materials: The development of new materials like hybrid glass-plastic lenses and ultra-thin aspherical lenses is enabling manufacturers to create compact, high-performance lenses. These innovations are contributing to enhanced image clarity, reduced distortion, and better low-light performance.

AI-Powered Photography Enhancements: The integration of artificial intelligence (AI) is transforming smartphone photography. AI-powered features such as scene detection, object tracking, and enhanced night mode are becoming crucial factors in lens design, helping smartphones achieve DSLR-like results.

Growing Demand for 3D Sensing and Augmented Reality (AR) Lenses: With the rise of AR applications and 3D sensing technologies, there is an increasing need for smartphone camera lenses that can support advanced functionalities. Depth-sensing and ToF (Time of Flight) lenses are becoming more prevalent in smartphones, enhancing user experiences in gaming, shopping, and virtual reality (VR).

Miniaturization and Foldable Camera Technology: As smartphones become sleeker and thinner, manufacturers are working on miniaturizing camera components without compromising image quality. Foldable smartphones are also influencing the design and development of new camera modules, pushing the boundaries of innovation in lens technology.

Sustainability and Eco-Friendly Manufacturing: As environmental concerns grow, some smartphone manufacturers are focusing on sustainable and eco-friendly materials for camera lens production. This shift is helping reduce the carbon footprint associated with lens manufacturing, contributing to more sustainable supply chains.

Conclusion: The smartphone camera lens market is evolving rapidly, driven by consumer demand for better image quality and emerging technologies like AI, AR, and 3D sensing. As competition among smartphone manufacturers intensifies, the focus on camera lens innovation will continue to grow, offering consumers a more immersive and versatile mobile photography experience. With ongoing advancements in lens technology, the future of smartphone photography is brighter than ever.

For a detailed overview and more insights, you can refer to the full market research report by Mordor Intelligence https://www.mordorintelligence.com/industry-reports/smartphone-camera-lens-market