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Posts Tagged ‘Recently’

NASA’s Juno spacecraft recently captured a stunning image of Jupiter

24 Feb

Image credit: NASA/JPL-Caltech/SwRI/MSSS

With all the recent excitement surrounding NASA’s Perseverance rover landing on Mars and new images, we’ve got space on the brain. This month, NASA published a beautiful image of the gas giant Jupiter that its Juno spacecraft captured in late 2020.

NASA’s Juno spacecraft has been orbiting Jupiter since July 5, 2016. The spacecraft was launched from Cape Canaveral Air Force Station on August 5, 2011. The latest image, seen below, was captured on December 30, 2020, during Juno’s 31st close flyby of Jupiter.

‘Citizen scientist Tanya Oleksuik created this color-enhanced image using data from the JunoCam camera…At the time, the spacecraft was about 31,000 mi (about 50,000 km) from the planet’s cloud tops, at a latitude of about 50° South.’ Image credit: NASA/JPL-Caltech/SwRI/MSSS. Click to enlarge.

This excellent shot shows Jupiter’s turbulent atmosphere and includes several of Jupiter’s southern jet streams. Jupiter’s famous Great Red Spot is visible on the horizon as well. With the aid of imagery and the numerous scientific instruments onboard Juno, scientists discovered that the planet’s atmospheric jet streams extend further than previously thought. Recent evidence shows that the jet streams and belts penetrate up to 1,800 mi (3,000 km) down into the planet.

JunoCam (JCM) is a visible-light camera/telescope. Malin Space Science Systems built the camera. It has a field of view of 58° and includes four filters, three of which are used for visible light photography. The camera is fixed to Juno, so it gets one chance for observation when Juno orbits Jupiter. JCM uses a Kodak image sensor, the Kodak KAI-2020, and records 1,600 x 1,200 pixel images, which is fewer than 2MP. Due to the incredible distance of Juno from Earth, which is more than 550 million miles, only limited data can be transmitted from Juno to Earth during each 11-day orbital cycle.

Image credit: NASA. Click to enlarge.

Citizens are encouraged to download and process JunoCam images. Raw images are available to view and download here. If you’d like to learn more about NASA Citizen Science projects, visit the dedicated Citizen Science website.

Artist concept of Juno. Credits: NASA/JPL-Caltech

The Juno mission’s primary objective is to improve our understanding of Jupiter’s origin and evolution. Juno and its onboard instruments are used to determine how much water is in Jupiter’s atmosphere, analyze the planet’s atmosphere, map magnetic and gravity fields, explore the planet’s magnetosphere, and more. As of now, the Juno mission is due to end in September 2025, so there’ll be plenty of more images to come in the next few years. You can learn more about Juno here.

Articles: Digital Photography Review (dpreview.com)

 
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Brands, breakthroughs and bias: Here’s why you’ve heard so much about Sony recently

15 May

If it feels like we’ve been writing a lot about Sony recently, you haven’t been imagining things: we’ve been writing about its products and technologies quite a bit. But there’s a good reason for that – the company has simply given us a lot to write about.

A period of intense, sustained activity, set against a backdrop of relative inactivity from its competitors has seen Sony receive probably more coverage than any other brand.

Ever since it bought Konica Minolta’s camera business, Sony has been trying to find a foothold in a market sector that’s historically been dominated by two camera makers. Its first attempts were to crowd-out the shelves with ‘me-too’ SLRs. Actually, that’s not quite fair, the a350 was pretty innovative, in its own way. But despite offering lots of models often at low prices, this didn’t yield the desired results.

Sony’s attempts at innovation don’t start with the RX and a7 cameras, but the relentless pace of its updates are a relatively recent trend.

But Sony’s more recent moves, particularly the embrace of full-frame mirrorless and 1″ sensor compacts, along with numerous additional features arriving in the realms of video, sensor technology and autofocus, have included some significant steps forward for the industry. And ones that are relevant for a broad range of photographers.

This has left us with a lot of technology and features to write about. Sometimes this comes in the form of a standalone tech article, other times in the reviews themselves, as we try to explain the real-world benefits and shortcomings we’ve encountered while using them.

Of course we’ve seen this before: periods of innovation from various manufacturers as the industry grows and changes. The introduction of the first mirrorless camera by Panasonic, for example, or its subsequent improvements in video (we often joke that the launch of a GH series camera means we all have to learn more about film-making). Fujifilm was the first to offer on-sensor phase detection and, while divisive, its X-Trans color filter array and DR Modes have given us plenty to talk about.

Mirrorless cameras, as pioneered by Panasonic and Olympus have been the area with most innovation in recent years. Again, this has meant we’ve written about them a lot, as the technology has improved.

What’s unique, though, is the continued drive, this sustained flood of products and of new technologies that Sony has recently been responsible for. And, more starkly, this has come at a time when the industry’s largest two companies have been comparatively quiet. Over the past four years, Sony has released around 60% more new high end (>$ 1000) models than any of its rivals.

This has come at a time when the industry’s largest two companies have been comparatively quiet

This has meant that we write a lot about Sony right now. Not because it’s Sony, specifically, but because they’re the company doing so much of the running at the moment. And of course, our coverage isn’t always positive. Our job is to cover technology and innovations regardless of how well they perform, so in addition to being impressed by the capabilities of DRAM-backed Stacked CMOS sensors, we’ve also written about banding, striping, and work that still needs to be done on the menu systems.

Sony isn’t the only brand innovating, of course. We continue to be impressed by Canon’s Dual Pixel AF design, particularly in terms of the benefits it brings for video shooting, and Nikon launched the D850, arguably the best DSLR the world has seen. But neither brand is delivering the constant innovation that currently sets Sony apart right now.

This is to be expected: the dominant players in the industry will be keen not to change an apparently winning formula, while the insurgent newcomer needs to offer something suitably different to entice people away from the tried and tested ‘safe’ choice.

Canon didn’t achieve its market dominance by chance. Cameras such as the EOS 5D and EOS 300D/Digital Rebel offered something none of its rivals did.

Looking back, we’ve been here before. Canon didn’t achieve its recent market dominance solely by chance: a combination of investment in CMOS technology and aggressive pricing of its mass-market DSLRs played a big role. This combination gave it several years in which its cameras had a distinct edge over most rivals.

Similarly, Nikon made great strides forward around the time of the D3 and D300. These two cameras brought hugely improved autofocus as well as a move to CMOS sensors which greatly increased low light performance (and dynamic range, in subsequent iterations).

The Fujifilm S3 Pro was the first DSLR to offer live view. It could be argued that we failed to recognize its significance at the time.

The long-expected thinning-out of the camera industry hasn’t yet happened: there are still plenty of players in the market. The thing that’s changed is that they’re all competing for a slice of a much smaller pie than they were, just a few years ago. This is likely to mean more brands trying the aggressive, fast-iteration, constant innovation approach that Sony (and, to a lesser degree, Fujifilm) is taking. It’s also unlikely that Sony can continue at this rate indefinitely: there’s every chance that its strategy is to capitalize on being first mover by staking out as much territory as it can before everyone else responds.

Manufacturers are all competing for a slice of a much smaller pie

As the remaining camera brands fight for recognition and search for tech and features to distinguish themselves, we should have plenty more to write about. Especially if, as all the rumors suggest, Canon, Nikon or both end up introducing high-end mirrorless cameras in the next twelve months. After all, despite being well-entrenched in the DSLR market, they’ll both be relative newcomers to serious mirrorless, so may feel the need to be more innovative than we’ve seen in a while.

Busy times, then. And we will cover these with the same vigor and enthusiasm we try to show for every innovative launch. Regardless of which name is on the front of the product.

Articles: Digital Photography Review (dpreview.com)

 
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[MODIFIED] IrfanView – Disable Most Recently Used Files and Folders for Privacy

17 Apr

Increase your privacy by making IrfanView forget the most recently accessed files and folders.

For convenience, IrfanView offers an “Open Recent files” option in its “File” menu, providing you quick access to files you have opened lately. Also, when opening and saving files, IrfanView shows the most recently-access folders as well as commonly-accessed areas such as your Desktop, My Pictures, Favorites, etc.

While these features may be useful if you frequently modify the same files, or images in a particular file location, having this information readily available may violate your privacy if multiple people share the same machine. Thus, you can stop IrfanView from showing this information if desired:…

Read more at MalekTips.
New Computer and Technology Help and Tips – MalekTips.Com

 
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Windows 7 – Find Recently Created or Modified Files

16 Oct

Don’t remember what you named a recent file or what folder / location you placed it in? Use a date modified search.

It has happened to all of us. You recently created or modified a file in some application in Windows 7, but don’t remember its name or what folder in which you placed it. You can try going back to the original application and hope the filename is in the recently used file list by selecting the “File” menu, but what if the file is not there? All hope is not lost!

1. Click the Folder button in the taskbar….

Read more at MalekTips.
New Computer and Technology Help and Tips – MalekTips.Com

 
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