Connect with us

Camera

China’s Tianwen-1 probe captures incredible HD images of Mars

Published

on

China’s Tianwen-1 probe captures incredible HD images of Mars

China’s Tianwen-1 probe has spent nearly a month orbiting Mars, and now we have stunning images from the voyage. The China National Space Administration (CNSA) released three images earlier this month, two in black and white and one in color. They’re the first high-definition images from the Tianwen-1 mission.

Between CNSA and NASA, we have been spoiled with amazing Mars imagery lately. Last month, when NASA’s Perseverance rover landed on the red planet we got a glimpse at images shot with impressive new tech. Shortly after Perseverance landed, NASA shared a 360° photo from Mars.

An image captured by Tianwen-1 at an altitude of about 220 mi (350km) above Mars. Image credit: CNSA. Click to enlarge.

In its English press statement, CNSA writes, ‘The two black-and-white 7-meter-resolution images were taken by the high-definition camera on Tianwen 1’s orbiter when the probe was about 330 to 350 kilometers above the Martian surface. Craters, mountain ridges and sand dunes on the red planet are clear on the pictures. The color picture was generated by another camera on the orbiter, showing Mars’ north pole.”

An image captured by Tianwen-1 at an altitude of about 220 mi (350km) above Mars. Image credit: CNSA. Click to enlarge.

Tianwen-1 is China’s first independent Mars mission. The probe, which carries 13 scientific instruments in total, launched on a Long March 5 heavy-lift carrier rocket on July 23 from the Wenchang Space Launch Center in China’s Hainan province. The mission marks the beginning of the Asian nation’s planetary exploration program. Tianwen-1 weighs five metric tons and comprises a pair of primary parts, the orbiter itself and a landing capsule. At the time of the announcement, Tianwen-1 was roughly 131,730,000 miles (212M km) from Earth. The probe entered its preset parking orbit above Mars on February 24 and will stay in this orbit for about three months before deploying its landing capsule.

This image shows Mars’ north pole as captured by the Tiawen-1 probe. Image credit: CNSA. Click to enlarge.

Aboard Tianwen-1 are seven mission payloads, which will be activated during the probe’s time in its parking orbit. The payloads include tools to perform scientific tasks and observations. The payloads also have analytical tools to seek out an optimal landing site for the capsule. CNSA hopes to land a rover on Mars in May or June on the southern part of Mars’ Utopia Planitia, the largest recognized impact basin in our solar system.

CNSA’s Tianwen-1 probe in space, as captured by a small onboard camera. Image credit: CNSA

The rover, which doesn’t yet have a name, weighs 530 pounds (240kg) and has six wheels. Using power from its four onboard solar panels, the rover can move 200m per hour. The rover includes half a dozen scientific instruments, including a multispectral camera, ground-penetrating radar and meteorological measurement device. The plan is for the rover to spend about three months working on the surface of Mars. Assuming the rover lands successfully on Mars and can begin operations, it will be the sixth rover deployed on Mars and the first from outside the United States.

Source link

Continue Reading
Click to comment

Leave a Reply

Camera

On this day: Hasselblad launches first medium format mirrorless

Published

on

By

On this day: Hasselblad launches first medium format mirrorless


We’d never before seen so much silicon wrapped up in such a small package

Photo: Samuel Spencer

The Hasselblad X1D beat Fujifilm to the market by three months in 2016 to become the first mirrorless medium format camera. It wasn’t the first “affordable” (or, at least, sub-$10,000) medium format option: that credit goes to Pentax and its 645D and Z, but it was the first larger-than-full-frame digital camera to be designed as a self-contained ILC with no mirror.

It was built around the same 50MP CMOS sensor as the 645Z, which also underpinned the Fujifilm GFX 50 models, producing some excellent image quality. Hasselblad’s modern minimalist design was eye-catching, and the operability improved significantly through a series of firmware updates (though it never offered the mass-market slickness of the GFX models).

One of the factors that allowed the Hasselblad to be so small was the decision to build leaf shutters into all the XCD lenses, rather than having a physical shutter in the camera body. This resulted in a camera that could sync with flashes all the way up to each lens’s maximum shutter speed. Though this came at the cost both of higher lens prices and of polygonal bokeh, as the shutter/aperture mechanisms had relatively few blades. This second issue was somewhat resolved by an update that allowed the aperture to be opened a fraction beyond the widest listed value, so that the blades don’t intrude on the image.

Click here to see the nearly 200 photos we’ve published from the X1D

Alongside the X1D came the first series of medium format lenses designed specifically for 44x33mm digital, giving some excellent results (to the point that moiré is a significant risk even when stopped-down to F5.6, given the lack of low-pass filter on the X1D’s sensor). It also led to the only instance we’ve seen of a manufacturer referring to equivalent f-numbers. It’s probably no surprise that it would be one of the only companies to solely produce larger than full-frame systems.

We were in the fortunate position to borrow a Hasselblad, Pentax 645Z and Fujifilm GFX 50S at the same time and use them alongside one another, and looked at their comparative strengths and weaknesses. We hope to do something similar with the more refined 100MP cameras from Hasselblad and Fujifilm in the coming months.



Source link

Continue Reading

Camera

On this day: Hasselblad launches first medium format mirrorless

Published

on

By

On this day: Hasselblad launches first medium format mirrorless


We’d never before seen so much silicon wrapped up in such a small package

Photo: Samuel Spencer

The Hasselblad X1D beat Fujifilm to the market by three months in 2016 to become the first mirrorless medium format camera. It wasn’t the first “affordable” (or, at least, sub-$10,000) medium format option: that credit goes to Pentax and its 645D and Z, but it was the first larger-than-full-frame digital camera to be designed as a self-contained ILC with no mirror.

It was built around the same 50MP CMOS sensor as the 645Z, which also underpinned the Fujifilm GFX 50 models, producing some excellent image quality. Hasselblad’s modern minimalist design was eye-catching, and the operability improved significantly through a series of firmware updates (though it never offered the mass-market slickness of the GFX models).

One of the factors that allowed the Hasselblad to be so small was the decision to build leaf shutters into all the XCD lenses, rather than having a physical shutter in the camera body. This resulted in a camera that could sync with flashes all the way up to each lens’s maximum shutter speed. Though this came at the cost both of higher lens prices and of polygonal bokeh, as the shutter/aperture mechanisms had relatively few blades. This second issue was somewhat resolved by an update that allowed the aperture to be opened a fraction beyond the widest listed value, so that the blades don’t intrude on the image.

Click here to see the nearly 200 photos we’ve published from the X1D

Alongside the X1D came the first series of medium format lenses designed specifically for 44x33mm digital, giving some excellent results (to the point that moiré is a significant risk even when stopped-down to F5.6, given the lack of low-pass filter on the X1D’s sensor). It also led to the only instance we’ve seen of a manufacturer referring to equivalent f-numbers. It’s probably no surprise that it would be one of the only companies to solely produce larger than full-frame systems.

We were in the fortunate position to borrow a Hasselblad, Pentax 645Z and Fujifilm GFX 50S at the same time and use them alongside one another, and looked at their comparative strengths and weaknesses. We hope to do something similar with the more refined 100MP cameras from Hasselblad and Fujifilm in the coming months.



Source link

Continue Reading

Camera

Our favorite ‘natural worlds’ pictures: DPReview Editors’ Challenge results

Published

on

By

Our favorite ‘natural worlds’ pictures: DPReview Editors’ Challenge results


June includes multiple days devoted to celebrating nature, including World Environment Day (June 5), World Oceans Day (June 8) and World Rainforest Day (June 22). In that spirit, we chose ‘Natural Worlds’ as the theme for our most recent Editors’ Choice photo challenge, with over 100 readers submitting entries.

We love seeing your work! Thanks to everyone who submitted. We couldn’t call out every image we liked, so we restrained ourselves to a baker’s dozen (in no particular order).

If you don’t see your work here today, don’t despair. We’ll soon announce a new Editors’ Choice challenge.

Also, a quick reminder to keep comments constructive and civil. These are images submitted by your fellow readers who took the time to share their work. Rule #1: Be nice. That’s it, there is no rule #2.



Source link

Continue Reading

Trending

Copyright © 2017 Zox News Theme. Theme by MVP Themes, powered by WordPress.