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Sony a1 initial review

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Sony a1 initial review

Image quality

The Sony a1 offers really sensational image quality for almost any type of photography you might be interested in. Processed in Adobe Camera Raw.
ISO 100 | 1/800 sec | F1.4 | Sony FE 35mm F1.4 GM
Photo by Rishi Sanyal

Key takeaways:

  • JPEGs retain very high levels of detail at both low and high ISOs
  • Noise reduction strikes a slightly different balance compared to the a7R IV, opting to reduce more luminance noise at the slight cost of fine detail as light levels drop
  • Colors are improved: richer yellows, less magenta-tainted blues, warmer greens
  • Class-leading Raw dynamic range compared to professional action / sports cameras
  • Almost class-leading dynamic range compared to high-resolution full-frame peers
  • ISO invariant over two ranges: 100-400, 500-102,400

Studio test scene

Our test scene is designed to simulate a variety of textures, colors and detail types you’ll encounter in the real world. It also has two illumination modes to see the effect of different lighting conditions.

Raw

In terms of Raw detail capture, the Sony a1 turns in a really impressive performance, easily on par with similar-resolution competitors across the scene. In fact, you have to look pretty closely to spot any extra detail extracted by the Sony a7R IV’s higher-resolution sensor. The Sony a1 can be prone to false-color artifacts though, just like the other options here, which will require a bit of work in post to remove.

Despite being built to have absolutely insane readout speed, which often comes at a noise cost, the Sony a1 performs similarly well to the Canon EOS R5 at higher ISO values, and comes in a bit behind the Nikon Z7 II and a little ahead of Panasonic’s Lumix DC-S1R. Compared to its pro-oriented peers, the a1 remains competitive, falling perhaps a tad bit behind the Canon EOS-1D X III and the Nikon D5, likely due to its increased pixel count.

JPEG

Moving on to JPEGs, we can see that the Sony a1 has fairly aggressive default sharpening, and looks like it’s been ‘turned up a notch’ compared to the Sony a7R IV. And, in spite of looking pretty similar to the Nikon Z7 II at first glance, the Sony holds on to fine detail much more effectively. Despite the high degree of sharpening, the a1 does not suffer from the overshoot at edges that you can see in images from the Nikon.

All of the options here output what we would call pleasing color, with the Sony exhibiting especially rich yellows. Compared to the Sony a7R IV, it looks like the a1 offers a number of improvements, from these richer yellows to far less magenta-tainted blues, warmer greens and slightly less muted caucasian skin tones (similar to what we saw with the Sony a7S III). Reds appear to have taken a slight dip in saturation and don’t appear as Canon-esque as they did with the a7R IV.

At higher ISO values, the Sony a1 unfortunately exhibits a fair bit of color bleed, with the Nikon putting up the strongest showing here by far. All cameras leave behind a degree of luminance noise, and honestly, all do a good job of holding on to low-contrast detail though the Canon and Nikon fall behind the other options here somewhat. Sony’s own a7R IV looks to hold on to just fractionally more detail at these settings than the a1, which becomes a little more apparent when all are viewed at a common size, but it does so at the expense of more luminance noise. With the a1, Sony chose to strike a slightly different balance, sacrificing a bit of fine detail for reduced luminance noise.

Compared to its professional peers, the a1 retains more detail at the highest ISOs than the Nikon D5 and Canon EOS-1D X III, no doubt helped by its resolution, but it does so at a slight cost of increased luminance noise and color blotches.

Raw Dynamic Range

The a1 is Sony’s third camera to utilize a full-frame stacked CMOS sensor. Its first, the a9, traded off low ISO dynamic range for sensor read speed, with the a9 II improving matters by a little over 1/2 EV at its base ISO. But as we’ll see below, the a1 brings an even greater improvement in low ISO dynamic range despite even faster sensor scan rates than either a9 model (or indeed any other consumer camera we’ve tested).

Our Exposure Latitude test does what you might be temped to do in bright light: reduce the exposure to capture additional highlights, then brighten the shadows. Even after a 6 EV push of an ISO 100 Raw file shot on the a1, noise levels remain modest in shadows, and are comparable to – albeit ever so slightly behind – the class-leading a7R IV:

Compared to its professional-oriented peers, the a1 turns in class-leading performance, with the lowest noise levels and greatest detail compared the Nikon D5, Sony’s own a9 II, and the Canon 1D X III. It’s worth noting that the Canon has similarly low noise levels in shadows after extreme pushes, but this is only made possible thanks to noise reduction in Raw which comes at the cost of detail. Switching the a1 to e-shutter mode shows only the slightest increase in noise in the deepest shadows: small enough that it’ll be irrelevant to most photographers.

Next, we take a look at ISO invariance. Our ISO invariance test looks at images shot with the same exposure settings but different ISO settings. This lets us see how much electronic (read) noise is present, that can be overcome using amplification.

At first glance, the sensor in the a1 does not appear ISO invariant, but this is due to its dual gain design. In the crops above, the noise levels of the ISO 100 and 400 shots pushed +6 and +4 EV appear similar, while the noise levels of the ISO 800 and 6400 shots pushed +3 and 0 EV appear similar. The a1 essentially has two ISO invariant ranges, between 100 and 400, and 500 upward, as ISO 500 is the camera’s second ‘native’ ISO where each pixel switches to its high conversion gain mode for better low light performance.

This means that in dim conditions, you can use the shutter speed and aperture settings of a high ISO exposure, but keep the camera set to ISO 500. By the time you brighten up the shot in post, the image won’t be noticeably noisier than it would be if you had shot natively at a higher ISO, but you’ll have saved many stops of highlight information. Similarly, in brighter conditions where fast shutter speeds might require ISOs above 100 but below 500, you can use the exposure associated with the higher ISO, but keep the camera set to ISO 100 to retain highlights. Think sports or your kids running against the backdrop of a sunset where the action requires at least 1/500s shutter speed. You may easily be bumping up against ISO 400 and clipping those skies to white, but you needn’t do so if you retain the shutter speed and aperture associated with the higher ISO but then dial the ISO back to 100 to keep the highlights from clipping.

The fully electronic shutter mode again only shows a tiny increase in noise in the deepest shadows at the lowest ISOs, and any differences in performance disappear at ISOs above 200, where amplification overcomes any extra read noise accompanying e-shutter mode.

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A nature photography tour of Madagascar, Part 3: Kirindy Forest

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A nature photography tour of Madagascar, Part 3: Kirindy Forest


In the last two articles in this series, I wrote about my visits to Andasibe National Park, where I photographed lemurs and chameleons, and Tsingy Rouge National Park, where I saw beautiful erosion-formed formations. This time, I’d like to write about my visit to Kirindy Forest.

A Verreaux’s Sifaka, my favorite lemur species in Kirindy, feeding in a tree. The eyes on some of these lemur species are incredible.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
150mm, 1/1000 sec, F6.3, ISO 800

Kirindy Forest (or Kirindy Private Reserve) is a private nature reserve located in the west of Madagascar. The forest is home to a wide variety of animals, from many species of lemurs to fossas (a very weird-looking predator) to geckos and chameleons. Numerous species of plants and trees are also found in the region, the most famous and iconic of which is the baobab tree.

Baobab trees under post-sunset glow. The gaps between the trees made it easier to compose without creating overlap.

Canon EOS 5D Mark IV, Canon 70-300mm F4-5.6
83mm, 13 sec, F11, ISO 200

From a photographic point of view, Kirindy is nothing less than a paradise and was one of my favorite locations on my month-long Madagascar trip. The wildlife is surprisingly easy to find and photograph (with many highly skilled and cheerful guides available on the premises), the baobabs are easy to get to, and there are comfortable accommodation options close by. The only bad thing is the Wi-Fi connection.

Lemurs are one family of primates Kirindy has no shortage of. There are no less than eight lemur species here, from the tiny Madame Berthe’s Mouse Lemur (the smallest primate in the world, weighing 30 grams) to red-fronted lemurs, sportive lemurs and sifakas. I photographed all of Kirindy’s diurnal species in three days, which shows how easy they are to find with a good guide. As to being easy to photograph, that’s a different story.

Red-fronted lemur

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
347mm, 1/125 sec, F5.6, ISO 400

The easiest species to find in Kirindy is the red-fronted lemur. They are small and relatively common, so one could say they’re also the least exciting of the local lemur species, but I found them to be very cute and expressive subjects.

Unfortunately due to massive deforestation and climate change, Madagascar’s lemurs are losing their ability to migrate and access water. Authorities are trying to help them by giving them water. The red-fronted lemurs are, therefore, much less averse to getting close to humans. I really hope this doesn’t hurt them in the long run.

A red-fronted lemur is feeding in a tree. Its interaction with its environment is what makes this image. These animals are cathemeral, meaning that they are active during the day and at night, especially during the full moon.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
403mm, 1/250 sec, F6.3, ISO 800

The interestingly named sportive lemurs appear not to be sportive at all. Most of the time, they rest in the trees to digest the plants they have eaten. But during the mating season, male sportive lemurs have been observed to box with each other, which gave them their unusual name.

This sportive lemur looked like it had one too many drinks the previous night!

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
516 mm, 1/500 sec, F6.3, ISO 1600

The crown jewel of Kirindy’s wildlife selection (in my opinion) is the Verreaux’s sifaka, a beautiful, medium-sized lemur. Its thick and silky fur is mostly white, other than dark brown patches on the top of the head, face and arms. Like all sifakas, it has a long tail that it uses as a balance when leaping from tree to tree, where they are capable of making remarkable leaps. Distances of 9–10m (30ft) are not uncommon.

A Verreaux’s sifaka lemur, beautifully framed between tree branches. Those eyes are to die for!

Canon EOS 5D Mark IV, , Sigma 150-600mm F5-6.3
531mm, 1/320 sec, F6.3, ISO 800

As a rule, the better composed the jumping shots I got, the worse the sharpness was on them. These guys are notoriously hard to catch when jumping. Here’s an effort, with the sifaka showing its trademark Superman-style jump.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
150mm, 1/2500 sec, F5.6, ISO 800

Unfortunately, sifakas are very hard to photograph. They tend to stay very high up in the trees, which keeps them both far away and at awkward angles. This forces the photographer to use longer lenses, which becomes surprisingly tiresome when hand-holding the camera. I wanted to shoot at eye level but ended up shooting upward the vast majority of the time. They also just love hopping from tree to tree exactly when a photographer has finally found a good composition.

This sifaka looked like something out of a Dr. Seuss book. Note the shooting angle is less than optimal here, due to the height of the tree it was sitting on.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
302mm, 1/800 sec, F5.6, ISO 400

As beautiful as they are shy. A lucky eye-level shot.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
421mm, 1/1000 sec, F6.3, ISO 800

My visit to Madagascar was during baby season for lemurs, which was wonderful. I ended up seeing many species carrying very young and impossibly cute baby lemurs, and the sifakas were no different.

Again, the challenge was the distance and their tendency to move around all the time, probably even more so when carrying babies. Unfortunately, about 30% of infants are lost to predators like the fossa, a cat-like mammal, and a smaller number to raptors such as the Madagascar harrier-hawk.

For the first 6-8 weeks, the infant clings to the mother’s stomach, but for the following 19 weeks, it clings to her back. During my trip, I saw infants up to 8 weeks old. I guess the signature eyes are there from birth!

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
600mm, 1/500 sec, F6.3, ISO 800

A lucky closer-range, eye-level shot of a baby sifaka in its mother’s fur.

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
600mm, 1/125 sec, F6.3, ISO 800

I’m not much of a bird photographer, but several beautiful owl species are in Kirindy, and they were relatively easy to find.

Madagascar scops owl

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
516mm, 1/250 sec, F6.3, ISO 400

White-browed owl

Canon EOS 5D Mark IV, Sigma 150-600mm F5-6.3
283mm, 1/160 sec, F5.6, ISO 400

Finally, the Kirindy area was once home to a huge forest of baobabs. Not many remain, but those that are still there are huge and impressive. It was fun photographing a group of baobabs in the late afternoon and early evening, under direct light and during post-sunset glow.

The more baobabs close together in one location, the harder they are to compose, but if you manage to combine multiple elements into one shot in a satisfying way, then perhaps you’ve achieved something.

Canon EOS 5D Mark IV, Canon 11-24mm
19mm, 1/100 sec, F14, ISO 100

Here, I used the gaps between the foreground trees to frame the background trees.

Canon EOS 5D Mark IV, Canon 70-300mm F4-5.6
84mm, 0.8 sec, F14, ISO 100

I highly recommend visiting Kirindy Forest if you’re interested in Madagascar’s wildlife. The concentration of fascinating species and relaxed atmosphere are unmatched.

In the next article in this series, I will write about my journey from Tsingy De Bemaraha National Park to Isalo.


Erez Marom is a professional nature photographer, photography guide and traveler based in Israel. You can follow Erez’s work on Instagram and Facebook, and subscribe to his mailing list for updates and to his YouTube channel.

If you’d like to experience and shoot some of the world’s most fascinating landscapes with Erez as your guide, take a look at his unique photography workshops in Madagascar, Greenland, the Lofoten Islands, Namibia and Vietnam.

Erez also offers video tutorials discussing his images and explaining how he achieved them.

More in this Series:

Selected Articles by Erez Marom:





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DPReview Rewind: the birth of the Canon EOS D30, its first ‘home grown’ DSLR

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DPReview Rewind: the birth of the Canon EOS D30, its first ‘home grown’ DSLR


In the early days of digital, cameras were big, bulky, expensive and mostly out of reach for people unwilling to shell out professional-level MSRPs. Then came the Canon EOS D30, a landmark camera that introduced a slew of film photographers to digital, inspiring photojournalists to give up high-end film cameras and a new generation of wedding photographers, portraits and landscape artists to dip into the DSLR pool.

At $3000, it was not cheap, but it was within reach of a new category of camera buyer, the ‘prosumer.’

During our 25th anniversary year, we’re looking back at some of the milestones in camera history. On this day in history, on May 17, way back in the year 2000, the D30 was announced as Canon’s first built-from-the-ground-up in-house DSLR. Up to this point, Canon’s DSLRs (the EOS D2000 and EOS D6000) were joint ventures with Kodak. These cameras married Kokak internals with Canon bodies.

With the new camera, Canon was doing it all themselves, including designing a new body, its own sensors and processors and the introduction of its own RAW and JPEG engines. It would also become the first DSLR with an APS-C format CMOS sensor, a blistering 3.25MP beast capable of 3 RAW image bursts (or 9 Fine JPEG) and a full day of shooting on a single charge. It was pretty cutting-edge for the time.

The camera would arrive on store shelves in time for the holidays. In our review, dated Oct 10, 2000, we noted the monumental task that Canon had taken on. They had not only taken on building a camera on their own and decided to use a relatively new high-resolution CMOS sensor at a time when CMOS struggled with high megapixel builds, but they also had to know consumers would be comparing their camera to the previously announced, although not yet released, Nikon D1.

But Canon had pulled it off, and we were impressed, writing: “Canon’s engineers, designers and developers haven’t let them down, the D30 WILL go down in history books as a very important camera, breaking a price barrier and opening up the digital SLR market (more so than Fujifilm’s S1 Pro) to a new wave of users, both new and old. From the minute you pick up the D30 … you get a feeling of quality you weren’t expecting.”

Revisit our Canon EOS D30 review



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DPReview Rewind: the birth of the Canon EOS D30, its first ‘home grown’ DSLR

Published

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DPReview Rewind: the birth of the Canon EOS D30, its first ‘home grown’ DSLR


In the early days of digital, cameras were big, bulky, expensive and mostly out of reach for people unwilling to shell out professional-level MSRPs. Then came the Canon EOS D30, a landmark camera that introduced a slew of film photographers to digital, inspiring photojournalists to give up high-end film cameras and a new generation of wedding photographers, portraits and landscape artists to dip into the DSLR pool.

At $3000, it was not cheap, but it was within reach of a new category of camera buyer, the ‘prosumer.’

During our 25th anniversary year, we’re looking back at some of the milestones in camera history. On this day in history, on May 17, way back in the year 2000, the D30 was announced as Canon’s first built-from-the-ground-up in-house DSLR. Up to this point, Canon’s DSLRs (the EOS D2000 and EOS D6000) were joint ventures with Kodak. These cameras married Kodak internals with Canon bodies.

With the new camera, Canon was doing it all themselves, including designing a new body, its own sensors and processors and the introduction of its own RAW and JPEG engines. It would also become the first DSLR with an APS-C format CMOS sensor, a blistering 3.25MP beast capable of 3 Raw image bursts (or 9 Fine JPEG) and a full day of shooting on a single charge. It was pretty cutting-edge for the time.

The camera would arrive on store shelves in time for the holidays. In our review, dated Oct 10, 2000, we noted the monumental task that Canon had taken on. They had not only taken on building a camera on their own and decided to use a relatively new high-resolution CMOS sensor at a time when CMOS struggled with high megapixel builds, but they also had to know consumers would be comparing their camera to the previously announced, although not yet released, Nikon D1.

But Canon had pulled it off, and we were impressed, writing: “Canon’s engineers, designers and developers haven’t let them down, the D30 WILL go down in history books as a very important camera, breaking a price barrier and opening up the digital SLR market (more so than Fujifilm’s S1 Pro) to a new wave of users, both new and old. From the minute you pick up the D30 … you get a feeling of quality you weren’t expecting.”

Revisit our Canon EOS D30 review



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