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Best mirrorless frame camera for video12/7/2023 ![]() We've ranked it number one in our best cameras for photos and videos guide and its astronomy variant the Sony A7R IVA is ranked third in our best cameras for astrophotography guide. ![]() However, it's worth noting that astrophotography, with its longer shutter speeds, may consume more battery power. Based on this, we think you could potentially exceed Sony's claims. During our tests, we surpassed Sony's claim of 670 shots using the rear screen and managed to capture over 2000 shots on a single charge, with the battery still showing 65% power remaining. Our Sony A7R IV review found that noise only started to creep in after pushing the ISO up to ISO 6400. It would make a fantastic option for astrophotographers as it performs remarkably well in low light. ![]() At the time of writing, it is the highest-resolution full-frame camera on the market and shoots 4K max video resolution. With a huge 61-megapixel resolution, the Sony A7R IV can bring out exceptional detail, even in the darkest shadows. It's expensive, sure, but you can't argue with the quality of the images it produces, although you'll need a powerful computer to be able to process them. □ Sony A7R IV An incredible camera that was revolutionary when it was released due to its incredibly detailed sensor. Plus, there's a handy feature called face-priority autofocus, which makes it easier to focus on portrait subjects without having to switch to manual focus. If you need extra light for your low-light scenes, there's a hot shoe and PC sync connector on the camera body to connect external lights, both on the camera and off it. It uses an autofocus sensor module called Multi-CAM 20K with TTL phase detection and 153 focus points. The camera is great for shooting videos in low light conditions because it can focus really well even in dark environments (down to -4EV). It also keeps up with the competition regarding video, providing 4K30p video recording with zebra stripes that help highlight potential exposure issues in certain areas. Not to mention, low-light photography doesn't necessarily require fast burst rates. You can choose from a series of stills when shooting in continuous burst mode that captures up to 9FPS, which may not sound like much, but when you consider each image is 45.7MP - that's a serious amount of data capture. This comes in handy when capturing shots in low-light conditions. However, if you use F-mount lenses, you can benefit from Nikon's Vibration Reduction which can provide up to 4.5 stops of stabilization. Unfortunately, the camera itself doesn't have in-body image stabilization. The full frame BSI CMOS sensor handles ISO noise well thanks to the processing ability of the EXPEED 5 image processor - take a look at our Nikon D850 review for our full thoughts on this camera. The D850 has an amazing ISO range of up to 102,400, which is quite impressive considering it's been around for over five years now. But even if you're not a pro, you can still benefit from it. It's built with a tough and lightweight magnesium alloy, and it's completely weather-sealed, so it's durable and reliable. Professional photographers absolutely love the D850 because it's a true workhorse that can withstand any environment. □ Nikon D850 A 45.4MP beast, the Nikon D850 will capture every single star you can possibly see and then some, thanks to its wide ISO range - although DSLRs are being phased out in favor of mirrorless models. While this isn't crucial for excellent astro shots (and can sometimes be a hindrance), you may benefit from the extra megapixels if you're going to be producing large prints or shooting other styles of photography, such as landscape, or shooting long-lens wildlife photos where stunning detail makes the world of difference. The other obvious difference is the Z7 II has almost double the amount of megapixels - 45.7MP vs the 24.5 megapixels of the Z6 II, giving absolutely mind-blowing resolution. This may not seem like a big deal, but it's extremely useful for professional photographers and gives everyone more peace of mind during their photo sessions. So, if one card gets damaged, you'll still have all your photos safely stored on the other one. With this setup, every picture you take is automatically saved to both cards. This allows you to select where you want to store your photos or use one card as a backup. The Z7 II camera has a significant improvement - it now has dual memory card slots. Although it's visually identical to the Nikon Z6 II in terms of design, we noticed some worthwhile differences when it came to image quality and functionality in our Nikon Z7 II review. The Nikon Z7 II tops our list, a few entries above its predecessor, the Nikon Z6 II. □ Nikon Z7 II Combines power, speed and precision with a simple interface and organized button layout in an attempt to master all trades - although it would be overkill for just astrophotography. ★★★★½
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