Sony Alpha DSLRA850 24.6MP Digital SLR Camera (Body Only)

Sony Alpha DSLRA850 24.6MP Digital SLR Camera (Body Only)

Sony Alpha DSLRA850 24.6MP Digital SLR Camera (Body Only)

  • 35mm, full-frame 24.6-megapixel Exmor CMOS image sensor; SteadyShot INSIDE in-camera image stabilization
  • Body only; lenses sold separately
  • Dual BIONZ processors for up to fast 3fps performance; 9-point AF system w/ additional 10-point assist
  • Rugged magnesium alloy shell; dust/moisture-resistant design
  • Dual card slots; accepts both CompactFlash and Memory Stick Duo Media (not included)

Packed with innovative features to get the best shot, the rugged Sony A850 DSLR camera features a 35mm full frame 24.6 megapixel Exmor CMOS image sensor that provides a larger capture area, improved wide angle performance, and tighter depth of field control. The A850 also incorporates SteadyShot INSIDE in-camera image stabilizer which actually shifts the image sensor to compensate for camera shake without sacrificing image quality. Additional features include Dual BIONZ imaging processors for continuous shooting at up to 3 fps, an ultra-bright glass pentaprism viewfinder, 3.0-inch Xtra Fine LCD display and HDMI output.

Ultra-Fine Images
The camera’s Exmor CMOS sensor delivers the photographic expressive power of wide angles and perspective that only a 35 mm full-frame sensor can offer, and is designed to take advantage of the resolving power of high-precision alpha lenses. Its high pixel count and large size provide enhanced image detail and a wider dynamic range for natural color reproduction and subtle tonal gradations.

Image processing gets a boost in speed and power from two BIONZ processing engines. Large amounts of data captured by the 24.6-megapixel sensor can be quickly processed to achieve a fast shooting response. Additionally, this dual BIONZ system applies advanced noise reduction algorithms producing images of exceptional quality and detail, especially at high ISO sensitivities.

The camera’s innovative intelligent preview function takes the guesswork out of setting up a shot and the hassle of taking multiple shots to achieve a desired effect.

After pressing the depth of field preview button, the camera grabs a RAW preview image which is processed and displayed on the LCD screen. You can then fine tune white balance, determine the best level and effect of dynamic range optimization, adjust exposure compensation and check histogram data, all before you actually take the picture. Preview images are not recorded on the camera’s


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  1. Reply
    J. Smith July 29, 2016 at 11:02 pm
    85 of 87 people found the following review helpful
    4.0 out of 5 stars
    Great full-frame camera, January 18, 2010
    J. Smith

    This review is from: Sony Alpha DSLRA850 24.6MP Digital SLR Camera (Body Only) (Electronics)

    The Sony A850 is an awesome camera, as long as you know what to look for in a camera system. You just aren’t buying the body, you have to buy the glass 🙂
    That said, when I was deciding to move up to full frame, I had to make a decision: Did I stick with Nikon, or try Sony? Well, I went with the A850 and I’m glad I did. It’s a great camera.
    I got myself the A850, the Carl Zeiss 24-70 f/2.8, and the Sony 70-400G and 58AM flash. Although the review covers the camera, realize I’m using these items with the body.


    Solid feel throughout, with a very positive grip on the right. Command wheels “click” firmly, unlike cheaper builds that will be accidentally turned. Viewfinder is awesome, big, bright. Most buttons are within easy reach, except the ISO and WB buttons on the upper-right. I also don’t like the optical preview button orientation (I prefer to press the button towards my body instead of inward towards the lens), but a small niggle. Once you pick up the A850, you know you’re holding a solid piece of machinery. CF & battery doors seem to lack any sealing, so I’d be hesitant to take this out in any more than a very light drizzle. Rubber covers on the ports of the camera are very well-designed and actually hinge out, as opposed to flopping around like almost every other camera on the planet. CF door opens and stops at 90 degrees to the camera body – more is needed, as it makes getting out a CF card too hard for larger fingers.


    Overall, it’s a camera that just gets out of your way, which is a compliment. First, some quibbles: There’s no ISO listed in the VF display unless you’re in the process of changing it. The AF points don’t cover as much as the frame as I’d like (common complaint among FF DSLRs). Mirror slap is a noticeable “THUNK-THUNK”, so don’t think you’ll be taking spy pictures with this any time soon.

    Onto a couple of more important gripes:
    No onboard flash, which really hurts for not having wireless flash triggering built-in. There is no “AF-ON” button like you find on Canon or Nikon bodies – Instead, Sony uses a button that can be used to toggle AF/MF, or switch to a central focus point, etc. but nothing exactly like the AF-ON operation from other cameras. Finally, using the “Quick-Navi” to change settings is a bit annoying, in that you can’t change multiple settings at once – you have to reenter Quick-Navi each time. Not really time-consuming, as the button is right near your right thumb, but annoying. EDIT – Silly me! You can change multiple settings at once, after entering Quick-Navi mode, by using the front/rear wheels to adjust your settings, instead of the joystick. No longer a complaint!

    Now the good stuff: The camera just works 🙂 I love the SteadyShot meter in the VF, which shows you relative camera shake and lets you take a shot with minimal shake. Although I miss AF-ON, I do like AF-MF quick button, which lets me quickly take over focus when I need to. I also like the way the camera will illuminate AF points when you’re in AF-C mode and using “Wide” AF points (the camera chooses the AF points). AF speed is adequately fast, though it can have trouble in very dim lights.


    Ultimately, the reason I bought into Sony. The image quality is amazing. Colors are outstanding. Detail is definitely there. I can crop for days and still end up with a large, high-detail file. I can (and do) print large, which was a deciding factor over the D700 (I did not consider the 5DII, as I dislike Canon controls).

    I was initially really worried about the noise of the camera, that is until I read a blog from a wedding photographer that had recently switched to Sony. He gave good advice – Look at your images and really see if you *need* high ISO. I think high ISO has become the want-all, end-all criteria for buying a camera body, which is a shame. How about image quality? Ergonomics? Value? Lots of things to consider, although high ISO is nice to have.

    For me, up to ISO 1600 is fine, and a well-exposed ISO 3200 looks pretty good. Interestingly enough, I’ve actually found myself almost completely ignoring luminance NR and only applying small amounts (15% slider in Lightroom 3) of chroma NR and images look very good! Maybe it’s because of the “film-like” quality, but I actually enjoy having some grain in my images.

    Also, the camera seems to underexpose anywhere from 0.3 to 0.7 EV – knowing to do a little ETTR really helps with noise and IQ in general.
    EDIT – Camera no longer seems to underexpose after I switched my ‘style’ “Zone” setting to -1, which tells the camera don’t worry so much about blown highlights when you’re metering (even with RAW) – Camera now exposes how I would expect, and I don’t to use a permanent exposure compensation!


    Overall, a great camera (system). I like…

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  2. Reply
    William P. Rowland July 29, 2016 at 11:29 pm
    37 of 38 people found the following review helpful
    5.0 out of 5 stars
    Great camera, February 6, 2010
    William P. Rowland (atlanta, ga) –

    Verified Purchase(What’s this?)
    This review is from: Sony Alpha DSLRA850 24.6MP Digital SLR Camera (Body Only) (Electronics)
    I’ve had the chance now to use this camera for over a month and I love it. I have the 85 f/1.4 zeiss lens attached to it for portraits / weddings, and it gets the job done–the resolution is amazing. I will hopefully be adding the 16-35 or 24-70 later this year. Some make a big deal about this camera having high iso ‘issues’, but they are mistaken. I prefer natural light and have gone up to ISO 3200 without complications–using nik dfine’s noise reduction software only makes it better! I also have used flash in order to lower my iso and deliver great imagery.

    The camera feels solid and has some weight to it with good glass. The shutter noise is very distinct, but that is to be expected with such a large mirror. In-body stabilization is as advertised and is incredible–I’m able to get crisp, hand held shots at 1/15 s with an 85 mm lens.

    I’ve always been told that with anything involving optics, you will never go wrong with the system with the best glass, and I believe Sony is the leader by offering zeiss lenses. Yes–they don’t have all of the different lenses that Canikon offers, but 99% of my work is done in the 16-200 mm range, and they offer amazing lenses for that focal length range (I guess I could go even longer-twss-with the 400 mm G series lenses they offer).

    Get this camera if you’re looking for a well-built machine that can deliver professional images. Full frame for less than $2000 = awesome.

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