You should post in r/Cameras , we’re obviously gonna recommend Canon. Also RF cameras can still use third party lenses with an EF-RF adapter. Tamron and Sigma fit EF mounts Answer from Deleted User on reddit.com
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Reddit
reddit.com › r/canon › canon r8 vs sony a7iii
r/canon on Reddit: Canon R8 vs Sony a7iii
July 9, 2024 -

I'm looking to upgrade camera bodies plus lenses (have been shooting with a Canon EOS 5D Mark II + EF 50mm f/1.8 lens for the last 8 years). I shoot primarily candids, portraits, and street/travel photography (attaching some pics) – not professional, but proficient enough that I wouldn't consider myself entry level. Some video, but that's not my main focus.

Obviously, want to upgrade to mirrorless. Have narrowed down the Canon R8 and Sony A7iii. I'm familiar with a lot of the pros (price, system) and cons of the R8 (battery life, one memory card, no IBIS) + Sony a7iii (better battery, 2 cards, IBIS, good low light, but a little pricier, maybe not as great colors). Several Best Buy employees that I've spoken with have recommended the R8 since I'm familiar with Canon. One concern that I have is that maybe it's too entry level. Also, since I'll be upgrading lenses (from EF to RF) I don't feel married to it. I've gotten to mess around a little bit with an R8 (nice and light) but not the a7iii.

For people that have experience with both, which do you prefer? What are caveats you'd give? Based on my usage / photo needs, is one better?

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RTINGS
rtings.com › home › camera
Sony α7 III vs Canon EOS R8: Which Camera Is Better? - RTINGS.com
February 8, 2021 - The Canon is newer, so its video specs are more up to current standards, and it's a more portable model. However, the Sony feels better built, has a better battery life, and includes dual SD card slots.
Discussions

Canon R8 vs Sony a7 iii – Camera, Lens, and Equipment Buying Advice – Photography Life Forum
Which camera is great value for money, canon R8 or Sony a 7iii. In year 2024 there is Canon sale LIVE in which R8 is available for 1 lakh rupees and a7iii is for 1,24,000/- rupees. More on photographylife.com
🌐 photographylife.com
Canon R8 vs Sony A7 III — Which One Would You Pick and Why?
You should post in r/Cameras , we’re obviously gonna recommend Canon. Also RF cameras can still use third party lenses with an EF-RF adapter. Tamron and Sigma fit EF mounts More on reddit.com
🌐 r/canon
50
5
July 2, 2025
Canon R8 vs Sony A7III
There's always something new that's just come out -- and something even newer on the horizon. Last month's hotness was the Panasonic Lumix S5II (it's still pretty hot, actually). Now it's the R8. Next month Nikon, or Fuji, or Sony, or somebody, will drop their 'R8 killer', and the cycle will roll on. Sooner or later you just have to switch off your greener-grass detector and actually buy something. More on reddit.com
🌐 r/videography
25
9
April 20, 2023
Sony Alpha A7 III vs Canon R8
If your shooting video the R8 has much better specs. For photos it's a closer comparison. The R8 is going to have better AF. The a7iii has dual card slots, a larger body but most importantly more lens options at more price points. I'd personally go for the a7iii as having lens options is super important More on reddit.com
🌐 r/Cameras
10
6
December 14, 2023
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Camera Decision
cameradecision.com › compare › Canon-EOS-R8-vs-Sony-Alpha-A7-III
Canon R8 vs Sony A7 III Detailed Comparison
Canon R8 has external dimensions of · 133 x 86 x 70 mm (5.24 x 3.39 x 2.76″) and weighs · 461 g (1.02 lb / 16.26 oz) (including batteries). Sony A7 III has external dimensions of
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VERSUS
versus.com › home › camera comparison › canon eos r8 vs sony alpha a7 iii
Canon EOS R8 vs Sony Alpha a7 III: What is the difference?
November 1, 2018 - This Small Light weight camera has most of what the R8 Mark II has, with the added bonus of outstanding Video options. The Auto Focus is insane, it's ability to track multiple people by both left and right eyes, even playing sports.
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Apotelyt
apotelyt.com › compare-camera › canon-r8-vs-sony-a7-iii
Canon R8 vs Sony A7 III Comparison Review
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 III is notably larger (7 percent) than the Canon R8. Moreover, the A7 III is substantially heavier (41 percent) than the R8.
Find elsewhere
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Photography Life
photographylife.com › forums › general › camera, lens, and e...
Canon R8 vs Sony a7 iii – Camera, Lens, and Equipment Buying Advice – Photography Life Forum
The two cameras are on a pretty similar level overall. Both are highly capable. If any of those features stands out to you, that should make your decision easy. If not, I would simply get the one that is less expensive, which in this case is the EOS R8.
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Reddit
reddit.com › r/canon › canon r8 vs sony a7 iii — which one would you pick and why?
r/canon on Reddit: Canon R8 vs Sony A7 III — Which One Would You Pick and Why?
July 2, 2025 -

I’m deciding between the Canon R8 and the Sony A7 III, and both have clear strengths and weaknesses depending on how you look at them. I’d love to hear from people who have used either (or both) in real-world situations.

Here’s how I’m thinking about the tradeoffs:

Canon R8:

  • Newer sensor and autofocus system (Dual Pixel AF II)

  • Ridiculously fast electronic burst (40 fps)

  • Lightweight and compact body

  • No IBIS

  • Very limited third-party lens options (RF mount is closed)

  • More expensive lens ecosystem overall

  • Shorter battery life

  • No mechanical shutter at high speeds (can cause rolling shutter issues for fast action)

Sony A7 III:

  • Older AF system but still solid for most use cases

  • Has IBIS (big plus for handheld shooting)

  • Access to a huge library of third-party and used lenses (Tamron, Sigma, etc.)

  • Better battery life

  • Menus are clunky and less intuitive

  • Color science has a mixed reputation, though some say it’s a non-issue with RAW

  • Slightly heavier and bulkier body

  • Limited video specs, but that’s not a huge concern here

If you’ve used either of these cameras for travel, landscape, or wildlife (especially with 3rd-party lenses), I’d love to hear what pushed you in one direction or the other. Any real-world quirks, limitations, or “I wish I had known this before buying” insights are super appreciated.

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YouTube
youtube.com › voltage vendetta
Canon EOS R8 vs Sony A7 III: Which Mirrorless Camera is Right for You? - YouTube
Canon EOS R8 - https://geni.us/0zW9XSony A7 3 - https://geni.us/M7np1 Canon R8 vs Sony A7 III: Which Mirrorless Camera is Right for You?Are you torn between ...
Published   August 5, 2024
Views   3K
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DigicamDB
digicamdb.com › compare › canon_eos-r8-vs-sony_alpha-a7-iii
Canon EOS R8 vs. Sony Alpha A7 III - Sensor Comparison
JavaScript is required to access this website · Please enable JavaScript and disable any ad blockers or browser extensions that may interfere · Loading… · Please wait while we verify you're not a bot…
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Camspex
camspex.com › comparison.php
Canon EOS R8 vs. Sony Alpha 7 III - Camera Comparison
Comparison of the Canon EOS R8 and the Sony Alpha 7 III. Compare sensors, physical characteristics, image quality, autofocus systems, real viewfinder size and more.
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PXLMAG
pxlmag.com › db › camera-compare › Canon-EOS-R8-vs-Sony-Alpha-A7-III
Canon R8 vs Sony A7 III In Depth Comparison - PXLMAG.com
Canon’s body measures 133x86x70mm, sporting a traditional SLR-style mirrorless shape with carefully softened corners that nestle well in the hand without requiring the most massive grip. Meanwhile, the Sony A7 III’s 127x96x74mm frame feels a bit chunkier, but with a well-contoured grip offering reassuring heft and balance, especially when paired with larger lenses. The R8’s lighter body favors portability without sacrificing control – it’s an approachable design for enthusiasts needing a dependable full-frame without extra bulk.
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Sony Alpha Rumors
sonyalpharumors.com › home › news › comparing the new canon r8 with the sony a7iii and a7ii
Comparing the new Canon R8 with the Sony A7III and A7II | sonyalpharumors
February 10, 2023 - Sony has no direct competitor against it: The A7II is way more expensive and the A7II is cheaper but also technologically "older". What do you think, should Sony make a sort of A5 entry level FF
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zShop
zshop.vn › blogs › sanh-canon-r8-vs-sony-a7-iii.html
So sánh Canon R8 vs Sony A7 III - Blogs các sản phẩm công nghệ zShop.vn
May 5, 2023 - Hai máy ảnh đều có cảm biến có tốc độ xử lý đủ nhanh để chụp chuyển động, nhưng R8 cung cấp tốc độ khung hình cao hơn A7 III. Chiếc máy của Canon quay video ở 4k/60p, trong khi của Sony chỉ ...
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Reddit
reddit.com › r/cameras › canon r8 vs sony a7 iii — which one would you pick and why?
r/Cameras on Reddit: Canon R8 vs Sony A7 III — Which One Would You Pick and Why?
July 2, 2025 -

I’m deciding between the Canon R8 and the Sony A7 III, and both have clear strengths and weaknesses depending on how you look at them. I’d love to hear from people who have used either (or both) in real-world situations.

Here’s how I’m thinking about the tradeoffs:

Canon R8:

  • Newer sensor and autofocus system (Dual Pixel AF II)

  • Ridiculously fast electronic burst (40 fps)

  • Lightweight and compact body

  • No IBIS

  • Very limited third-party lens options (RF mount is closed)

  • More expensive lens ecosystem overall

  • Shorter battery life

  • No mechanical shutter at high speeds (can cause rolling shutter issues for fast action)

Sony A7 III:

  • Older AF system but still solid for most use cases

  • Has IBIS (big plus for handheld shooting)

  • Access to a huge library of third-party and used lenses (Tamron, Sigma, etc.)

  • Better battery life

  • Menus are clunky and less intuitive

  • Color science has a mixed reputation, though some say it’s a non-issue with RAW

  • Slightly heavier and bulkier body

  • Limited video specs, but that’s not a huge concern here

If you’ve used either of these cameras for travel, landscape, or wildlife (especially with 3rd-party lenses), I’d love to hear what pushed you in one direction or the other. Any real-world quirks, limitations, or “I wish I had known this before buying” insights are super appreciated.

  • Budget: 1,000-1,200 for the body

  • Country: USA

  • Condition: I would consider used

  • Type of Camera: Mirrorless

  • Intended use: Photography

  • If photography; what style: Wildlife and landscape

  • What features do you absolutely need: Weather sealing is definitely high on my needs but not the deciding factor.

  • Portability: I should be able to keep it in a large backpack

  • Cameras you're considering: Canon EOS R8 and Sony Alpha a7 iii

  • Cameras you already have: Canon Rebel T6

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TikTok
tiktok.com › discover › canon-r8-vs-sony-a7iii
Canon R8 Vs Sony A7iii | TikTok
October 20, 2025 - Watch more: @Anthony Gugliotta #canoncamera #Cameragear #techtok #Canon #CanonR8 #mirrorlesscamera #learnphotography #AGphotog ... When two cameras have more similarities than differences, it can be tough to choose between them.🤔 In this video John is getting technical, exploring what makes the Sony A7III and Canon R6 unique, to help you decide which would make a better addition to your kit.