I really appreciate how thorough you were with these tests! And yes, all Canon's transform luts are trash. I don't understand what's wrong with their quality control on that front

Thanks for the shout-out and was happy to have my cameras be put to the test! Learned a bunch from this video.

Best part is the guy dancing at the end. More of him in camera tests pls.

The lines of the vectroscope “opening up” with the .71 adapter means that it’s introducing more colors around it. The colors must be fringing a bit due to the adapter.

C70 owner here. Great video Chris - have sub'd. I have customised a button to switch quickly between 25 and 120 fps in certain circumstances - but could only find a way to do this if both are long-GOP. Although initially concerned about giving-up quality at 25 fps - real-world - I cannot see any difference between the codecs and am beyond impressed with the look and DR of this camera

This was the most thorough review of the C 300 and C 70 and you were even able to find out there the reasons for the Problems are. Another reviewer suggested to not use the Canon RF to EF adapter, but since i don’t have both Cameras i can’t prove or test his claim......definitely outstanding work

Thanks, Chris! I found it helpful to see where the c70 and c300 mkiii differ. Also, it is good to see you back! Would love to see more project breakdowns as well as industry tips/tricks. Keep up the awesome content!

The lines were fanning out because of chromatic abberation on the edges of the colour patches 😉

As an optician I think that's the reason: The Speedbooster lens has a coated surface to reduce reflection. It's impossible to reduce all refection, so the coating has the thickness to reduce mostly blue. Because of that, more red will enter the sensor. So we have to live with it, still better than no coating and losing light ;). Thanks for the test.

I think All-I vs LongGOP is a bit misunderstood where people are like All-I - good, LongGOP - bad. The data rate allocation is really important. All-I needs a much higher data ceiling to encode each frame with integrity. I don't know the actual figures (and it depends on how each format is implemented in any case) but you should be looking for data rates of around 4 times to 8 times higher for an All-I format to be outperforming an equivalent LongGOP one. On most camera systems the data rate afforded ALL-I, being only around twice the amount allocated to the LongGOP or so, is not enough to allow it to exceed the more efficient format. Generally speaking you should not expect to see an image quality increase using ALL-I (unless the data rate difference is very high). ALL-I can give big advantages with moving detail though, despite the results of your test here. It really depends how much stuff is actually moving in frame / how fast / etc. It's worth using when the content demands it.

This is really a very in-depth comparison i have ever seen for C70, C70+.71 booster, and C300MKIII... good work you have done!! Great thanks!!

A lot of work here! Thanks so much for sharing all this useful information! Proud to be your subscriber!

Thanks for taking the time to do this so thoroughly

Regarding All-I vs Long GOP, testing a shot where the tripod is locked and the subject/background is nearly identical, is not helpful to see the benefits of All-I. Remember, since little in the image is changed except for her slight lifting/turning of the model's head, then long GOP is great for this particular scenario. If, however, it were a busy shot like a camera moving on a steadicam through a detailed background environment like brick walls, a busy street, or even along the water, then one can see long GOP start to fall apart in compression compared to All-I. If all one is doing is filming an interview, for example, then long GOP is perfectly fine. Lots of movement & action, however, All-I would help.

Thank you for taking the time. This was very in-depth and very much what I do to test new cameras. I did have the c70 for few days but did not manage to do a chart based test for matching (only real world scenario with me standing in front). I think the C70 is an easy match to the C300MKII and EOS R5,R6 and EOS R as long as one uses custom WB on all cameras and choses the Neutral color matrix. Also good point that same sensor does not mean same processing... I think many get to caught up in the marketing lingo :D. As far as I know the beauty of Alexa, Mini and Amira is that they not only use the same ALEV III sensor but the processing is exactly the same ;).

The camera's data rates you're stating are mega "bits" per second (Mbps), NOT mega "bytes" (MBps.) Helpful video btw. Thanks!

Excellent, exhaustive comparisons - some great takeaways and tips for ALL videographers regardless of what camera you shoot.

Great job comparing and discovery relative to the importance of lenses. Thanks Chris

This confirmed many of the things I know but I’m very glad you made it

Whew. LOTS of work, LOTS of time. Thanks for your due diligence!

awesome video - insanely informtive not sure why more people havn't shown this comparison online with videos already - very eye opening

new to the cinema camera universe, but this was definitely interesting to learn about regarding issues with shooting and matching cameras, so thanks for making video.

Incredibly thorough tests. Amazing!

A lot of work here! Thanks so much for sharing all this useful information! Can’t wait for part 2! Proud to be your subscriber!

The DIT community thanks you for your service.

That was a deep dive! Thanks for the comparison.

Wow, there was a ton of noise in all of them for just being at the base ISO and lit. So much for DGO lol. The RAW looked much richer. Also really hate magenta, which the C70 has a ton of, I also noticed it didn't have as good of highlight rolloff when shooting outside next to the C300MKiii. I think Canon held back on the C70.

Absolute gold. I really appreciate these test. 🙌🏼

Hey Chris, thanks for this Comparison. It was very informative.

Great video Chris. Super detailed and well done. Thanks for sharing!

damn. even when watching a camera comparison I can still learn a ton

Great video!! I own both as well and was curious about this because I sometimes prefer the c70 to get the wider FOV with the adapter to not crop my lenses. One thing I would say about switching to lower bit rate though is be careful because this is a controlled light ideally lit kind of setting. The point of the data in my view is for when you have to push the footage harder in your grading for less ideal situations and broader exposure ranges. I think in any more challenging situations like that there might be more of a difference. I just wouldn't make a decision across the board based on this circumstance to change the bitrate like that. Thanks again!!

Great comparison! Just one fatal flaw at the end: on a mostly white backdrop, the 160mbps is going to be very similar to the 410mbps. You need to do a comparison that shows something like falling rain, waves, foliage, etc to see the difference and I bet it's pretty drastic!

It's 410 megabits, not megabytes. Difference is only 8 times

This is a great comparison! Thank you man!

Very thorough and helpful as I have both of these cameras. In practical terms for the work I do... the cameras match just fine. I might preset the C70 with a setting that brings the camera closer to the C300m3 but that's getting pretty deep into the camera nitty gritty. Like you say, different lenses probably have more effect.

Hi Chris, usually on KZfaq I can't see the differences with many testers results, but here I can. It might be even clearer on Vimeo which I understand has less aggressive compression. I'm surprised at the difference between apparently identical non cinematic lenses and the effect of the introduction of the 0.71 x glass was not something I'd have thought of either, so all in all a very useful and well presented lesson in colour balancing for an amateur film maker and thank you very much for all the trouble. A shout out to your talent Khrista as well and I do hope you are all safe and well. The dance interlude gave me a nice smile. Liked and subd. BobUK

Thanks mate, extremely useful now we have both

I forget if I commented on this video, but I love this video!

Great comparison.. Thumbs up too you.

Such an awesome review. Much appreciated

Great video. I picked up a C70 with the option of renting a C300iii for different projects as the need arises. Good to know it's not actually 1:1.

Great job on this Chris! Some solid info. Thank you.

Thank you for these great samples. Subscribed. I hear you about Long Hop Vs All-I - the only quality difference I've found in my work on XT'4s is the lower quality of life while waiting for All-I to download, backup or render. Cheers.

Hey Chris, congrats on the awesome video Thank you for creating such a great video

Amazing test, very thorough and I appreciate you took great and proper care at ensuring that the test was not biased towards any of the cameras. I’m in the market for my first cinema camera and I’m already 99% certain I’m getting this camera, so this was helpful!

You don't need to record for 30 minutes in order to black balance. Leaving the camera on for 20 min is enough to do the black balance. Good video.

Brilliant comparison + excellent video!! Would love to see some Canon R5 4K HQ thrown into some comparisons with C70 etc! :)

Chris: I thought same censor and same color science Canon: you just got played son. :D

Decide for me. I can’t decide if I should undergo the raw workflow on the c300 or just use the C 70. Help !

Loved this comparison! Been debating wether to get the C70 or C300mkiii and I feel Im good with C70! Thanks!

Informative! Great comparison really showing what is going on with the c70 and c300mk3. This video is simply ja cleverly put together. Amazing! Canon needs to get those transform luts updated asap.

Really thorough, I'll pass this video on to my guys.

Great research, helpful results!!! Subscribed ✔️

Just a note that the data rates are actually megabits, not megabytes - 8 megabits to 1 megabyte, thanks for doing the tests!

Fantastic test, lots of useful info for a DP

That is why it is recommended that if you need an exact camera match to order two of the same cameras directly one after the other at the same manufacturing facility bc these issues are not exclusive to different camera bodies.

Excellent comparison. Nice work!

Very nice and in depth! Seems that the c70 could be matched and balanced in camera using the color / phase adjustments. I'd be curious if the c70 matched the other c70 without the speedbooster. If you're thinking of long GOP recording, the HEVC long gop has way less macro blocking than the XF-AVC long gop because it's h265 encoding. Just harder to edit.

let's go safemoon, doge. i want me a c70. LOL

Excellent test!

TIGHT REVIEW!

The C70 just looks more contrasty. The C300 Mark 3 seems to have smoother color transitions in the tones.

The amount of time and effort in this test is crazy. Thanks so much! I can't afford any of these high end equipment just yet, but it's interesting to learn more. One question though, do you find the internal NDs of Canon to be kinda limiting? Correct me if I'm wrong but I think they're kind of like in fixed steps and not a internal VND like the FX6 or FX9 right? Would that be an issue that forces you to use non-native ISO in order to compensate for 1/3 stop differences that the fixed internal NDs might not cover? Oh, and you might have gotten Mbps and MBps confused.

5:15 Chromatic aberration is quite obvious with the 0.71x adapter.

Now that's a real test 👍 Brilliant, thank you.

Thanks for the thorough review. Question: for the Long GOP (I think that's what you called it?) codec, how does that format perform in Premiere when editing compared to RAW? Do you have to make proxies to make it usable when scrubbing/playback on the timeline?

Nice Video! But the chromatic aberration with the speedbooster does not look good. Do you think it's coming from the lens or the adapter?

That's an outstanding job! Thank you so much!

Thanks! Would like to see an update including the C70's raw :)

Wow great test ! Thanks

Gracias por ofrecer más claridad sobre estas dos cámaras , Justo estoy en el proceso de comprar una de las dos

I'm new to filming and would like to be your student. I like this video a lot.

Very detailed comparison. I wonder how the standard canon EF-RF adapter would compare to the changes seen in the 0.71 adapter.

Curious, why didn’t you just white balance the cameras to your color card? This would have solved the majority of the discernible differences between the cameras - even the lens variable.

I really admire the work that you put in here. However it would’ve been very helpful if you could also test how the speed booster affects the image quality in terms of details and chromatic aberration, etc. Thanks

You will only see a difference between All-I and Long Gop in a more stressful situation for the codec. A static shot with a plain background is the best situation for long Gop 😊 It might be different if you follow a Mountainbike through the woods.

Great content ! Very informative

Is it just me or does the rendering of the face look slightly different between the c300 and c70. like blockier on the c70

Really good video thanks for putting this together. So essentially, your paying nearly double for an EVF, bigger touchscreen and the form factor. Colour is negligible on the grand scheme of things.

Why did you wait for 30 minutes before running the auto black balance?

Great informative video.

Really appreciate this, Chris. Wonderful test. Is there more information regarding the color matrix options. I didn't even know about those settings. How do they impact the image?

Love this thank you.

This was helpful bud. I'm a C70 fanboy.

I love all the tests but I am also really interested in the lighting setups as well. Any chance you could do a video deconstructing the setup with the girl reading a book? The decision to use an 8x8 bounce vs a large umbrella for example. Thanks!

Amazing video! Thanks for this! Curious why you chose the 65 version of the luts instead of 33? I was under the impression 33 was for 10 bit footage while 65 was for 12 bit? Also thanks to your patient model! My fiancé hates posing for my own camera tests! 😃

Very good comparisons

I was literally JUST going through the same annoyances with the CLOG2 to rec709 LUT. It does make it darker for sure, and kinda clips the blacks. Maybe this is one of those scenarios where we need to overexposed by a stop when shooting CLOG2?

So helpful, thank you!

Great information. Thanks.

Thank you so much Chris for putting the work in! Really great insight into the camera. I had a few thoughts, let me know what you think. Please forgive me if I make a mistake, I'm just trying to understand : D - about the Luts, I noticed you used the 65 grid luts. What difference when using the 33grid luts? I heard from somewhere that it should be 33grid for 10bit, but I could be wrong : O - also about the long gop, in scenes that have big shapes and simple detail, you might not see so much artifacting. Your model's hair was good too even in 120fps. In my experience, I only really see a clear difference if the scene is super detailed, like leaves blowing in the wind as it is raining : D let me know if you have encountered any situations where you have encountered problems. It is definatly great 120 FPS though : D Have a great day and thanks again!

정성스러운 영상 입니다 고맙읍니다

wait. I think you mistook MB and Mb, 1MB=8Mb

Did Canon in fact update its look-up-tables?

The sensor is only half of it. How the camera uses that sensor matters. Many cars share the same engine, but how you tune that engine can produce double the power

Super helpful, thank you.

Your video is very helpful and just makes me wonder why spend the money on the C300 if C70 is just as good?

Thank you.

I wish they had some IS on that C70 body...