Canon C70 vs C300MKIII Image Quality Comparison

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

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.

Buy a ribbon mic and use that to record your voice

Wow great test ! Thanks

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.

The DIT community thanks you for your service.

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

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!!

Did you made black balance after each profile change and after going into and back to slow and fast mode?

I've watched this 3 times.

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

buy Komodo instead,. better quality

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

Thank you.

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!

Very interesting.

c300 images makes me feel better

Pls how can I inbox u

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

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.

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

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!

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

I don't know if it is U_Tube or what but the cameras still look soft. This is coming from Broadcast people??

Such an awesome review. Much appreciated

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

Great information. Thanks.

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

The C70 is a fine cinema camera

Further to all of those very interesting color tests and your realizing that the differencies between the two cameras are neglectible, one major aspect for a final verdict was, from my viewpoint, left out: the viewer sense of imagery reality. The face of the woman on the C70 looks far more pleasant than the one on the C300. You don't need any spectometer or any complex digital tooling to see the difference. It's so obvious. See how the woman's face on the C70 shootings look narrower and more 3D like. That is shown on ALL shootings. The woman's face on the C300 looks so flat, no? Having in mind this absolute imperative aspect of what cinema impact is all about - how people look, and since color grading is just an after the fact technical adjusting, it looks like the C70 primary imagery rendering will be a no brainer decision as the logical option. Thanks God it costs half as much the C300.

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.

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.

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

If this wasn't a test, I'd call him picky 🤪

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!!

Would you trust the c70 as your main camera for a documentary ? Thanks for the review

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

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

DANCE BREAK!

Can I ask where you found the official Canon LUT?

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

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

C70

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

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?

Very strange sequence towards the end

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!