Home · Register · Join Upload & Sell

Moderated by: Fred Miranda
Username  

  New fredmiranda.com Mobile Site
  New Feature: SMS Notification alert
  New Feature: Buy & Sell Watchlist
  

FM Forums | Canon Forum | Join Upload & Sell
1      
2
       end
   

Archive 2023 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't B...
  
 
Jesse Evans
Offline
• • • •
Upload & Sell: On
p.2 #1 · p.2 #1 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
I shot indoors (silent) and outdoors (windy and a lot of noise). I tested every possible setting. I didn’t just jack the gain. Watch the video before making stupid comments about flowers.

The outdoor videos do not have any detectable focus motor noise, all you hear is the sound of you zooming the lenses in and out. Also, this just confirms what I was saying about the MKE 400 picking up any disturbance to the camera body.


Sep 20, 2023 at 11:10 AM
AmbientMike
Offline
• • • • • •
Upload & Sell: Off
p.2 #2 · p.2 #2 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Probably the last video I did of family was in a boat with the motor going. So it's not like any lens noises problematic in many situations. Are you interested in family stuff or more paid pro work?

I picked up an exterior digital voice recorder recommended to me on here to improve video quality years ago. I loaned it to a professional video guy yesterday. Not sure how many pros using the in camera sound, really, this guy used 360° camera and recorded to his phone it looked like, before having issues with it turning off and borrowing mine
Sep 20, 2023 at 11:20 AM
Gochugogi
Offline
• • • • • •
Upload & Sell: Off
p.2 #3 · p.2 #3 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Jesse Evans wrote:
The RF 24-70 f/2.8 is not ring USM, it is also nano USM and has the same audibility as the 24-105.

I'm aware the many fabled RF 24-70 f/2.8 is nano USM and, if you actually read my posts, I did not state it was ring USM (I mentioned that the RF 85 1.2L was ring USM). I merely related that the RF 24-105 L has a gained reputation of having slightly quieter operation than the RF 24-70 f/2.8. I personally doubt the small differences, if any, would be audible in the hands of a skilled audio production. If it doesn't work, you fix it. No whining on public forums unless you actually want help. As a musician, sound is extremely important to me and I learned long ago there always multiple workarounds for clean audio. One easy solution for static subjects—guitarists or family members on chairs—for those stuck with the poor preamps in the camera, is to tap focus where you want it on the LCD and disable servo. Of course you can't be shooting at F1.2 but I've shot hundreds of videos that way and it solved the problem of loud AF motors and wandering focus. And they were plenty sharp.
Sep 20, 2023 at 11:41 AM
Jesse Evans
Offline
• • • •
Upload & Sell: On
p.2 #4 · p.2 #4 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Gochugogi wrote:
I'm aware the many fabled RF 24-70 f/2.8 is nano USM and, if you actually read my posts, I did not state it was ring USM (I mentioned that the RF 85 1.2L was ring USM). I merely related that the RF 24-105 L has a gained reputation of having slightly quieter operation than the RF 24-70 f/2.8. I personally doubt the small differences, if any, would be audible in the hands of a skilled audio production. If it doesn't work, you fix it. No whining on public forums unless you actually want help. As a musician, sound is extremely...Show more →

Thanks for the clarification, I misinterpreted what you said :-)
Sep 20, 2023 at 12:25 PM
AmbientMike
Offline
• • • • • •
Upload & Sell: Off
p.2 #5 · p.2 #5 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


I got the digital voice recorder to get better video of a local choir (which never happened , maybe this year) but I'm not deluded enough to think that it would be as good as a pro having several higher quality mics, and perhaps more importantly, proper mic placement. Sound is probably as complicated as photography, or at least similar. Not sure how many people are relying on on board sound, really, seems to be a lot of add ons in general for video

Earlier this year I did a lot of audio recording of nature sounds, felt like it helped my audio skills a lot. But I'd I had the gain (?) turned up enough it picked up breathing, so I had to look out for that and hold my breath or something, had to breathe though . But I doubt that's going to be a problem in roomful of talking people at a family holiday gathering might be similar to your problem.

Apparently there's a big iPhone video competition, but I mean it's not exactly just someone holding up their iPhone and getting video. Auxiliary lenses, probably not on board sound, either. R5 is apparently inexpensive given 8k capability



Edited on Sep 20, 2023 at 12:55 PM · View previous versions
Sep 20, 2023 at 12:44 PM
RCH111
Offline
•
Upload & Sell: Off
p.2 #6 · p.2 #6 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Go rent a Sony, Nikon or Panasonic camera. Attach any relatively new first or third party lens. As expected for premium lenses in 2023... completely silent autofocus in any environment. No need to buy boom poles or lav mics, etc (unless you want to... I understand the need for pro audio equipment). You can simply pick up the camera and shoot with no issues whatsoever. As you should be able to. I understand there are a bunch of complex and expensive workarounds. That's not the point. The point is, why can all of these other lens manufactures make silent autofocusing lenses and Canon can't? Serious question.

I left Sony for Canon and thoroughly enjoy Canon cameras, their feel, functionality and image quality. However, it's pretty bad when their lenses sound like popcorn machines unless you drown out the noise with a noisy environment or buy a bunch of expensive audio equipment to record off-camera.

If no other lens manufacturers were making silent autofocusing lenses I wouldn't expect Canon too, either. But that's not the case.

It's just disappointing and I wanted to bring it to people's attention considering video and hybrid shooting is extremely popular these days. Hopefully it will help to inform people coming from other brands that they're for a bit of a surprise, before they spend $7500 on equipment.
Sep 20, 2023 at 12:50 PM
AmbientMike
Offline
• • • • • •
Upload & Sell: Off
p.2 #7 · p.2 #7 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
You can simply pick up the camera and shoot with no issues whatsoever.


Except inferior sound since using in camera mics.






Edited on Sep 20, 2023 at 01:03 PM · View previous versions
Sep 20, 2023 at 12:59 PM
Peter Figen
Offline
• • • • •
Upload & Sell: On
p.2 #8 · p.2 #8 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


iZotope RX is great to have in your digital audio tool kit.


Sep 20, 2023 at 01:01 PM
RCH111
Offline
•
Upload & Sell: Off
p.2 #9 · p.2 #9 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Here's a pretty good comparison - Watch from 06:10 to 07:10



Glass elements moving and ticking compared to complete silence.
This was my only point (and disappointment) from the beginning.
Everything else about Canon cameras and lenses have been fantastic.
Sep 20, 2023 at 01:03 PM
Gochugogi
Offline
• • • • • •
Upload & Sell: Off
p.2 #10 · p.2 #10 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


So you really didn't want help with a solution but simply came here (and other forums I noticed) to spank Canon. Canon just announced a full line of cinema lenses in RF mount. I'm sure the interior mechanics are smoother and quieter than your portrait optimized L lenses.
Sep 20, 2023 at 01:38 PM
RCH111
Offline
•
Upload & Sell: Off
p.2 #11 · p.2 #11 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


Just forget it. This is clearly over your head. That or you can't properly read.
Sep 20, 2023 at 01:43 PM
AmbientMike
Offline
• • • • • •
Upload & Sell: Off
p.2 #12 · p.2 #12 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


I suspect at least part of the problem is the gain getting turned up a lot on auto in a quiet room

I used a rebel to record bird calls. It did a really good job, I could record video of a fairly distant bird and use it to ID, based on call, later. But IIRC I got some odd camera sounds in there too, probably because it had to turn up the gain to get something fairly quiet, and picked up junk.
Sep 20, 2023 at 01:44 PM
Gochugogi
Offline
• • • • • •
Upload & Sell: Off
p.2 #13 · p.2 #13 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


AmbientMike wrote:
Apparently there's a big iPhone video competition, but I mean it's not exactly just someone holding up their iPhone and getting video. Auxiliary lenses, probably not on board sound, either. R5 is apparently inexpensive given 8k capability



I just saw some of the setups. iPhone in a cage mounted on a gimbal with adapters galore, manually focused cinema lens (!) and outboard audio. Looks to be more expensive than a Canon R5C. Heck, I just got a software update for Final Cut Pro and it included profiles for iPhone 15 log files.




Sep 20, 2023 at 01:45 PM
Gochugogi
Offline
• • • • • •
Upload & Sell: Off
p.2 #14 · p.2 #14 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
Just forget it. This is clearly over your head. That or you can't properly read.

I'm overjoyed I managed to jerk your delicate chain a wee bit.
Sep 20, 2023 at 01:47 PM
RCH111
Offline
•
Upload & Sell: Off
p.2 #15 · p.2 #15 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


I understand what you're saying but even with the gain at a minimum and the mic turned up, the noise is still very present once audio levels are adjusted in post.

Anyway. Thanks for the suggestions.


Sep 20, 2023 at 01:52 PM
AmbientMike
Offline
• • • • • •
Upload & Sell: Off
p.2 #16 · p.2 #16 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
I understand what you're saying but even with the gain at a minimum and the mic turned up, the noise is still very present once audio levels are adjusted in post.

Anyway. Thanks for the suggestions.


I think I managed to get noise from the IS even, if quiet enough that the (presumably auto) gain got turned up. But, I mean, gyros in the stabilization make noise afaik and if the gain gets turned up you can get noise, on probably any system, given the proximity of the on camera mic to the stabilization system.

But IS is pretty big deal with video and it's probably OK in most regular situations.

It doesn't look like the Sony 85/1.4 has OSS so it doesn't look optimized for hh video either. That FL might be a bit long to do easy hh video no attachments like you seem to be interested in.
Sep 20, 2023 at 01:59 PM
Jesse Evans
Offline
• • • •
Upload & Sell: On
p.2 #17 · p.2 #17 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
Here's a pretty good comparison - Watch from 06:10 to 07:10



Glass elements moving and ticking compared to complete silence.
This was my only point (and disappointment) from the beginning.
Everything else about Canon cameras and lenses have been fantastic.

I have both of these lenses, and the RF 50 1.2 is really noisy regardless.

I can see that you have a bone to pick beyond trying to solve the problem you supposedly have. So I'm going to let you continue to pick that bone.

I own a Sony A1, Sony A7rV, and Canon R5 currently. I record video regularly using both. The Sony lenses are indeed quieter than the Canon lenses, but neither show up at all in normal recordings. Even the quite noisy 50mm f/1.8 STM doesn't show up in video recordings when using a good mic like the Rode VideoMic NTG. The Sennheiser MKE 400 picks up all handling noises on the Sony cameras anyway, so the autofocus motors don't really end up mattering.
Sep 20, 2023 at 03:36 PM
Jesse Evans
Offline
• • • •
Upload & Sell: On
p.2 #18 · p.2 #18 · Canon RF 24-70F2.8 & RF 85 F1.2 Video Autofocus Noise - This Can't Be Normal...


RCH111 wrote:
I understand what you're saying but even with the gain at a minimum and the mic turned up, the noise is still very present once audio levels are adjusted in post.

Anyway. Thanks for the suggestions.

This is the fundamental issue, your "audio levels... adjusted in post".

In your indoor videos, you are taking audio in a very quiet environment, and then increasing the audio until barely audible noises that are quieter than the hum / noise of the microphone are amplified so much that your video is mostly full of microphone hum/hiss.

Your outdoor videos are much better because there is a louder ambient sound.

If you adjusted audio like you would for a normal video in which anything worth recording was happening, you would not notice the autofocus motors, they would be inaudible.

I previously did some digging on this exact subject. https://www.fredmiranda.com/forum/topic/1684814/0&year=2021#15484437
Sep 20, 2023 at 03:39 PM
1      
2
       end
FM Forums | Canon Forum | Join Upload & Sell

1      
2
       end
    
 

You are not logged in. Login or Register

Username       Or Reset password



This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.