Canon EOS R5 Unite and Discuss!

I was having dinner up at the top of the Stratosphere in Las Vegas. Of course I brought my camera for aerial night shots.

Eating dinner by a window, I set my camera bag on the floor by my chair, nearest the window. Well, the restaurant rotates. Where my camera was sitting, does not. Then I see someone walking around with my bag containing about 10k worth of gear.. Panic mode, and I'm getting ready to tackle the guy. Before I get to him he hands the bag to a waiter.

Whew! An honest person!

abacus022 wrote in post #19319466
I was having dinner up at the top of the Stratosphere in Las Vegas. Of course I brought my camera for aerial night shots.

Eating dinner by a window, I set my camera bag on the floor by my chair, nearest the window. Well, the restaurant rotates. Where my camera was sitting, does not. Then I see someone walking around with my bag containing about 10k worth of gear.. Panic mode, and I'm getting ready to tackle the guy. Before I get to him he hands the bag to a waiter.

So then you proceeded to tackle the waiter....

I'm wondering users' preferences when setting the Initial Servo AF pt. And, did your setting change after updating to 1.5? Thanks for your responses.

For BIF, I moved to AUTO AFTER updating to 1.5.0.

steveb108 wrote in post #19320016
I'm wondering users' preferences when setting the Initial Servo AF pt. And, did your setting change after updating to 1.5? Thanks for your responses.

It has always been set to Auto since it's the only option that allows the pre-focus white box for Eye-AF detection to show up in servo mode.

abacus022 wrote in post #19319466
I was having dinner up at the top of the Stratosphere in Las Vegas. Of course I brought my camera for aerial night shots.

Eating dinner by a window, I set my camera bag on the floor by my chair, nearest the window. Well, the restaurant rotates. Where my camera was sitting, does not. Then I see someone walking around with my bag containing about 10k worth of gear.. Panic mode, and I'm getting ready to tackle the guy. Before I get to him he hands the bag to a waiter.

Whew! An honest person!

That was close.

I’m using Auto as well.

steveb108 wrote in post #19320016
I'm wondering users' preferences when setting the Initial Servo AF pt. And, did your setting change after updating to 1.5? Thanks for your responses.

I just have it in Auto because I cannot see any functional difference between all 3 settings, TBH

I'm having major exposure issues using the Sigma 35A f/1.4 with this camera.

For some reason this lens is making my R5 meter incorrectly. It's consistently about 3-stops underexposed and I can't figure out why. Oddly, when I half-press the shutter button to AF, the image briefly brightens on the screen to proper exposure, and once focus is locked, it's back to 3 stops underexposed. This is happening in all shooting modes and all metering modes. If I manually increase exposure compensation and take the pic, the image is recorded at proper exposure.

I have already played with the lens correction setting for peripheral illumination, CA, distortion, etc. I've disable and enabled all, and went through every on/off combination between them all. (Peripheral illumination correction needs to stay off otherwise I end up with black rings in the image...this was also the case on the 5D3 and 5D4).

mannetti21 wrote in post #19320378
I'm having major exposure issues using the Sigma 35A f/1.4 with this camera.

For some reason this lens is making my R5 meter incorrectly. It's consistently about 3-stops underexposed and I can't figure out why. Oddly, when I half-press the shutter button to AF, the image briefly brightens on the screen to proper exposure, and once focus is locked, it's back to 3 stops underexposed. This is happening in all shooting modes and all metering modes. If I manually increase exposure compensation and take the pic, the image is recorded at proper exposure.

I have already played with the lens correction setting for peripheral illumination, CA, distortion, etc. I've disable and enabled all, and went through every on/off combination between them all. (Peripheral illumination correction needs to stay off otherwise I end up with black rings in the image...this was also the case on the 5D3 and 5D4).

have you updated the lens' firmware?

BirdsofBC wrote in post #19320396
have you updated the lens' firmware?

It was the first thing I did before ever attaching the lens to the camera.

mannetti21 wrote in post #19320397
It was the first thing I did before ever attaching the lens to the camera.

I didn’t know you could do that. I thought it had to be attached. I haven’t done that many FM updates.

digital paradise wrote in post #19320402
I didn’t know you could do that. I thought it had to be attached. I haven’t done that many FM updates.

With third-party lenses, you pretty much have to, AFIK. Sigma has a USB Dock and Tamron the Tap-In Console. Not sure if there are any other options for those lenses. Canon lenses, on the other hand, I've only updated connected to the camera.

mannetti21 wrote in post #19320378
I'm having major exposure issues using the Sigma 35A f/1.4 with this camera.

For some reason this lens is making my R5 meter incorrectly. It's consistently about 3-stops underexposed and I can't figure out why. Oddly, when I half-press the shutter button to AF, the image briefly brightens on the screen to proper exposure, and once focus is locked, it's back to 3 stops underexposed. This is happening in all shooting modes and all metering modes. If I manually increase exposure compensation and take the pic, the image is recorded at proper exposure.

I have already played with the lens correction setting for peripheral illumination, CA, distortion, etc. I've disable and enabled all, and went through every on/off combination between them all. (Peripheral illumination correction needs to stay off otherwise I end up with black rings in the image...this was also the case on the 5D3 and 5D4).

This is odd. I don't have the Sigma 35A (I got the Tamron 35), but have the Sigma Art 24, 28, 40, 50, 85, 105 and 135. All of them work beautifully on my R5.

You already seem to have done all the steps I would take: Camera FW, Lens FW, disable all in-camera corrections. Shooting modes, metering modes, etc shouldn't matter too much (except maybe spot), and you've tried them all.

You could try resetting or reflashing the FW on the lens. Perhaps take a look at the lens setting using the Sigma dock and reset them. For example, turn off the Full-Time MF Setting. That is a recommendation for non OS lenses from Sigma (though they only mention interractions with IBIS):

https://www.sigmaphoto​.com …gma-lenses-with-canon-r5/

I'd try fiddling a bit more with that and if it doesn't work then try to reflash the FW on the lens. Do you have other Sigma Art primes? Do they work normally?

I'd be much more reluctant to mess too much with the R5, and honestly, I wouldn't venture into messing around with the camera FW unless I had the same issue with at least one other lens. That said, you could do the same with the R5. Save your settings to an SD card and then reset everything to see if there is an improvement. Perhaps it was an obscure setting in the camera you hadn't thought of. If that fixes it, then just go through the process of re-entering your preferred settings one by one, or if not just copy back the settings from the SD card. As a last resort (I would need to have issues with many lenses to even think of trying this), you could try to re-flash the FW on the R5.

Hope you find the issue. Let us know.

digital paradise wrote in post #19320402
I didn’t know you could do that. I thought it had to be attached. I haven’t done that many FM updates.

Sigma has a USB lens dock that connects to the EF mount of the lens. I actually don't recall ever updating any Canon lens firmware in the past; didn't know it was possible.

PinholeR5 wrote in post #19320457
Hope you find the issue. Let us know.

I was growing more and more frustrated. I haven't set up many custom settings on the R5, and considering the R5 is still under warranty, I decided to tinker. I restored the R5 to factory settings and installed old firmware. Didn't work.

Reinstalled lens firmware and tried again on the "factory" R5 settings. Didn't work.

Upgraded R5 firmware to 1.3.1. Didn't work.

Upgraded to 1.4 firmware. Didn't work.

Tried one last reinstallation of the lens firmware. Suddenly the lens is playing nicely with the R5.

Based on that sequence of events, I have to believe the lens firmware didn't install clean for whatever reason. I'm happy I don't have to get rid of this lens. I'm not sure how it compares with the RF 35 f/1.8, but I've always felt the 35Art was the best value of all the 35mm offerings. Crisis averted.