02-13-2014 02:39 PM
Hi, I have a question regarding ALO. I recently enabled it on my 1DX and have since noticed my shutter speed will automatically change slightly once in awhile (while shooting in manual with auto ISO.) For example: I set my shutter speed to1/60 and it will occassionally drop to 1/50 and then jump back to 1/60. I've checked the instructions but couldn't find anything regarding this. It only happens with ALO enabled.
02-13-2014 04:48 PM - edited 02-13-2014 04:59 PM
Are you sure it's not your safety shift feature that is doing it and ALO is just by coincidence? I'd suggest disabling all safety shift and try again to eliminate this possibility.
By the way, you do know that ALO is applicable to jpeg and not to RAW unless you are using DPP?
02-13-2014 05:05 PM
Thanks for the reply. It's not being caused from safety shift as I'm not maxing out the ISO. Does safety shift not only apply to Tv and Av mode?
I do know it just applies to JPEG. I generally just shoot RAW, but I wanted to test out ALO. That's when I noticed the changing shutter speed. It's really not a problem to me as I won't really be using ALO, but I'm rather curious if this is normal or not.
02-13-2014 05:44 PM
Doh...you're right no safety shift in M mode...my bad...
I have no clue...I don't use ALO. I don't have the 1DX but on my 5DIII in M mode, I could've sworn I've seen the shutter speed flutter a few times...that's why I was so sure it was the safety shift feature...I only confirmed today that there's not supposed to be a safety shift in M.
I'll have to watch for this again...it might be something else because I don't use ALO.
05/31/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.1.2
05/18/2023: New firmware updates are available.
EOS Rebel T100 - Version 1.1.0
EOS 5D Mark IV - Version 1.4.0
EOS 6D Mark II - Version 1.2.0
PowerShot Elph 360HS - Version 220.127.116.11
PowerShot SX420 IS - Version 18.104.22.168
PowerShot 620 HS - Version 22.214.171.124
PowerShot SX720 HS - Version 126.96.36.199
PowerShot G1X Mark III - Version 188.8.131.52
PowerShot G7X Mark II - Version 184.108.40.206
PowerShot G9X Mark II - Version 220.127.116.11
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
EOS 1DX Mark III- Version 1.7.1
Speedlite EL-1 - Version 1.0.2
03/30/2023: Product Advisory for EF50 F1.2 L USM
03/30/2023: Product Advisory for EOS R10
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.