05-17-2023
04:47 PM
- last edited on
05-18-2023
08:49 AM
by
Danny
I own a canon eos rp and just bought a sigma 24-70 f2.8 dg os hsm lens with R-Ef mount adapter. Now i have a problem that i cannot diagnose. The problem is that when the camera is turned off and on a few times the lens somehow stops the camera from turning on but when i just spin off the lens to remove it without removing it and spin it back on the camera turns on immediately. This is also solved when i take the battery out and put it back in. Do it need a firmware update or the lens contact points are at fault because this does not happens with an older 50 mm f1.8 lens the camera works great no lags whatsoever. So plz help me with some suggestions
05-17-2023 04:56 PM
Sounds like a lens problem. You might see if Sigma has updated software.
05-17-2023 10:23 PM
I agree with my colleague - if you want to look at solutions, you need to contact Sigma, not Canon. Like every other camera maker, Canon does not offer support (including firmware) for 3rd party lenses - you purchase them at your own risk. However, I suspect you will discover that Sigma makes no warranty for the use of their EF lenses on the R-series bodied either - they certainly have said as much for others in their lens lineup.
05-18-2023 12:50 AM - edited 05-18-2023 08:12 AM
Greetings,
Did you buy the Sigma lens new?
Is the EF > R adapter Canon brand?
I have this lens, and have used on both a 6D2 and R5 C with a Canon adapter. Focus is a little slow in Cinema mode on the R5 C, (which you don't have) but in stills mode, the lens functions flawlessly.
There is no FW available that addresses function with the RP. However, v2.03 might help you. Try turning OS off. Power the camera on and off. If this works, I'd try v2.03. If you live near SF I have a dock. 😉
2019.12.19
The firmware will improve the AF performance when used in combination with the SIGMA MOUNT CONVERTER MC-21 EF-L.
2019.03.14
2018.10.02
It has improved the stability of the image in the viewfinder, making it easier to confirm composition, thanks to the updated control algorithm of the Optical Stabilizer.
2018.06.12
It has corrected the phenomenon that the continuous shooting speed of some SIGMA interchangeable lenses with firmware Ver.2.00 decreases in certain combinations with some cameras.
2018.03.07
Compatible cameras:
EOS 1D X mark II, EOS 5Ds, EOS 5Ds R, EOS 5D mark IV, EOS 6D mark II, EOS 8000D(EOS Rebel T6s, EOS 760D), EOS 80D, EOS 9000D(EOS 77D), EOS Kiss x9i(EOS Rebel T7i, EOS 800D), EOS Kiss x9(EOS Rebel SL2, EOS 200D), EOS Kiss x8i(EOS Rebel T6i, EOS 750D)
Sigma actually does claim support for their Global Vision Lenses (Contemporary, Art and Sport), but we know this isn't 100% accurate.
~Rick
Bay Area - CA
~R5 C (1.0.7.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It
07/01/2024: New firmware updates are available.
06/06/2024: New firmware updates are available.
EOS R6 Mark II - Version 1.4.0
Speedlite EL-5 - Version 1.1.0
Speedlite Transmitter ST-E10 - Version 1.1.0
04/16/2024: New firmware updates are available.
RF100-300mm F2.8 L IS USM - Version 1.0.6
RF400mm F2.8 L IS USM - Version 1.0.6
RF600mm F4 L IS USM - Version 1.0.6
RF800mm F5.6 L IS USM - Version 1.0.4
RF1200mm F8 L IS USM - Version 1.0.4
03/26/2024: New firmware updates are available.
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