https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-working-sometimes/m-p/296868#M787 <BLOCKQUOTE><HR /><a href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/132601">@Pedro89</a>&nbsp;wrote:<BR /><P>Hi, so i just got a yongnuo speedlite to use on an 80D but i have this problem where the speedlite icon blinks where the flash compensation icon goes and when i fire it sometimes syncs and sometimes it doesn't so i end up with some of the images well exposed and some to dark. Its on ETTL mode, no first courtain; i've cleaned the contacts in case it was that but to no success.</P><P>Also when i put it in manual mode it works just fine.</P><HR /></BLOCKQUOTE><P>Why "no first curtain"? Isn't first-curtain synchronization the more common setting, at least when using a Canon flash? Have you tried it the other way?</P> Thu, 20 Feb 2020 13:14:26 GMT RobertTheFat 2020-02-20T13:14:26Z https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-working-sometimes/m-p/296835#M786 <P>Hi, so i just got a yongnuo speedlite to use on an 80D but i have this problem where the speedlite icon blinks where the flash compensation icon goes and when i fire it sometimes syncs and sometimes it doesn't so i end up with some of the images well exposed and some to dark. Its on ETTL mode, no first courtain; i've cleaned the contacts in case it was that but to no success.</P><P>Also when i put it in manual mode it works just fine.</P> Thu, 20 Feb 2020 00:20:45 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-working-sometimes/m-p/296835#M786 Pedro89 2020-02-20T00:20:45Z https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-working-sometimes/m-p/296868#M787 <BLOCKQUOTE><HR /><a href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/132601">@Pedro89</a>&nbsp;wrote:<BR /><P>Hi, so i just got a yongnuo speedlite to use on an 80D but i have this problem where the speedlite icon blinks where the flash compensation icon goes and when i fire it sometimes syncs and sometimes it doesn't so i end up with some of the images well exposed and some to dark. Its on ETTL mode, no first courtain; i've cleaned the contacts in case it was that but to no success.</P><P>Also when i put it in manual mode it works just fine.</P><HR /></BLOCKQUOTE><P>Why "no first curtain"? Isn't first-curtain synchronization the more common setting, at least when using a Canon flash? Have you tried it the other way?</P> Thu, 20 Feb 2020 13:14:26 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Speedlite-working-sometimes/m-p/296868#M787 RobertTheFat 2020-02-20T13:14:26Z