Canon RP with Godox flash and triggers, high speed sync does not work

[lynnG]

What is your experience with Canon RP with Godox flash and triggers?

I just got my Canon RP on last Friday and tried Godox V860ii both on and off camera with XproC and XT1 triggers. High speed sync does not work with all these situations. I have read another thread on Canon R with Godox flash. It does not appears that those people owning R have any problems. I also tried M50. It worked perfectly. Are RP and R really different in flash control system? I am looking forward to hearing your experience.

 

[N-VB]

RP have an about the same sensor as 6DII and same shutter speeds, it should work.

What kind of results did you get?

Try to:

-update triggers and flashes

- turn off all kind of silent/electronic shutter

- first try the trigger and flashes in manual, then in ttl

 

[lynnG]

RP have an about the same sensor as 6DII and same shutter speeds, it should work.

What kind of results did you get?

Try to:

-update triggers and flashes

- turn off all kind of silent/electronic shutter

- first try the trigger and flashes in manual, then in ttl

Thanks for your suggestion. However flash high speed sync has nothing to do with sensor and shutter speed. Even RP has the same sensor and max shutter speed as 6DII. It does not mean that the high speed sync will work. I have tried all M and ttl and ended up with similar results, i.e., clear banding (90% picture dark and top 10% bright) in my pictures as soon as shutter speed exceeds 1/200. Firmware for camera, flash and triggers is updated.

I thought it should work since there is no problem reported with Canon R. It is clearly a different case with RP.

 

[N-VB]

clear banding (90% picture dark and top 10% bright) in my pictures as soon as shutter speed exceeds 1/200.

This is what i needed to know. You have to disable all electronic shutter.

On the R, red options page 6 disable Silent LV shoot switch to OFF. It uses electronic first curtain.

It will work perfectly now

edit: it would be the same with any flashes brands

 

[Yujiin]

clear banding (90% picture dark and top 10% bright) in my pictures as soon as shutter speed exceeds 1/200.

This is what i needed to know. You have to disable all electronic shutter.

On the R, red options page 6 disable Silent LV shoot switch to OFF. It uses electronic first curtain.

It will work perfectly now

edit: it would be the same with any flashes brands

That isnt an option in the menu for the EOS RP. It is there on the R but not on the RP. However it is not the same on every brand. It does a bright band at the with godox and after talking with Canon, they wanted me to test it with a canon speedlight. That resulted in a dark band at the top of the frame.

 

[N-VB]

clear banding (90% picture dark and top 10% bright) in my pictures as soon as shutter speed exceeds 1/200.

This is what i needed to know. You have to disable all electronic shutter.

On the R, red options page 6 disable Silent LV shoot switch to OFF. It uses electronic first curtain.

It will work perfectly now

edit: it would be the same with any flashes brands

That isnt an option in the menu for the EOS RP. It is there on the R but not on the RP. However it is not the same on every brand. It does a bright band at the with godox and after talking with Canon, they wanted me to test it with a canon speedlight. That resulted in a dark band at the top of the frame.

It's the same for any camera and flashes brands, if you use electronic shutter, you will get all kind of wierd results.

I don't own RP, you'll have to find how activate full mechanical shutter. No silent, no quiet, which will use full or first curtain electronic shutter.

 

[lynnG]

clear banding (90% picture dark and top 10% bright) in my pictures as soon as shutter speed exceeds 1/200.

This is what i needed to know. You have to disable all electronic shutter.

On the R, red options page 6 disable Silent LV shoot switch to OFF. It uses electronic first curtain.

It will work perfectly now

edit: it would be the same with any flashes brands

That isnt an option in the menu for the EOS RP. It is there on the R but not on the RP. However it is not the same on every brand. It does a bright band at the with godox and after talking with Canon, they wanted me to test it with a canon speedlight. That resulted in a dark band at the top of the frame.

It's the same for any camera and flashes brands, if you use electronic shutter, you will get all kind of wierd results.

I don't own RP, you'll have to find how activate full mechanical shutter. No silent, no quiet, which will use full or first curtain electronic shutter.

RP is very different from R. There is no selection of e or mechanical shutter. It is similar to M50. E shutter only works in one of the auto modes. This was done by Canon deliberately to keep a market advantage to R. Your R may work but not RP. We cannot select e or mechanical shutter. In fact I could hear the sound that I used mechanical shutter. It took a while for M50 to work with Godox. R seems in a worse situation than M50. My M50 worked with Canon flash perfectly when it did not work with Godox in early days. Now R does not even work with Canon flash according to the previous message. I have not tried my Canon flash on high speed sync yet and will do it in the weekend.

 

[Mark van Dam]

Following with interest...

 

[rbobis]

Curious what brand of lighting and lenses are you using

I just received my RP and noticed the problem when I first put on a flash strobe. I was using a Flashpoint (Godox) zoom li-on and Sigma 85mm 1.4 ART. It was the same when I used a Sigma 50mm ART. When I changed the lens to a canon 24-105 L Ver 1 the problem went away. The next day I tried again with the both sigma lenses and the problem seems to have fixed itself. I'll play around it more to see what I might have done to resolve the problem and put it on a later post.

The ONLY lens in my arsenal that does not seem to work with the Godox (Flashpoint) System is my 35mm L ver. 1. Well, it does work in Manual mode however ETTL settings don't work. This also applies to when using this setup with the Flashpoint XC Pro trigger and the flashpoint evolv200 and xplor600. I threw on my canon 430 ex II to this setup and all functions worked perfectly.

Bottom line.... new camera paired to 3rd party lenses and accessories may have some quirks until firmware updates are provided.

 

[rbobis]

Saw the heading on the post indicating problems with Godox (Flashpoint) flash and triggers. After follow up tests I can conclude that the Godox units need a firmware update in order to work with the EOS RP or either the white banding or dark banding (depending on your f-stop setting) will occur. Hope they come out with one very soon. As I recall, they also had issues when the 6dII first came out.

 

[Lobbamobba]

I get it to work but just like on my 6D it has a bug where I have to turn it on and wait a few minutes before it does. Weird and pretty annoying but I have made my peace with it.

 

[lynnG]

Curious what brand of lighting and lenses are you using

I just received my RP and noticed the problem when I first put on a flash strobe. I was using a Flashpoint (Godox) zoom li-on and Sigma 85mm 1.4 ART. It was the same when I used a Sigma 50mm ART. When I changed the lens to a canon 24-105 L Ver 1 the problem went away. The next day I tried again with the both sigma lenses and the problem seems to have fixed itself. I'll play around it more to see what I might have done to resolve the problem and put it on a later post.

The ONLY lens in my arsenal that does not seem to work with the Godox (Flashpoint) System is my 35mm L ver. 1. Well, it does work in Manual mode however ETTL settings don't work. This also applies to when using this setup with the Flashpoint XC Pro trigger and the flashpoint evolv200 and xplor600. I threw on my canon 430 ex II to this setup and all functions worked perfectly.

Bottom line.... new camera paired to 3rd party lenses and accessories may have some quirks until firmware updates are provided.

That is very interesting. I used Canon 50L, 100/f2.0 and 35IS. It was not working. I have the first version 24-105L and will try it this weekend. As other said, we need firmware update from Godox. I have written to them but have not received any reply.

 

[rbobis]

I have the Adorama (flashpoint) versions and have contacted Adorama. The tech said I was the first to report the problem.

After more testing it has the same problem on all lenses that I own. It seems to start occurring at about 1/500 sec on HSS however at around f5.0 and wider it has a light edge and at f5.6 and tighter it has turns into a dark edge. Let me know if you have the same experience.

 

[lynnG]

I have the Adorama (flashpoint) versions and have contacted Adorama. The tech said I was the first to report the problem.

After more testing it has the same problem on all lenses that I own. It seems to start occurring at about 1/500 sec on HSS however at around f5.0 and wider it has a light edge and at f5.6 and tighter it has turns into a dark edge. Let me know if you have the same experience.

The Godox version triggers XT-1 and X-proC are even worse. Dark or bright banding occurs as soon as the shutter speed over 1/200. The situation is similar when using V860ii flash directly attached to RP.

 

[N-VB]

Have you tryed to enable HSS sync in camera ? Page 225 (4) and p228

 

[Mark van Dam]

I have the Adorama (flashpoint) versions and have contacted Adorama. The tech said I was the first to report the problem.

After more testing it has the same problem on all lenses that I own. It seems to start occurring at about 1/500 sec on HSS however at around f5.0 and wider it has a light edge and at f5.6 and tighter it has turns into a dark edge. Let me know if you have the same experience.

The Godox version triggers XT-1 and X-proC are even worse. Dark or bright banding occurs as soon as the shutter speed over 1/200. The situation is similar when using V860ii flash directly attached to RP.

I tried an RP with XproC mounted on camera with external Godox tt685C at my local Henrys store. It worked perfectly. I used shutter priority mode.







--
--Mark van Dam

 

[RyanBoston]

I have the Xpro C trigger and select High speed sync. It works on my RP.

 

[rbobis]

Thanks for the test. You'll see a dark band across the top if you increase the shutter higher. Please try at 1/1000, 1/2000 and 1/4000 and post results.

Upon more testing I've found that does also occur with canon flash. I've tested with the 430exII.

Something else to note, I don't have any native RF lenses so I'm using EF glass with the adapter. Maybe that has something to do with it?

I'll post pictures soon with my test results

 

[rbobis]

Here are some images using the canon EOS RP with Zoom LI-Ion. The flash unit is updated to the latest firmware. Note the banding that occurs with HSS and the black edge at faster shutter speeds

 

[rbobis]

Here are some taken with the canon 430exII. Less banding than the Flashpoint unit however black bar still appears at faster shutter speeds