topic Re: Speedlite 600 EX II-RT inconsistent firing in manual in Speedlite Flashes

Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 18:21:28 GMT

I use my Speedlite in manual mode, on camera, for wedding reception candids. I noticed that I will get some great exposures and then about 5 or 6 shots later the image is blown out with no changes to any camera or flash settings and shot from similar distances. Any suggestions?

Re: Speedlite 600 EX II-RT inconsistent firing in manual

rs-eos — Mon, 18 Oct 2021 18:24:05 GMT

Are you sure the flash is in manual mode? How about your camera? Is it in manual mode as well? I'm wondering if say auto ISO is kicking in on occasion?

Re: Speedlite 600 EX II-RT inconsistent firing in manual

MikeSowsun — Mon, 18 Oct 2021 18:36:32 GMT

@Annette1 wrote:
I use my Speedlite in manual mode, on camera, for wedding reception candids. I noticed that I will get some great exposures and then about 5 or 6 shots later the image is blown out with no changes to any camera or flash settings and shot from similar distances. Any suggestions?

Can you post some examples?

Are you using bounce flash or direct flash?

Are you using some kind of a modifier?

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 18:38:10 GMT

I am using all manual settings both on my flash and camera. ISO is in manual as well.

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 18:38:45 GMT

I'm using direct flash, no modifier. I will post some samples.

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 19:01:48 GMT

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 19:02:31 GMT

No changes in settings. Top image shot first.

Re: Speedlite 600 EX II-RT inconsistent firing in manual

MikeSowsun — Mon, 18 Oct 2021 19:09:18 GMT

The distances look different. What is the focal length used in each photo? Can you provide the EXIF data for each photo?

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 19:30:03 GMT

Re: Speedlite 600 EX II-RT inconsistent firing in manual

Annette1 — Mon, 18 Oct 2021 19:31:19 GMT

The distances are a bit different but if that were the issue then the image with the people closer to the camera should be more overexposed with the one with more distance under exposed.

Re: Speedlite 600 EX II-RT inconsistent firing in manual

MikeSowsun — Mon, 18 Oct 2021 19:40:37 GMT

It does seem like there is a problem because the EXIF data shows all the same values and it is the farther subjects that are blown out.

I can't think of any good reason why this would be happening.