Thank you for your ongoing in-depth information on the R5. My primary interest is macro photography. In my studio, when capturing dead insect images, I use a 5DIV on a motorized rail with up to 4 remote flashes and up to 20x microscope objectives on a 200mm lens. This works just fine. In the field however, shooting live insects, I use my R5, 100mm lens, Godox flash with an AK diffuser. My problem is I cannot use in-camera stacking with electronic flash to eliminate insect movement. Single shots fail in that regard. Is it a physical or software limitation, and is there a way around this? Thank you.
That's a physical limitation of the camera. On the R5, focus bracketing uses the electronic shutter to maximize frame rate and minimize cycle time. On the R5, the electronic shutter's read speed isn't fast enough to allow it to be used with a flash. The R3 can do what you're trying to do. But bear in mind that in order to allow the flash to fire for every frame, the focus bracketing feature on it includes a delay timer (minimum of 1 second between frames), when using the flash to allow the flash to recharge between shots.
@@PointsInFocus thanks for your response. Quite frustrating that I have to invest in another platform to achieve the results I’m looking for. After purchasing the 40D, 7D, 5DIV, and the R5, I may have purchased my last Canon, along with their lenses ranging from a 10-22mm, all the way up to a 600mm f/4, and most everything in between.
Okay. Here is what I want to know. I have a Canon R5. I send the RAW files to the CFE card and back up with jpgs to the SD card. The SD card is slower than the CFE, but I am sending smaller files. Is the SD card still slowing down the process of clearing the buffer? Is the difference in file size between the RAW and jpg files enough to offset the slower write speed of the SD card versus the CFE card? It obviously will depend will depend on the write speeds of the cards, but let’s assume for the sake of the argument that I have a SD card with blazing fast write speeds. Possible to keep up with even an average CFE?
The only way you're going to be able to say for sure is to test it. Your setup v. RAW only to the CFE card and see how long it takes to clear a full buffer. There are simply too many variables involved, especially given that we're talking about flash media and write performance can vary with use and how the card was previously erased.