Quote from: Pharinen on December 21, 2016, 10:22:46 AM
(I don't know if this is any new info to you guys but I found it quite interesting.)
I found out that JPEG buffer is almost unlimited* when shooting stills in video mode. Raw buffer depth is the same.
I know there is a crop(either 4:3 or 16:9) and file size is slightly smaller(around 5-10%) but it still doesn't explain to me why I can only get 3 JPEG in a row(without slowdown) in photo mode. Even with the lowest quality JPEGs! Maybe there is some logical reason and I'm just being dumb. Don't be harsh on me. xD
I don't know if this is any useful info for the development but I thought I would share this.
E: *I tested this a bit more. It is not quite unlimited as I first though but it's still much better than in photo mode. Buffer depth seems best in 4:3 video mode. I can get around 75 shots(shooting large jpegs) in a row without slowdown after formatting and reboot. After that I can get roughly 25 shot bursts. In 16:9 mode it seems to be slightly worse weirdly(bigger crop). I only have 40 MB/s card though, maybe it is better with faster card.
E2: Shooting medium or small size jpegs buffer seems almost unlimited. Got over 150 shots and I stopped myself. Didn't want to ruin my shutter any more.
Because in movie mode, the lens aberration only correct the peripheral illumination, chromatic does not.
Correct peripheral illumination seem doesn't affect process speed, so leave it always enable.(EF-M 22mm has strong light fall-off)
In photo mode, disable chromatic aberration in Lens aberration correction will help, set L-size and low quality jpeg give me unlimited buffer.(with fast sd card like sandisk extreme pro)
Set higher ISO and NR also affect process speed.