To understand how much swirly bokeh and in-camera vignette you can get on full frame, crop sensor, and micro 4/3rds cameras, see the examples below. Click to see the image grid larger.
To get an idea of the difference between the effect and framing you can get with Burnside 35 and Twist 60, see the sample images below.
To get an idea of the amount of swirl and vignette you can get on crop sensor cameras with Burnside 35 see the sample images below.
To understand the range of the in-camera vignette you can get with the gold effect slider see the examples below.
SeanAndersonMedia.com Burnside 35 in-camera vignette video variations on full frame