I have been using my Laowa 15mm for close to a year now. At first, I had the aperture preset to like F11. The viewfinder became dark and focusing was difficult, even with focusing light.
After a while, I find it easier to focus wide open at F4, and once focus is achieved, I will dial the aperture ring all the way to F32, then back a little, "without looking". I have no idea what aperture I use!
So the question is: is there any gadget/contraption that will allow me to dial the aperture ring to a desired value. Something like a stopper.