I have recently bought myself some fast Olympus glass. I have 24/2, 35/2 50/1.2, 85/2 and a 100/2 on the way. During the day i find i am using a vast shutter speed. Does anyone use a filter to help keep the shutter speed lower.
Hope that my question makes sense
If you can shoot at the aperture you desire, there's no reason to want to use a slower shutter speed unless you are looking for motion blur.
However if you find you're limited to f/4 @ 1/4000 @ ISO 1000 then using a neutral density filter (or a polarizer) will allow you to open your lens up.
The flashing shutter spped means that you are at your max shutter speed and still overexposed. I use a singh ray vari nd filter to get the right exposure for fast lenses shooting wide open during a bright day at ISO 100. It does a great job and is easy to use.
I'm assuming the OP knows he can stop the lenses down.
ISO LO (50) is there after you run out of shutter speed.
After that it's ND
ND is also used in daylight to get the shutter speed down for sync with flash
