Was not original planning on sharing these pictures, so in most cases I only did a "Save for Web" on pBase but changed my mind...so I checked the raw originals and entered the shutter speed and aperture for each. All were taken at ISO 800. No noise reduction was done on all, except one...which is noted. Lighting was a mix of window and incandescent lamps. People were dark and lamp light was burnt out. I realized after that first pic that there just wasn't any noise of consequence. Pictures were taken with the EF50mm 1.8 II lens.