Ok, this is my first attempt at putting photos up on here, so I hope I've done it right! I totally see the difference between ISO 100 to ISO 1600.. I had my camera set on F/5.6 and not only is there a definite presence of noise in the 1600 shot, it is also alot brighter. I also wanted to note that they were taken at different distances because the bees weren't liking me being so close to their food hehe
Here's the info (not sure how much to put):
Photo 1
ISO 100
Shutter Speed - 1/800
F-Stop - f/5.6
Focal Length - 54mm
Photo 2
ISO 1600
Shutter Speed - 1/4000
F-Stop - f/5.6
Focal Length - 54mm