I don't know what crop factor you have, and am not sure about shutter speed that technically should or should not have been used. I would generally think 1/110 @ 8mm to be acceptable on a point and shoot. It was certainly overexposed so you could have used more. Of course as Shelps mentioned, the coral stretches beyond the depth of field because of the wide aperture, so that could be lower as well. Clarity just isn't there. Perhaps the you shot through the glass at a weird angel? DPreview has strangely never reviewed this camera. I peeked in on both the A800 and A820, but they seem so similar I can't see how an "A805" could possibly fit in the middle. Did you buy the camera at Wal-Mart? (Just curious)
# Camera Make = FUJIFILM
# Camera Model = FinePix A805
# Picture Orientation = normal (1)
# X-Resolution = 720000/10000 = 72
# Y-Resolution = 720000/10000 = 72
# X/Y-Resolution Unit = inch (2)
# Software/Firmware Version = Adobe Photoshop CS3 Windows
# Last Modified Date/Time = 2008:12:08 09:32:19
# Y/Cb/Cr Positioning (Subsampling) = co-sited / datum point (2)
# Copyright Owner =
# Exposure Time (1 / Shutter Speed) = 10/1100 second = 1/110 second = 0.00909 second
# Lens F-Number/F-Stop = 280/100 = F2.8
# Exposure Program = normal program (2)
# ISO Speed Ratings = 400
# Exif Version = 0220
# Original Date/Time = 2008:12:07 23:02:36
# Digitization Date/Time = 2008:12:07 23:02:36
# Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
# Compressed Bits per Pixel = 40/10 = 4
# Shutter Speed Value (APEX) = 686/100
Shutter Speed (Exposure Time) = 1/116.16 second
# Aperture Value (APEX) = 300/100
Aperture = F2.83
# Brightness (APEX) = 249/100
Brightness = 5.62 foot-lambert
# Exposure Bias (EV) = 0/100 = 0
# Max Aperture Value (APEX) = 300/100 = 3
Max Aperture = F2.83
# Metering Mode = pattern / multi-segment (5)
# Light Source / White Balance = unknown (0)
# Flash = Flash did not fire, compulsory flash mode
# Focal Length = 800/100 mm = 8 mm
# FlashPix Version = 0100
# Colour Space = sRGB (1)
# Image Width = 800 pixels
# Image Height = 694 pixels
# Focal Plane X-Resolution = 4236/1 = 4236
# Focal Plane Y-Resolution = 4236/1 = 4236
# Focal Plane X/Y-Resolution Unit = centimeter (3)
# Image Sensing Method = one-chip color area sensor (2)
# Image Source = digital still camera (DSC)
# Scene Type = directly photographed image
# Custom Rendered = normal process (0)
# Exposure Mode = auto exposure (0)
# White Balance = auto (0)
# Scene Capture Type = standard (0)
# Sharpness = normal (0)
# Subject Distance Range = unknown (0)
Compression = JPEG compression (6)