>>3313092>>3313093>>3313104>Nothing in the frame is in focus.That's motion blur due to too-slow shutter speed 1/100. You need to check what mm the lens is set to then halve the exposure time, if you are going handheld and not tripod. 100mm = 1/200, 500mm = 1/1000, and so on. Don't go below about 1/250 though, unless you can rest the camera against something. Anything 1/100 or below should have a tripod; sometimes you can get away with it using burst. I've had limited success, like 1 clear out of 6 blurry.
If the difference is between using 1/250 ISO800 or 1/100 ISO 400, use the 1/250 ISO800. A little extra noise isn't as bad as unintended motion blur. Otherwise, you'll need more light by adding light or opening the aperture wider.
>>3313104For macro like that, unless you intend to have some stuff out of the DOF, increase the aperture to as small as the lens will go. Then all those coins might be in the DOF and focused. You'll need more light to do that. Otherwise, use f/8, a rail/bellows, and learn to focus stack. 2-3 images to focus stack this
>>3313111 or reducing the aperture to increase the DOF would allow the entire flower to be in focus. Like what
>>3313121 says. Just remember you lose a lot of light doing that. A reflector can help greatly and recover a few stops at best depending on the situation. That will allow hand held instead of tripod.
Play around with it until you can go it on the fly without a tripod. If you have Photoshop, you can do hand held focus stacks if you don't move the frame around too much. It will align everything for you.
As for the lens, it is quite fine for sharpness. Remember not to pixel peep when you do an evaluation. View the image in its entirety for all judgements. If you can't see anything wrong like that then it is fine. The only time you'd need it better is if you are having a company print it out at over 20" in size and the display area allows people to get really close.
