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Old Sep 6, 2018, 6:58 AM   #21
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Quote:
Originally Posted by Linda Bowers View Post
Still nothing.
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Old Sep 6, 2018, 7:06 AM   #22
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How about, instead of a link to the photo, you include a link to the webpage the photo is on?
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Old Sep 6, 2018, 7:22 AM   #23
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Okay, I posted the photo in the critique section!

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Old Sep 6, 2018, 7:17 PM   #24
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That's a nice shoot, but not really a good test of a macro setup. In addition, the reduced resolution for posting here would hide any lack of sharpness. Typically, inexpensive close-up lenses are only sharp in the center, with sharpness falling off toward the corners. By contrast, macro lenses are sharp from corner to corner.

Try a shot of a postage stamp or fine newsprint.
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Old Sep 6, 2018, 11:26 PM   #25
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Will do! I really love macro. Will the tube extenders do a good job of keeping the image sharp throughout?

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Old Sep 7, 2018, 6:25 AM   #26
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Extension tubes don't have any optical properties of their own, so your results depend entirely on the quality of the lens you use them with.

As it happens, the 18-55 and 55-250 are pretty good. I wouldn't expect too much from the 75-300.
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