anyte said:I know what a teleconverter does, but what does an extension ring do?
Jorge Oliveira said:Just a reflection re teleconverters:
Image quality suffers, but in my experience, if one enlarge a photo from a given distant subject not using a TC to the same size of one taken with a TC, the final quality is better with the TC.
And TC's shall not be used with short lenses. They fare better making tele lens longer.
This is valid for 2X TCs - 3x TCs give lousy results...
This said, TCs shall only be used if a longer lens is not available.
25asa said:With the converter I shot frames at 5.6 (11), 8 (16), 11 (22), . .up to 45 (90)
Without the converter I shot frames at 11, 16, 22, 32, and 45 to coincide.
Magnifying the bricks to where they are the same size, the 2x converter shots show better resolution and accutance.
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