Archibald wrote in post #17510232
I suspect most normal and macro lenses of 100mm and longer are telephoto in design.
Macro lenses are classified by their magnification rate. Most, if not all, macro lenses will magnify to 1/2 life size(1:2) and some will go to 1:1(life size) without the need for additional extension tubes. If you were to take a picture of a 1" circle, it would be 1/2" on the sensor(this used to be on the negative!) at 1:2. Macro lenses are generally between 50 and 200MM. The size selected depends on preference and pocket size
. Magnification is not related to lens size, 1:2 with a 50mm is the same as 1:2 with a 200mm lens, but perspective and distance between subject and lens(sensor) will be different. I prefer 200mm lenses but my pocket could only swing for a 90mm at the time
However, with cropped sensors, a 100 becomes a 160mm lens! Macro photography requires a different way of thinking, you will find yourself watching where you step! It also takes quite a bit of patience, at least it does for me. I don't like flash and natural light and breeze become an issue, exposures tend to be fairly long if you want to get a decent DOF.

Image hosted by forum (
721897)
© CheleA [SHARE LINK] THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.