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<blockquote data-quote="Marcel" data-source="post: 131123" data-attributes="member: 3903">A few things you have to remember with extension tubes. The longer the extension tube, the more light that will be lost in it. It could take as much as twice the light to reach the sensor with the longest extension tube. This means your exposure will have to be twice as long than without the tube.Second, I (personal opinion here) think that auto-focus should be banned when doing macro work. This is why they sell macro focusing rails. It is much easier to set focus on the lens and then move the camera back and forth. And if you're not using a tripod, then take as many shots as you can since moving in an out, if only one millimeter, will make or ruin the shot.So patience is the key here. The use of flash with a diffuser can help to get smaller apertures, but there is no magic setup. Trial and error will give you more keeps on the long run.Happy learning!</blockquote>

[QUOTE="Marcel, post: 131123, member: 3903"] A few things you have to remember with extension tubes. The longer the extension tube, the more light that will be lost in it. It could take as much as twice the light to reach the sensor with the longest extension tube. This means your exposure will have to be twice as long than without the tube. Second, I (personal opinion here) think that auto-focus should be banned when doing macro work. This is why they sell macro focusing rails. It is much easier to set focus on the lens and then move the camera back and forth. And if you're not using a tripod, then take as many shots as you can since moving in an out, if only one millimeter, will make or ruin the shot. So patience is the key here. The use of flash with a diffuser can help to get smaller apertures, but there is no magic setup. Trial and error will give you more keeps on the long run. Happy learning! [/QUOTE]

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