I'm planning to buy extension tubes for my Canon 50mm f1.8 lens. I found Kenko for about $150 but then again there are the others which are going for about $10 or less which does not mention of a brand name or anything. Any particular difference or disadvantage to using the no-name brand to the lens or camera? I find it pointless to spend lots because for sure I know that there are no optics and hence image quality should not be a problem.
Answer
The more expensive Kenko tubes have contacts that allow the lens to pass metering and aperture information to the camera, and the necessary mechanics to work the aperture, so you can use the lens as normal.
The cheap ones lack these, so you have to meter manually and your aperture will be fixed at its smallest diameter - ideally you need a lens with a manual aperture ring, which I believe is not the case with your Canon.
No comments:
Post a Comment