Sixe Video Converter Download Mp4

[Zayne Plascencia]

The lifesize converter works fine with the 100/2.8 and gives you a maximum magnification of something like 1.7:1. Think of the the converter as a 1.4x extender stacked with a 25mm extension tube. As others have pointed out the AF will hunt terribly when the lifesize converter is used with the 100/2.8 (or with any other telephoto I've tried), but for manual focus macro it's fine. I use it to cover the intermediate range when I want more magnification than the bare 100/2.8, but more working distance than the 65/MPE.


It is my understanding that the Canon life size converter actually converts the 50 macro into something like a 70 macro, so it might improve working distance slightly compared to the 50 and an extension tube. If you've already got the EF 25, why not try it and see what you think? There are many happy folks getting macro scale images with extension tubes, closeup lenses and the like. I don't know if the EF25 gives you enough extra focus to get to 1:1, but you can find out by looking at most EF lens brochures, or calling Canon at 1-800-OKCANON.



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I had a Minolta MC Rokkor macro lens of around 50mm focal length for many years, and it came with a life size converter which was glassless, so it was really just a fancy extension tube. It was well regarded when I bought it around 1971, and when I sold it last year, I got more than it had cost when new, so it must still be reasonably well thought of. My point is that you don't have to have additional optical elements to get decent macro images, so try the EF 25 and see what you think.


Thanks for the replies. I already have a 100mm macro. I need a 50mm lens and thought I may as well make it a macro. I also like the fact that you get more background and a more pleasing perspective in a NATURE macro shot with a 50mm lens. I would be interested to know if the life size converter really changes the focal length to 70mm, in which case I would definately not get it.


How to cite this article: Zhao, Y. et al. Design and fabrication of six-volt vertically-stacked GaAs photovoltaic power converter. Sci. Rep. 6, 38044; doi: 10.1038/srep38044 (2016).





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