July 30, 2014, 01:57:23 AM

Author Topic: Internal Zooming Standard Zoom  (Read 986 times)

RAKAMRAK

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Internal Zooming Standard Zoom
« on: August 30, 2013, 06:19:14 PM »
Just wondering if any of you know whether an internal zooming standard zoom is possible (either EF or EF-S, but I guess if one is possible, the other would be too)? It might be nice to have 17-55 EF-S (or 15-85 EF-S, or 24-70 or 24-105) which does not extend. Opinions?
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Internal Zooming Standard Zoom
« on: August 30, 2013, 06:19:14 PM »

ajfotofilmagem

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Re: Internal Zooming Standard Zoom
« Reply #1 on: August 30, 2013, 06:28:57 PM »
Yes, it is possible to make a "cabinet" size that the current lens is when it is extended. In practice, the size will be big all the time. This would facilitate the sealing of time and give greater resistance to impact at the front of the lens.
« Last Edit: August 30, 2013, 06:32:18 PM by ajfotofilmagem »

dgatwood

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Re: Internal Zooming Standard Zoom
« Reply #2 on: August 30, 2013, 09:38:23 PM »
Yes, it is possible to make a "cabinet" size that the current lens is when it is extended. In practice, the size will be big all the time. This would facilitate the sealing of time and give greater resistance to impact at the front of the lens.

For example, the 16-35 L II is built that way.

SwissBear

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Re: Internal Zooming Standard Zoom
« Reply #3 on: August 31, 2013, 07:39:05 AM »
Or the new sigma 18-35 f/1.8 DC for crop sensors.
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RAKAMRAK

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Re: Internal Zooming Standard Zoom
« Reply #4 on: August 31, 2013, 08:31:57 AM »
Or the new sigma 18-35 f/1.8 DC for crop sensors.

Yes, that is the lens that made me ask the question. I have not handled the 16-35L. but the Sigma felt nice, that is why I was dreaming for an EF-S 17-55 of that type.
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Re: Internal Zooming Standard Zoom
« Reply #4 on: August 31, 2013, 08:31:57 AM »