I think the notion of FF = heavier lens may not be true

Started Nov 8, 2013 | Discussions thread
shigzeo
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Re: I think the notion of FF = heavier lens may not be true
In reply to nicholo89, Nov 8, 2013

nicholo89 wrote:

I know I might get some flak for this, but I was just curious about this debate so decided to check out the olympus site.

I know it's not FF, but if the logic is that bigger sensors mean bigger lenses, then it should also be concluded that aps-c lenses will be bigger/heavier than m43.

But after checking the olympus site, their equivalent lenses are heavier. They don't have exact same focal lengths but relatively close.

zuiko 14-54 2.8-3.5 = 440g

fuji 18-55 2.8-4 = 310

zuiko 50-200 2.8-3.5 = 995g

fuji 55-200 2.8-4 = 580g

for comparison, panasonic's closest was the 45-150, but with a slow aperture of 4-5.6 weight = 200g. It's much lighter than both the zuiko and fuji, but has a slower max aperture.

zuiko 35 f3.5 = 165g

fuji 35 1.4 = 187g

panasonic 45 2.8 = 225g

panasonic 25 1.4 = 200g

I know some may not be a direct comparison, but some of them just don't make the same focal length and aperture. What I find interesting is that Fuji is actually the lightest of the bunch, but has a bigger sensor.

It seems to really all boil down to lens design and materials. I think the assumption is also that all else being equal, yes, it glass elements will be bigger to accommodate a larger sensor, but the lens as a whole can still be light by using lighter metals like aluminum and perhaps less glass elements.

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Not to mention the tiny sum micron-C lenses, tiny elmarits, etc., full frame is only huge once you get internal focus SLR systems between them. The SLRs and 'full frame' of yesterday had lot of small equipment associated.

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