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

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

Bmoon wrote:

Great Bustard wrote:

The fact of the matter is that 200mm f/2.8 on APS-C most nearly compares to 300mm f/4 on FF in terms of AOV, DOF, and total amount of light projected on the sensor for a given shutter speed.

And with this cuts to the point why would someone the cropped 200mm f2.8 to a FF 300mm 2.8

I'm not exactly sure what you're saying here -- are you saying it's why someone chooses a 300 / 2.8 on FF over a 200 / 2.8 on crop?  To maximize the advantage of the larger format?  Sure.  No real point in using a larger format just to get photos equivalent to what a smaller format could do.  That said, there are advantages of a 300 / 4 on FF over a 200 / 2.8 on crop.

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