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70-300L change of mind

Started Oct 5, 2014 | User reviews thread
bronxbombers4 Veteran Member • Posts: 3,387
Re: 70-300L change of mind

totleytom wrote:

"extreme focus breathing at the long end and close focus – in fact it gives roughly the same magnification as the 4.0/70-200 at 1.2m means same focal length"

Can I just check that I understand what you mean by this? That when set to 300mm and focused on something very close, it seems to give the same image as a 70-200 at 200mm?

What about at longer focusing distances? Do you have any feel for what distance you need to be at before it starts acting like a 300mm lens?

I think it was around 280-285mm (or moreso similar to 70-200 f/4 IS + 1.4x TC) at 25'.

To get to the same 300mm as the tamron 70-300 vc or 300 2.8 IS it seems to take something maybe more like moon distance :).

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