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40-150 PRO focus breathing?

Started Jul 8, 2015 | Questions thread
CrisPhoto
CrisPhoto Senior Member • Posts: 1,749
Re: I don't think its dramatic.
1

Fri13 wrote:

CrisPhoto wrote:

(did you measure the distance from front element to subject or from camera back)?

The metering point is always from the sensor plane, that is marked with circle that is divided by a line and usually placed on the side of EVF hump or top plate. Like example with E-M1 it is on left side of the hot shoe.

So when you are doing accurate focusing ie. macro photoraphy etc, you place your metering tape on that and meter distance to the subject from it.

Yes, I know the official part.

But if I would compare the 40-150 close-up capabilities to lets say the 60mm macro I would get completely different perspective/magnification because the nodal point or the front lens of the 40-150 is much nearer to the subject. This is independent from the sensor plane.

If the OP compared a very long FF lens with the smaller 40-150 (or a compact FF macro prime with the taller 40-150 zoom) it would also yield very different results when the camera/tripod stays at the same distance.

Christof

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OM-D + Sam7.5, O25, O60, O75
O12-40, O40-150, P 14-140

 CrisPhoto's gear list:CrisPhoto's gear list
Olympus E-M1 II Samyang 7.5mm F3.5 Fisheye Olympus M.Zuiko Digital ED 75mm F1.8 Panasonic Lumix G Vario 14-140mm F3.5-5.6 O.I.S Panasonic Leica DG Summilux 15mm F1.7 ASPH +9 more
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