> On Apr 15, 2022, at 11:15 AM, Igor PDML-StR <[email protected]> wrote: > > > I thought some people here might find this curious: > It is interesting to see 5[!] images of the aperture. > Pentax D FA 100 mm F2.8 Macro (not "WR") @ f/5.6 > (The lens has 9 elements in 8 groups.) > Some other images from this setting showed only 4. > > Never mind the central part of the photo - this is one of the images to be > deleted. I did not crop it out just to show the context of how the image was > taken: > http://42graphy.org/misc/ApertureImages/ApertureImage_IR09244.jpg > > I cannot say that I _fully_ understand how all these images are formed, - > especially after looking at this photo: > http://42graphy.org/misc/ApertureImages/ApertureImage_IR09238.jpg > This has up to 8-9 aperture spots, but some of them are motion-blured. > The camera was hand-held, with the motion reduction enabled. > I am guessing that the motion-blur comes from the camera shake, not > compensated by the sensor. But it also makes me wondering if all these > aperture images are effectively just the same single image - due to a > reflection from the sensor that moves as the sensor compensates for the > camera shake. > Any thoughts?
I suspect that if you had stopped the camera down you would see points of light coming through the foliage in the background. I think it’s just standard bokeh of point light sources in the background, especially since I see a bunch of other vaguely MG logos in other portions of the image. -- Larry Colen [email protected]. sent from ret4est -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to [email protected] to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
