Thanks very much, Aram, for your comments. I hope that your knee rehab is
coming along well.
Best regards,
Peter S.
On Jun 20, 2019, at 6:46 PM, Aram <leica_r8@xxxxxxxxxxx> wrote:
There is a bit of difference in the stacking I do to increase DOF and the
stacking the camera does to increase resolution. In my case, each image
differs in the focus point. I will take a series of photos, shifting the
focus distance by a small amount so I get a series of slices (focus
planes)and then use software to put them together, blending them so the
sharpness extends beyond what a single image would contain.
The kind of stacking in the Olympus and I think a few other cameras is that
the sensor is shifted within the same plane by some fraction of a pixel
distance. This means that you collect more information (resolution) that
the sensor is physically designed for. If you had a 24mp sensor, and you
take 4 shots slightly shifted, you could now have a 96mp image in a perfect
world, but I don't think this is quite true since pixel size probably has a
lot of overlap anyway. It does not change depth of field.
So these are two different beasts.
-----Original Message-----
From: Peter Stevens (Redacted sender "fritzj3" for DMARC)
Sent: Thursday, June 20, 2019 6:47 AM
To: leicareflex@xxxxxxxxxxxxx
Subject: [LRflex] "Stacking" Identical Images For A High Resolution Single
Image
Good morning to everyone. I have some questions about “stacking” the same
digital image to achieve a high resolution single image and I would welcome
comments from anyone.
I recall in the past that Aram and Philippe have posted images that involved
stacking, but at the time I didn’t pay too much attention to the details
other than to note that the images were very nice. Now, something that I
read last night about the Olympus EM1 Mk II brought the subject back to my
mind.
In the text about the Olympus there was mention of a feature internal to the
camera that allowed for “stacking” identical images taken at a high rate
of
speed to achieve a high resolution single image to a potential resolution of
50 megapixels. Has anyone used that particular function on an Olympus or any
other make of camera that offers it for that matter? Does it work as
seamlessly as advertised by Olympus? Does the technique have downsides and
unspoken limitations that the Olympus text might have neglected to mention?
Thanks.
Best regards,
Peter S.------
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