Hard to tell on screen with a file that’s so small David I’m afraid
Have fun with the gear
Amities
Philippe
Le 7 juil. 2019 à 17:49, David Young <dsy@xxxxxxxxxxxxx> a écrit :
Hi Peter!
Back in mid-June, you were asking questions about Hi-Res images in various
cameras.
Way back, in 2011, I posted this shot of Mt. Robson, taken in 16 separate
images, with my old Nikon 200/4 Micro-Nikkor & stitched together in HugIn.
https://www.flickr.com/photos/155735425@N05/46724903982/in/dateposted-public/
At the time, it was the only way to get a high-res image - with the 16 photos
yielding a 33.33mb image that was spectacularly detailed.
So, on the way home, last Tuesday, I decided to stop at Mt. Robson again, and
take a comparison photo, using the hi-res mode. It was fun, and I'd never
used the feature before!
The instructions say that the camera MUST be on a tripod. However, I did not
have my tripod with me, so I used my monopod, and held the camera against a
signpost.
The results were not exactly inspiring, but then I did not expect them to be.
http://www.furnfeather.ca/look/MtRobsonHR.html
The point of the test was to see just how fast and how easy it is to take a
hi-res shot.
The latest 3.0 firmware update put the hi-res symbol directly into the list
of shooting modes visible in the viewfinder or back-panel display. This makes
it simple to select, whereas previously you had to wade through layers of
menu items.
And, you have to remember that because the sensor is being shifted by the
"motors" that normally run the image stabilization, IS is not available in
Hi-Res mode. (Since I was not using the recommended tripod, this was a
problem!)
Once I had the camera as stable as possible, I pressed the button. The
Hi-Res mode uses the electronic shutter (for less vibration and more speed)
and takes it's series of shots in well under a second (too fast to measure).
Then, the camera reports "busy", for another 4 to 5 seconds as it blends the
images, and the dirty deed is done!
The result is a 49.939mp image that, had it been on a tripod, would have been
spectacular. As it was, it was "adequate", but that's my fault, for not
using a tripod, as instructed.
My other error (which I only learned about later) was that for best results,
Oly suggests f8 is the widest aperture to use. I used f7.1. :-(
However, you'd wondered how difficult it was. The answer is that, other than
needing a tripod, it is so simple "a caveman could do it". Swift and easy.
The only bit I've not figured out, is that Oly claims an 80mp image, whereas
I only got a 50mp one (8160x6120 pixels). Still, not bad from a 20mp sensor!
Oh, and the RAW image seems not to be a series of RAW images which could be
merged outside the camera, but a single, 20mp image from the series. I
suspect that for the whole range of raw images & the 80mp image, you need to
buy the new, rather expensive EM-1x.
Still, for a free upgrade, I'm not complaining and I think the landscape boys
are going to be very happy with it.
Just thought you might like to know.
David.
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