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Olympus-OM

Re: [OM] How Wide is Wide? [was New Sonie lens 20/1.8]

Subject: Re: [OM] How Wide is Wide? [was New Sonie lens 20/1.8]
From: Philippe <photo.philippe.amard@xxxxxxxxx>
Date: Wed, 25 Mar 2020 10:11:26 +0100
A stitch in time saves nine it is said.

Here are two views of a tomb in the Valley of Kings, one of the many Ramses’s 
;-)

#1 - single shot, at the widest of the zoom range

http://gallery.leica-users.org/v/Phileica/2020-Egypt/2020-Egypte-+Valley+of+the+Kings+-+Tomb-0461.jpg.html
 
<http://gallery.leica-users.org/v/Phileica/2020-Egypt/2020-Egypte-+Valley+of+the+Kings+-+Tomb-0461.jpg.html>

and a pano with the same lens at the same FL

http://gallery.leica-users.org/v/Phileica/2020-Egypt/2020-Egypte-+Valley+of+the+Kings+-+Tomb-pano.jpg.html
 
<http://gallery.leica-users.org/v/Phileica/2020-Egypt/2020-Egypte-+Valley+of+the+Kings+-+Tomb-pano.jpg.html>

I’m unsure I’d have fared better with the 10 (read 15) mm UWA I had in the bag 
and that I was too lazy to take out.

I might sell it after the Covid19 crisis btw. And yet, it’s nearly as good as 
the Oly 7-14 I used to have.


Amities

Philippe



> Le 25 mars 2020 à 06:38, Moose <olymoose@xxxxxxxxx> a écrit :
> 
> Oops, second great reason to choose this lens, it does EXIF!
> 
> On 3/24/2020 7:10 PM, Wayne Shumaker wrote:
>> At 3/24/2020 02:05 PM, Moose wrote:
>> 
>>> Extra, Super, Ultra, Hyper. Sounds like descriptions of star ship drives. 
>>> But also wide angle lenses. :-)
>> I was going to say gasoline. But then we would need Nitro lenses.
>> 
>> Even with the 20mm, I started to try to get wider with stitching. The result 
>> from PS using the 20mm was pretty bad. Perhaps I didn't use the correct 
>> settings.
>> ...
> 
> My rule for stitching is to use narrower AoV FLs. With the Tamron 17-35 on my 
> 5D, if 17 mm wasn't wide enough, I'd go to 35 mm, vertical and take a bunch 
> of shots for the later stitch.
> 
> Here's one done that way at Ship Harbor in Acadia. Nine vertical, 35 mm 
> shots. Awesome printed across two pages in a lay flat book! 
> <https://galleries.moosemystic.net/MooseFoto/index.php?gallery=Travel/NorthEast_2009/MtDesert/ShipHarbor&image=_MG_8088-96ia.jpg>
> 
> As I think about it, I remember the same basic technique worked well with the 
> µ4/3 Oly 9-18 zoom. Shots @ 9 mm didn't work at all well. I've got great 
> panas with that lens done that way. Later, I went to making pana stitch shots 
> with the 12-60 PLeica. This was done @ 24 mm eq. 
> <https://photos.app.goo.gl/1VbJtr4tc3E5WsMr9>
> 
> And stitched in Hugin, to put this one in context. 
> <https://photos.app.goo.gl/TNF3EBnSAZTdHXEE6>
> 
> I think that, even though we don't notice them, there are distortions in the 
> wider lenses, or zoom settings, that disturb the Adobe panorama engine(s). 
> The other advantage of this technique is greater vertical AoV. It's easy to 
> forget that in panorama stitching, then find it wasn't enough.
> 
> Hugin is generally the better stitcher. Free, more powerful, more controls, 
> quirky (to be kind) interface. On a lot of landscapes, much better than PS. 
> But just recently, it simply choked on one that PS did fine. Very powerful 
> tools, such as the ability to choose control points.
> 
>> This scene doesn't look bad. Just because you see it every day. Was this a 
>> film shot?
> 
> Oh my, no, it's my second shot with 10/5.6 Heliar on A7, taken last Saturday.
> 
>> I will have to get out my  CV 12mm and do some comparisons. As always, 
>> interesting information. The 10mm does stretch the tree branches in the 
>> corners quite a bit.
> 
> Indeed it does. An argument in favor of gong to a wider format crop.
> 
> And it will make heads at the sides wide. I was just wondering what to do 
> about that effect in a shot of our little group in a church in Dublin, and 
> that's only a 14 mm eq.
> 
>> One WA landscape trick I heard, with something in the distance being tiny, 
>> is to put it toward the top of the frame to enlarge it.
> 
> I don't get it.
> 
>> I'm wondering if a curved monitor might render WA shots better for our 
>> eyeballs?
> 
> No idea.
> 
> All Sewn Up Moose
> 
> -- 
> What if the Hokey Pokey *IS* what it's all about?
> -- 
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