On Wed, Jul 20, 2022 at 6:22 PM Moose <olymoose@xxxxxxxxx> wrote:
> On 7/18/2022 2:08 PM, DZDub wrote:
>
> > There isn't that much to remember, really.
>
> If you say so . . . "the best combination of aperture/focus
> differential/number of shots for a few lenses & focal
> lengths. " sounded to me like a grid with too many squares for this brain.
> 😁
>
You think too much is the problem. :) I had in mind to shoot a FS of 15/1
wide open. If good, done. If not switch to FB of 30/1 wide open.
As I work with this scheme, I think FS of 15/2 wide open might be better,
or 15/1 stopped down 1 stop. I actually am getting some weird results FS
with the 100-400 with 15/1 wide open.
>> With the E-M5 II, if I recall, I had two settings, 21 slices and 31. The
> >> E-M1 II is faster, and the OM-1 much faster, so
> >> I skip the 21 setting now. Dumping files in the bit bucket later is
> free;
> >> coming up short isn't.
>
As to speed, I wonder if the 1mkIII is not similar to the OM-1. FB is
quite fast. FS is "busy" for about 15 seconds, but that's the camera
making the composite. Capture is very quick, similar to FB.
> >>
> >> This isn't MPG, mortgage interest rate, etc. folks. It's just ephemeral
> >> files that may be erased at no cost. What's the
> >> point of finding the edge that minimizes zero?
>
Only a desire to keep FS sort of relevant and useful? As I do more stacks,
I tend to agree that it is probably simpler just to bracket. It's not
exactly a fast operation to go into the menu and switch from FS to FB,
especially on the fly.
> >>
> >> I mean to retry FS; I've set it up on a button . . . but I'm learning my
> >> 12-200, and it isn't eligible. I've set it to
> >> 15 slices, @ Focus Differential 2. Some day, I may find out how it
> works.
> > I enjoy the instant feedback from FS, so I have been building on that.
>
> Interesting. I very seldom do anything more to check on shots than a quick
> glance at the screen, to make sure something
> major didn't go wrong. The only thing I can imagine checking on a bracket
> is whether I got the closest focus right. But
> I don't recall doing that in ages. If I'm not sure, I just shoot another
> bracket, making more effort at that aspect.
>
> Then again, I have many years and hundreds of "stacks" under my belt so I
> pretty much know what will work. Doesn't stop
> me from trying ones I'm pretty sure won't work. 😁
>
> And I've not had the newer Oly FS available for almost two years - and
> made the invalid assumption that it hadn't got
> better. And, as you say, I had a technique that works.
>
I have nothing to compare it to. All new to me. I hope you will remember
to tell us whether you think the newer iteration of FS is better or not.
Doesn't make any real difference, but I'm kind of curious.
> ORF files are 12 bit, with lossless compression. JPEGs are 8 bit, with
> lossy compression. I think the rule of thumb is
> one stop of DR per bit (?). So yes, it's going to work most of the time,
> so belt an suspenders Moose thinks about the
> times a red or yellow flower, bright sky, deep shadows occasionally will
> push 8 bits past their limits, and opts for
> working from the ORFs. I really hate it when I do a stack esp. one that
> requires some hand work, get into PS and Oops,
> it's not ready for prime time in some way.
>
Well, I hear you there. Probably not for the same reasons, but I have many
failures. Stacking software is not perfect either. Wind, geesh.
I assume you are talking the 100-400 here, not f2.8 on the 12-40?
>
Most of my attempts involve the 100-400, yes -- now that I've got one. I
did a few with the 12-40, sometimes f2.8 and sometimes f4. Some benefits
accrue in the close focus areas and the long end.
> Another benefit to doing a
> > "short stack" from the photos the camera has used in FS is there is no
> > automatic crop of the resulting image. I've saved a couple images I
> liked
> > that I had failed to frame with sufficient margins so that the camera
> > cropped off something I really wanted in the final image.
>
> There is a thin frame in the VF, but it looks easy to miss.
>
It's *very* thin on my camera. One has to look for it. It doesn't force
itself upon one. Still training myself. FB has saved a shot more than
once!
Joel W.
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