After wandering about for months in the fora of DVinfo, I am a happy owner of an A1 and Letus Extreme.
Here are 2 short movies from Aegina, an island about an hour south of Athens, Hellas.

http://www.snapdrive.net/files/516833/Aegina%20Canon%20XH-A1.mp4
The first one is just the camera, handheld.

http://www.snapdrive.net/files/516833/Aegina%20XH-A1%20Letus%20Extreme.mp4
The second one is the first try with the Letus, again all handheld.

By the way, for those of you who think about getting one and using it handheld... buy a shoulder support definitely!
That thing is heavy!

hmmm, your links dont seem to be working

Right click and choose "save link as"

I liked it... I like the 2nd half better than the first half mostly because of the pace of the editing...

What lenses are you using?

It seemed like a couple of the shots had the shutter speed set a little fast?

Yes, in a few walking shots I used 1/50 to 1/100.
The lenses were Nikon 50mm/1.2 and 85mm/1.4 always fully open.

I recognize the Diana Krall Christmas album, which we listened to continuously over the holidays. A couple of tunes and the way she does them, including the Have Yourself A Merry Little Christmas, part of which you included, are instant classics. Very nice.

You got it wrong. The songs used are by Yannis Agellakas, Manos Loizos, Konstantinos Beta (in Greek) and Carlos Puebla (in Spanish). But I guess you posted in the wrong thread, no?

My apologies! I posted on the wrong thread here. I meant to comment on the Christmas movie! Sorry about that.

No worries. Cheers!

Enjoyed your video, by the way. How much light loss do you think you're experiencing with the Letus Extreme?

Stathis!
could you describe your setup on camera and adapter, F stop, how wide on camera and focusing distance.
Regards, Oleg.

The 50mm lens was at 1.2 and the 85mm at 1.4
The camera was at 2.4 with ND 1/64 and shutter speed at 1/25, except at some points were I used 1/50 and 1/100.
Focusing distance for the camera was 1.4m
All these refer to the second clip, the one with the Letus.

The first one (the A1 sola), I don't remember the settings exactly, but I had ND 1/64 all of the time and the diaphragm as open as possible to achieve shallow depth of field (nothing compared to a photographic lens of course, but anyway...). If it was overexposed I used higher shutter speed to bring it to normal exposure.

Somehow your material look soft, maybe due to the fact that you shot wide open, upless you wanted it to look that way
Steven Dempsey shoots with the same set up, his stuff looks totally different.
Its not a critique, I expect to use same setup, in couple of weeks so analyzing best possible variant in advance, do not know how he set up.
Someone said that you have to have iris in camera at least 4....
best regards, Oleg.

What you call "soft" is done in post. I colour correct in After Effects and I use a somewhat complicated series of filters, adjustment layers and blend modes, one of which is for "softening", which is actually a black glow.
I think that's where the difference is.

Thank you, that explains it! can you shoot with iris open on camera then?

I haven't had time to test the difference between open and closed iris on the camera. Thinking about it, I believe it wouldn't make much of a difference changing the iris on the camera lens, as opening and closing the iris on the photographic lens itself. Because changing the camera iris doesn't change how the scene is perceived by the photo lens, which is what matters when using the Letus.
But that has yet to be proven by test.
(tomorrow maybe)

Great, look forwards to your test,
and appreciate your effort, we all as a community learn here!

Ok, here goes.
I shot some flowers with varying ND, F stop and shutter trying to get the same exposure. I didn't use a monitor or waveform to judge accurately, but I think the results are obvious.
So, if you step down the camera using ONLY the shutter speed, with iris wide open and Shutter at 1/25, then the ground glass can be clearly seen on brightly lit areas.
If you step down using ND and/or F stop, the image looks clearer.
I believe that using the highest possible F stop on camera, then the image will be clearer, and this makes sense if you consider that you increase the depth of field this way, so the ground glass is sharply focused, as opposed to having an open iris and a more shallow depth of field.
Of course this is not a scientific test, as no scientific instruments were used, nor was a scientist present. And we all know that these are though times for scientists with 2012 approaching and all.

Thank you for your test, pictures look very sharp.
Good to know you can still shoot wide open on camera, so that light loss is minimal, I mostly concerned about low light shooting, and possible light loss.
The lowest f stop on camera is 1.7 did you have to zoom in more, so that it become 2.4?

Thanks again.

Oleg.

Yes, the zoom reading was 1.4m and F2.4 was the most open at this length.

What were the settings for the last picture you posted? I'm seeing an artifact on the out of focus light in the background there not seen in the other photos -- like you can kind of see the pin of light through the bokeh. There's documentation of this artifact elsewhere, but you seem to be avoiding it in all the other photos.

Do you remember what settings you had for each photo?

Brandon, if you roll over with your mouse you can see the settings for each photo.

no ND
F 9.5
S 1/50

I haven't noticed it until now.
What is it? Is it random?

Well, I can't find the other thread, now, but YAY! I actually don't have the Letus Extreme yet (should be here soon), and this artifact was a concern for me till now. It looks like the camera iris needs to be kept fairly open, or else somehow the bokeh is slightly see through. Makes no sense to me, but it is a great relief to know how to work around it.

Bummer about having to keep the camera open, though, because that means it'll be harder to focus on the ground glass (I'd think).

EDIT: Keep in mind my sole form of education in all matters is trial and error -- I'm sure there is someone more "head-learned" than I who can make sense of this in a technical way.

Me, I's just happy 'bout the purty pictures. :)

Me, I's just happy 'bout the purty pictures. :)

I second that !

Found the thread:

http://www.dvinfo.net/conf/showthread.php?t=106882

Thanks.
From what I see from the pictures I posted, using ND and having the iris wide open, produces a sharply focused ground glass that doesn't show through.
To my eyes the sharpest picture is the one with ND1/32 f2.4 S1/25