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(Fwd) Re: [OM] 200/4

Subject: (Fwd) Re: [OM] 200/4
From: "Giles" <cnocbui@xxxxxxxxxxxxx>
Date: Tue, 20 Jul 1999 21:00:00 +0000
Hey guys, if you mean to cross post something to the list could you please 
make sure you use the olympus@ address and not owner-olympus@ address.

Giles 


------- Forwarded Message Follows -------
From:          "Tom Trottier" <tom@xxxxxx>
Organization:  ACT Productions Inc.,  199-K1S 2P3, Ottawa 
To:            Richard Schaetzl <Richard.Schaetzl@xxxxxxxxxxxxxxxxxxxx>,
               olympus@xxxxxxxxxxxxxxx, owner-olympus@xxxxxxxxxxxxxxx
Date:          Mon, 19 Jul 1999 19:30:21 -0400
Subject:       Re: [OM] 200/4
Reply-to:      olympus@xxxxxxxxxxxxxxx

You can hand hold the camera & lens *while* you take the picture on the 
tripod to help damp the vibrations. This is probably especially 
effective for exposures faster than 1/60th, since human vibrations are 
pretty slow. Olympus recommends using your finger rather than a cable 
release.

 I'm surprised that no one is selling a tripod head which incorporates 
dampers yet. I suppose that the more mass attached to the camera, the 
better, tho. How about:
 - a heavy flat plate between the head & camera?  Or attached to the 
camera if the lens is on the tripod?
 - a carbon fibre (it damps) or lead alloy Quick Release (QR) plate?
 - a big QR head with a slight concave shape that holds closely to the 
entire base of the camera? especially for the Manfrotto/Bogen 200PL-14  
3157N  QUICK RELEASE PLATE RECTANGULAR 1/4  that I use!

Perhaps leaving any QR on while handholding is even better!

Oh, Richard, I see your are one of the "stud"s at un-hannover.

Tom

--- Original Message ---
Date sent:              Mon, 19 Jul 1999 16:25:14 +0200
From:                   Richard Schaetzl <Richard.Schaetzl@xxxxxxxxxxxxxxxxxxxx>
Organization:           Universitaet Hannover

> A little bit late, hopefully not to late.
> Doug Cooper wrote:
> 
> > I'm wondering what the consensus is regarding this lens, or whether there
> > even is one.  The tests seem all over the map.  Some seem to think it's a
> > great lens, even hand-held; 
> 
> IMHO the 200mm/4.0 Zuiko is a good lens, it rendered pictures with good
> contrast, showing fine details.
> 
> I personaly have problems handholding lenses longer than 135mm, it needs
> concentration
> and short exposure times not to ruin the photo.
> A solid fixture of lens and camera helps to achieve best results.
> 
> > And what about the 2xA converter?  Someone in the archives suggested you
> > could *hand-hold* it with the converter attached! 
> 
> I was that bold. 
> No, I don't recomend it for best image quality, but with bright sunshine
> and short exposure times it's possible.
> The reason I did it was, I was so dissapointed with the results of this
> combo fixed to an tripod (... and I used an OM-4 with aperture/mirror
> prefire!). In fact the results handholding were better than the one from
> the tripod (might be a problem of the tripod head too). 

It does sound like a shutter design problem, rather than 
aperture/mirror! 
Were the apertures the same? - Gary's tests show the 200/4 is better at 
f/5.6 to 16 than at f/22-32

> The whole structure of an OM, 2x converter and 200mm Zuiko (very big
> lever, small contact with tripod head) is so instable, the very small
> vibrations induced by the shutter might ruin the photo.
> For best results, I suggest to use a bean bag with the 200mm/4.0. The
> bag will eliminate vibrations and support the lens barrel.
> 
> > That would be
> > something:  a 400mm lens that didn't require a tripod...
> 
> Not this lens, a normal tripod is just worse than handholding. Such
> "wonder-teles" exist, at a price. 
> Regards
> Richard
------------------
From:Tom Trottier, President, ACT Productions Inc.
tom@xxxxxx                      http://www.act.ca
+1 613 594-4829               fax +1 613 594-8944
199 Holmwood Ave, Ottawa, Ontario, Canada K1S 2P3
"Make it as simple as possible, but no simpler" - Einstein

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