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Re: [OM] 35-70 F/3.5-4.5 formula

Subject: Re: [OM] 35-70 F/3.5-4.5 formula
From: "Thomas H. Hogan" <flzhgn@xxxxxxxxxxxxx>
Date: Tue, 03 Feb 1998 05:26:33 -0800
Hello Gary Reese:

I also have this lens and I am pleased with it.  I have used it
both in the normal direction and the reversed direction with an
OM T-10 ring flash and also with Kodak Infrared Film.

Although it does not have an Infrared Focus Mark my pictures 
turn out with correct focus using an opaque IR filter (#87) behind
the lens but in front of the shutter in an OM1n.

I am not absolutely certain but I believe this is a type of 
retrofocus lens that Carl Shipman described in his Olympus Books.

You might check out Lee Hawkins' Olympus FAQ web page
        http://www.astro.wellesley.edu/lhawkins/photo/olympus.faq

Okay -- let me know what you find out!

Hank Hogan <flzhgn@xxxxxxxxxxxxx>
PCACala@xxxxxxx wrote:
> 
> Hi all:
> 
> Does anyone have an optical construction cross-section diagram on the Zuiko
> 35-70 mm F3.5-4.5 lens which is discountinued?  I just got back my first rolls
> using one I picked up at the Santa Barbara show for $69.  It is a stunning
> lens, as per the FAQ.  Flawless Kodachromes with it that are contrasty as all
> get out.  I'm real curious how this was designed.  I assume the glass is in a
> plastic versus metal barrel, like the one coming in the OM2000 kit?
> 
> I'm sure glad I didn't put any money into getting my 35-70 mm F/4 fixed (the
> thing is seperating between the zoom and focus controls).  Olympus America
> said there aren't any parts available to fix it.
> 
> Gary Reese
> Las Vegas, NV
> 
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