Ingemar:
I have a 500mm f8 mirror telephoto by Cambron that works exactly like a
Zuiko lens, looks like a Zuiko, but comes with it's own filter kit built
into the top of the lens case. The price was considerably less than Zuiko
(over 65 0.000000e+00ss).
Brad
-----Original Message-----
From: John Petrush <jpetrush@xxxxxxxxx>
To: olympus@xxxxxxxxxxxxxxx <olympus@xxxxxxxxxxxxxxx>
Date: Sunday, May 10, 1998 10:38 PM
Subject: Re: [OM] Telephoto lens.
>
>->
>>Ingemar Uvhagen wrote:
>>
>>>Friends,
>>>
>>>I have an OM-10 with a few Zuiko lenses. Now, I am looking for a
>>>telephoto lens of 400 mm or 500 mm. It seems however, that getting a
>>>Zuiko is more than difficult (too few on sale) and they seem to be too
>>>expensive for my wallet, so I want to know if someone can recommend some
>>>other brand e.g. Tokina, Tamron, Vivitar etc. How are these in
>>>comparison to Zuiko lenses when it comes to sharpness, colour and
>>>general quality?
>>>
>
>Ulf Westerberg <ulf.westerberg@xxxxxxxxxxxxxxxxxxxx> replied:
>
>>Hej Ingemar
>>
>>My favourite choice was and is the Sigma APO 400. Not at all in the same
>>league as the Zuikos, but still very much optics for the money. Note that
>it
>>fudges somewhat regarding focal length, comparing it to my Zuiko 300/4.5
>>with and without the 1.4x converter (420 mm), I'd say it is around 370 mm
>>instead of 400. Doesn't sound very much but when shooting small birds etc.
>>this little difference can be crucial. The same goes for the Tokina SD
>>version, of which I was not too impressed BTW. (Other list-members have
>>expressed their satisfaction, though). The Sigma non-APO version is the
>same
>>mechanically (not much to brag about) but optics are far inferior to the
>>APO-version.
>>
>>IMHO the Zuikos 300/4.5+1.4X and 400/6.3 are in a class by themselves.
>>
>
>Ingemar,
>
>I would ask what is your prime target with such a long lens? My primary
use
>for telephoto lenses are motor sport, where lens speed is absolutely vital.
>Shooting at f/2.8 or f/4 with ISO 400 film is required on all but the
>brightest days in order to get fast shutter speeds necessary for targets
>moving at 180 MPH. Maximum apertures of f/5.6 just are not an option,
>otherwise all you have are well exposed blurs. It is for this purpose I
>selected a Tokina 300mm f/2.8 AT-X APO telephoto. For my application, it
>works well, and for my budget, well even the Tokina broke the bank for a
>while. Sure, I'd love a Zuiko 350mm f/2.8. Perhaps the wife won't mind a
>second mortgage <g>.
>
>The 300mm f/4.5 and 400mm f/6.3 Zuikos are, as Ulf said, in a class of
>excellence apart from any third party alternative. Were my subject matter
a
>little less speedy, I would consider them. Perhaps as my interests evolve
>such a lens will have to be added to my collection :-).
>
>You can browse Sigma's website at www.sigmaphoto.com
>or Tokina information at www.thkphoto.com
>or Tamron (and Bronica) info at www.tamron.com
>or, last but not least, Vivitar and be found at www.vivitarcorp.com
>
>A quick look of choices shows a 300mm f/4.0 and a 400mm f/5.6 APO from
Sigma
>in the low to mid $600 range, or a 300mm f/2.8 for $2200 and a 500 f/4.5
APO
>for a mere $3250; Tamron sports a 300mm f/2.8 LD for $2200; Vivitar offers
>nothing in your range in manual focus mounts and Tokina has a 400 f/5.6 SD
>for about $250. The 300mm AT-X has, unfortunately, been discontinued and
>its successor is not available in any manual focus mount. The Zuiko 300
>f/4.5 is listed at $680 from B&H as of March (pre price increase days).
>
>No matter what, your wallet is going to feel it. Lots of millimeters and
>fast f/ratios cost. The only advice I can offer is avoid any mirror
lenses.
>They have no adjustable diaphram (f/8 is all you get) and their contract is
>*very* low because of the central obstruction.
>
>Good luck,
>John P
>
>
>
>
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