Gorlitz Trioplan
David Nebenzahl
know about a 105mm f/3.8 Meyer Gorlitz Trioplan (in Compur-Rapid)?
Thanks to anyone who can illuminate this subject.
--
As for lean, these grossly, grossly, grossly overweight all-American
lard-ass behemoths come in at 155% of the mass (293,500 lbs vs 86 t) and
42% of the power (3600 hp vs 6.4 MW) of your typical contemporary
Euro-weenie locomotve. A good thing extreme measures are being taken
to keep oil cheap.
- Richard Mlynarik, spot-on as usual, comparing Made-in-U.S.A. to European
railroad equipment in ba.transportation
Richard Knoppow
"David Nebenzahl" <nob...@but.us.chickens> wrote in message
news:3EA77254...@but.us.chickens...
> Can anyone here advise on the coverage, quality and any
other useful things to
> know about a 105mm f/3.8 Meyer Gorlitz Trioplan (in
Compur-Rapid)?
>
> Thanks to anyone who can illuminate this subject.
>
> --
lens. My old lens list gives the coverage of f/4.5 and f/6.3
Trioplan lenses as 64degrees. This is probably stopped down
to f/22 or smaller because its optimistic for a Triplet.
Probably about 55 degrees is more realistic for other than
the smallest stops.
Triplets can be of very good quality but do not have a
wide a coverage as an equivalent Tessar. For good corner
sharpness the focal length should be a little on the long
side for the format.
Meyer made Triplan lenses in speeds to f/2.8 for 35mm
cameras. This is an odd stop, probably dictated by the
maximum open aperture of the shutter. Its likely the design
is actually an f/3.5 lens. The Compur-Rapid shutter appeared
about the late 1930's but was made until at least the
1950's. The lens is probably from a 3x4 folding camera of
some sort. A great variety of roll and plate back folders
were made during the 1920's to 1950's. This was probably
from a medium priced one, deluxe models would have had a
Tessar of some type.
Hugo Meyer of Gorlitz was a quality manufacturer. They
made a wide variety of lenses and also rangefinders for
folding cameras. One occasionally finds a Speed Graphic with
a Meyer rangefinder on it.
There is no way to tell about an individual lens without
trying it.
Can't tell you much else.
--
---
Richard Knoppow
Los Angeles, CA, USA
dick...@ix.netcom.com
ArtKramr
>From: "Richard Knoppow" dick...@ix.netcom.com
>Date: 4/24/03 2:47 PM Pacific Daylight Time
> Meyer made Triplan lenses in speeds to f/2.8 for 35mm
>cameras. This is an odd stop, probably dictated by the
>maximum open aperture of the shutter. Its likely the design
>is actually an f/3.5 lens. The
They made a 55mm F/2.9 which was in every sense a true F/2.9 lens, not a
mismarked F/3.5 lens.
.
Arthur Kramer
Visit my WW II B-26 website at:
http://www.coastcomp.com/artkramer
Stacey
>>Subject: Re: Gorlitz Trioplan
>>From: "Richard Knoppow" dick...@ix.netcom.com
>>Date: 4/24/03 2:47 PM Pacific Daylight Time
>
>> Meyer made Triplan lenses in speeds to f/2.8 for 35mm
>>cameras. This is an odd stop, probably dictated by the
>>maximum open aperture of the shutter. Its likely the design
>>is actually an f/3.5 lens. The
>
> They made a 55mm F/2.9 which was in every sense a true F/2.9 lens, not a
> mismarked F/3.5 lens.
> .
He was talking about the f3.8 lens in the OP's message Art.
--
Stacey
Richard Knoppow
"Stacey" <foto...@yahoo.com> wrote in message
news:b8ad37$7le1o$1...@ID-52908.news.dfncis.de...
Yup, should have started a new paragraph or otherwise made
it clearer.
Kodak did the same thing with an f/3.7, 105mm lens (other,
similar lesnes are f/3.5) and I think the famous f/4.7,
127mm Ektar is the same story. The others in this series are
f/4.5 but the shutter isn't quite large enough and I think
Kodak didn't want to use the next larger size, which is
considerably larger and doesn't have 1/400th second speed.