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National Engineers Week 2011 (EWeek) at Cal Poly, San Luis Obispo, CA.
Grand finale of EWeek: Casino Night! Lots of food, prizes, and games for the evening. Sponsored by Solar Turbines.
POLINA YAMSHCHIKOV/Missourians
Mike Bibb, president of Engineers Club, glances at St. Patrick as Pat Corcoran, Chris Millner and Mike Stagg wait for the trumpet cue for their grand entrance into the Knighting Ceremony on Friday. St. Patrick only makes two appearances during E-Week — the second being at the E-Ball — and each is significant due to its infrequence.
Engineers and heavy equipment operators from the Missouri National Guard’s Festus-based 220th Engineer Company arrived in Naco Cortes, Honduras for a two-week rotation and took part in the humanitarian mission Beyond the Horizon 2012-Honduras. In Quimistan, Santa Barbara Soldiers make progress on the lot where a brand new modified three-room health clinic will sit. (Photo by 1st Sgt. Mary L. Williams, 70th Mobile Public Affairs Detachment)
Photography of the Engineers Australia Cairns Region End of Year Gala Dinner, Cairns Pullman International, 6 Dec 2024.
GALVESTON, Texas (June 5, 2014) - The U.S. Army Corps of Engineers Galveston District celebrated the Corps’ and U.S. Army’s 239th birthday with an awards ceremony to recognize the Employee, Engineer, Regulator and Supervisor of the Year, as well as to honor staff for their contributions to the community, state and nation.
The Mormon Island Relocation Cemetery was constructed in 1954 by the Army Corps of Engineers. It was created in order to used as a new site for several cemeteries that would be submerged by Folsom Lake, newly created by the construction of Folsom Dam on the American River. Remains from the Gold Rush mining camps of Mormon Island, Salmon Falls, Negro Hill, Condemned Bar, Carrollton Bar, McDowell’s Hill, Natural Dam and Doton’s Bar cemeteries, plus five individual graves were relocated to relocation cemetery after its construction. In 1996, remains from the Prairie City Cemetery were interred after being discovered during the construction of the Prairie City Road on-ramp to Highway 50.
This camera, that retained my attention, has a strange history in the series of the German SLR Exakta’s at one of the two ends of their long carrier (1936-1970).
The « Exxakta’s » were reputed camera’s well-known in particular for the first 35mm SLR in 1936, the Kine-Exakta conceived by the engineer Karl Nüchterlein in Dresden, Germany, for the « Ihagee » (phonetic of IHG, abbreviation of Industrie- und Handelsgesellschaft m.b.H.) company. Ihagee was founded in Dresden, Germany, in 1912 by a Dutch citizen at the age of 25 named Johan Steenbergen (1886-1967) and successfully grew with its known originality at recognized quality of the produced cameras.
The World War II affected considerably the factory with the escape of Steenbergen and its family to San Francisco, California, U.S.A, in 1942. The Ihagee factory in Dresden, as the rest of the historical city, and other camera factories, was destroyed by the terrible and RAF-USAF bombing of February 13-15, 1945.
After the WWII, many attempts to recover the property of Ihagee by Steenbergen failed and very long and costly juridical actions between Steenbergen and Ihagee weaken the company. In 1961, Steenbergen obtained the rights of the brands Ihagee, Exakta and Exa but not the reconstructed factory in Dresden. As for the Zeiss industrial empire, Ihagee represents the typical fracture between « West » and « East » in the post-WWII Cold War.
The production of Exakta and the more simple very popular « Exa » (designed in Dresden in 1951) continued however and Exakta Varex in 1950’s represented a real milestone in early 35mm SLR (see my Varex IIa 1957 here : flic.kr/s/aHBqjBdz3x ). The Varex was capable of many special applications as macro/micro/tele photography. The Exakta lens mount was a standard and many lens/accessory were produced in the Exakta mount. The Tokyo Kogaku Company (Topcon, see my SuperD album here flic.kr/s/aHBqjzJ8S7 ) even adopted the Exakta mount for their SLR’s.
Two attempts for finding a modern evolution of the Varex were achieved independently in the West and in the East Germany in the mid sixties. The recreated western Ihagee Kamerawerke A.G., Berlin, produced hardly the new and rare Exakta « Real » in 1966 for a year only before rebranding Japanese Petri and Cosina SLR’s. In Dresden, under the commercial name of « Original Exakta Dresden », The rest of the Exakta company prepared the final integration of the camera industry consortium « Pentacon » in 1970. They released in 1969 the Exakta RTL 1000 conceived by the Pentacon designer Herbert Scholtz early sharing the new core chassis of the very first L-series Praktica’s released exactly at the same time. A total of 86050 Exakta RTL1000 were produced in Dresden from 1969 to 1973.
The external design of both RTL 1000 and Praktica’s L looks very inspired of the Topcon SLR’s. The Exakta RTL 1000 kept slightly the characteristic trapezoidal section of the Varex and has some specific features compared to the Praktica-L. The upper cover is made of chromed brass instead of the coppery-chromed ABS polymer of the Praktica-L a process first adopted by Pentacon that itself greatly simplified the manufacture and that was adopted later by many manufacturers in Japan.
As for the Varex, the RTL 1000 has also an original novel set of interchangeable viewers including two pentaprisms (with one photometric for TTL metering) and many different focusing screens. The camera has two shutter releases on the right and left front sides. The left one is compatible (with a small extension) with the Varex lens with auto diaphragm closing.
The RTL 1000 is an instant-return mirror SLR with a specific system for auto-diaphragm full-aperture viewing and metering (with the photomertric prism). The system is a pushing pin at 6h on the external side of Exakta lens mount triggering the diaphragm. A quite complete range of Meyer Optik Görlitz and Carl Zeiss Jena llenses) were proposed in the 1969 brochure (see below the complete list). I successfully mounted the Topcor 1.8/58mm of my Topcon Super-D (1972, see my album here flic.kr/s/aHBqjzJ8S7 ) and the Carl Zeiss Jena Biotar 2/58 mm of my Varex IIa (1957). The Topcor/Topcon has a different auto-diaphragm system and could be here operated manually at real aperture.
The vertical translation steel blade shutter is the same as the Praktica one capable of 1/1000s to 1s with a modern single speed barillet and synchronized at 1/125s for electronic flashes (1/30s for bulb flash). The mechanical timer can also extend the long exposure to 2, 4 and 8s as on the Varex. The easy film loading is the same in the Praktica-L with automatic film leader catch.
I found this Exakta RTL 1000 for 80€ by accident considering by curiosity the list of a French eBay seller, searching for a different item. I noticed that the camera had an unusual ABS silver chromed pentaprism that is more commonly encountered in black ABS. The body marking « Exakta » is arbored on the mirror cage front and the « RTL 1000 » is engraved on the front left side of the top cover, as in the first commercial brochure 1969. It has no other markings excepted a minuscule « 1Q » logo on the external bottom of the reflex cage standing for the 1rst Quality class production of the time in East Germany.
The serial Nr. 204259 is engraved inside the black film chamber on the edge right side. The light seals in the chamber are made of black velvet and the cushion foam of the mirror at the top of the reflex chamber is in perfect condition.
The camera has no sign of use and sold with likely the original standard lens Meyer Optik Görlitz Oreston 1.8/50mm Nr. 5317308 of exactly the same model as the one presented in the 1969 brochure (the cover shown the Oreston lens Nr. 4207474). The lens is in a perfect condition, with the specific auto-diaphragm system, a depth-of-field check button and an operated button to switch off the auto diaphragm. 49mm screw-on filters could be adapted to the lens. For he Exakta RTL 1000, beside the Meyer Optik Görlitz lenses, the brochure also proposed the more expensive Carl Zeiss Jena lenses (see the complete list below)
All the viewfinder and focusing screens I have with my Praktica VLC3 (1978-1981) fit to this Exakta RTL 1000. The RTL 1000 was produced with marking variations (some without the Exakta branding ) until current year 1973 where the production of Exakta in Dresden definitively stopped (the Exa camera’s continued however for a while). At this time Pentacon decided to keep and even extend (with loup version) the interchangeable viewfinder system and to release the Praktica « VLC » (3 versions until 1981) with the M42 « electric » lens mount and a special internal CdS celll metering behind the mirror (see my VLC3 here:flic.kr/s/aHBqjA73SE ).
I tested successfully the film advance and frame spacing with a blank test film and all functions of the camera work correctly and the camera looks ready for a real film test. I sourced a serviced photometric prism from an eBay seller in Slovenia and also the small extension to fit to secondary shutter release for using the Varex lenses. The mechanical coupling of the photometric prism to the shutter speeds selection is made by a specific retractable pin on the speed barillet. There is no mechanical coupling of the diaphragm settings.
The RTL 1000 has also a film sensitivity reminder coaxial to the rewind crank from 6 to 1600 ASA in orange (ISO) and 6 to 33 DIN in white digits. On the metal advance lever axis there is another reminder for the film type (color day or tungsten light, black and white). The frame counter is the same as the one of Praktica’s with an automatic reset while opening the back. The camera in hands feels a little more « dense » than the Praktica VLC3, the fully metallic advance lever and the minimum use of plastic (excepted the main shutter release and the timer lever) participate maybe to this feeling.
This RTL 1000 with the « Exakta Real » marked the last ends of the Exakta and the brand evaporated afterward progressively from the common imaginary of customers to remain only in the collector memory and amateurs nostalgia.
May 23, 2026
69004 Lyon
France
__________________________
Reproduced from the first commercial brochure Original Exakta Dresden Exakta RTL 1000 year 1969 :
Lenses
for the EXAKTA RTL 1000
Nome of lens, Type of lmoge Screw-in threod
operture ond dio- ongle cnd push-on mount
focol length phrogml (horiz,)
(mm)
Orestegon
2.8129 with
internol releose APD
Stondord lens
Oreston 1.8/50
with internol
releose APD
Oresror 2.8/100
with internol
releose APD
730 M 55x0.75 57 mm O
M 49x0,75 51 mm A
M 49x0.75 51 mm A
Flektoson 4/20 ASD 930
Lydith 3.5/30 PD 71o
Flektogon 2.8/35 ASD 62tr
Orestor 2.8/100 CS 241)
Orestor 2.8/135 PD 180
s 4/13s
from Jeno ASD 18,50
s 2.8/180
from Jeno ASD 140
Orestegor 4/200 PD 1?0
Orestegor 4/300 PD 80
s 4/300
from Jeno ASD 80
Orestegor 5.6/500 PD 5o
Cotoptric
lens 4/500 no dio- 50
from Jenq phrogm
Cotoptric
lens 5.6/1000 no dio- 2.5(l
from Jeno phrogm
M 77xO.75 80 mm Q
M 49x0.75 51 mm A
M 49x0.75 51 mm Q
M 49x0.75 51 mm A
M 55x0.75 57 nm Q
M 49x0.75 51 mm O
M 86xl 90 mm O
M 58x0.75 60 mm O
M 95xl 100 mm O
M 86xl 9O mm A
M 118x1 125 mm A
built-in fllter
turret
built-in Iilter
turret
==============
IAPD : outomotic pressure diophrogm with internol
releose (in conjunction with the EXAKTA RTL 1000
the outomotic prgsture diophrogm is converted into
the higher grode outomotic spring diophrogm) -
ASD : outomotic spring diophrogm with externol
releose - PD - prc-sct diophrogm -
CS - click siops
Accessories :
Finder Hood
Prism Viewfinder
TTL Prism Attochment for the outomotic
exposure control with internol metering
Focusing system
(Fresnel screen with circulor ground-
gloss field, microprism screen ond split
imoge rongefinder)
Ploin Ground-gloss screen
Eye Cup for the prism viewfinders
Everreody Cose
Lens Hood with screw-in threod
M 49 x 0.75
Accessory Shoe (occepts olso flosh units
with direct contoct)
Angle Finder for prism viewfinders
Focusing Telescope for prism viewfinders
Boyonet Rings ond Extension Tubes, olso
Two-in-One Ring for close-up work
lntermediote Rings with Plunger,
12.5 mm ond 25 mm, for lenses with
internol releose (for close-up work)
Minioture Bellows Attochment
Autocouple Extension Releose for lenses
with externol releose (for close-up work)
Speciol lntermediote Ring with Double
Coble Releose connection
Double Coble Releose
EXAKTA,,Vielzweck" (Multi-Purpose)
Equipment for close-up work, copying,
photomicrogrophy, etc., with its sub-
ossemblies os follows:
Lorge Bellows Attochment
Tronsporency Copying Attochment
Copying Stond
Repro Arm for Attochment
of the EXAKTA RTL 1000 on the
Copying Stond
Repro Unit (with Bellows Attoch-
ment)
Lighting Equipment for Copying
Stond ond Repro Unit
Speciol Lens T 2,8/50 mm with sunk
mount, from Jeno, for close-up bellows
ottochments
Focusing Slide
Universol Tripod
Lens Reversol Rings
Adopter Rings for photomicrogrophic
lenses
Speciol Focusing Screens
EXAKTA Mocro-Micro Photometer
EXAKTA Ring-Flosh Unit RB 1
EXAKTA Kolpofot
EXAKTA Microscope Attochment
EXAKTA Endoscope Adopter
EXAKTA Spectroscope Connecting Ring
ond Connecting Shell
EXAKTA Telescope Adopter for ostro-
photogrophy
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HOUSTON (Sept. 20, 2013) – The U.S. Army Corps of Engineers Galveston District sponsored a Great Minds in STEM (science, technology, engineering and math) event at The Rice School, a Spanish and technology magnet campus in the Houston Independent School District. The event, which is part of the National STEM Awareness Program, focused on mentoring teams of students as they competed in hands-on STEM-related activities and analyzed and found solutions to mock engineering and environmental sciences issues and projects. The Corps is committed to keeping America technologically strong by promoting STEM careers especially in underserved communities and motivating students to pursue professions in STEM. Learn more: www.swg.usace.army.mil/Missions/CorpsintheClassroom/STEMP....
Soldiers from the 1437th Engineer Multi-Role Bridge Company, Michigan Army National Guard host an open house at the unit’s Sault Ste. Marie, Mich., armory, June 13, 2015. The 1437th invited the community to observe equipment at the armory and demonstrations of their bridge building capabilities on the St. Marys River between Lake Huron and Lake Superior. (U.S. Air Force photo by Master Sgt. Rankin/Released)