View allAll Photos Tagged Computar
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
exposed at f22 for 1/400 second using cable release
Instax mini 800 ISO film held in Bronica Polaroid Land Pack back mounted on laminated 1/8" card stock in place of ground glass - "scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
I was interested in the flare performance of the Computar lens so I framed this shot to partially reveal the sun. Instax inverted overexposure to black as expected, but I was pleasantly surprised by the amount of shadow detail remaining given the bright haze. The glare was very pronounced on the ground glass but Instax subdued it quite well.
An anecdote from Lynn Jones, one of the creators of the Symmetrigon lens design who frequents online forums, gives an insight into it's history:
"Re: The Computar lens and ULF coverage.
Hi,
I worked for DO/Fujinon/Graphic-Kowa, Later VP of BBOI/B&J, still later starteded my own company in Texas. After the demise of BBOI/B&J, the owner/president and my career long friend, J.D. "Jack" Callahan started Kyvytar in Jersey and then moved to California. He had a deal with Kowa and he may have had some additional KGraphics made under his name.
I'm one of its 3 fathers. It is a 4 element metrogon/topogon type, all air spaced symmetrical lens designed specifically for view camera use by Burleigh Brooks Opticas, Inc. Conceptualized primarily by Jan TerLuow and to a lesser extent by me, computer designed by Dr. John Lawson, manufactured by Kowa Optics. It was made in 150, 180, and 210mm, all in Copal shutters. In use it has high contrast, high resolution, 70 degree coverage, and is at its best from 1:2 to infinity. They were all delivered with aluminum lens shades that permitted full swings and tilts.
I still own #006, the first lens actually completed and shutter mounted. I've done hundreds of advertising and landscape photos with it. I have recommended it to many users (even after I no longer worked for BBOI) and we have all been very happy. These were created to be competitive with typical plasmats and were quite successful until the loss of the above companies.
Lynn
Austin, TX"
Suborder Symphyta (further ID not determined)
Size: length: 5 mm
This tiny sawfly larva is feeding on flowering St. John's Wort (Hypericum)
Computar 55/2.8 on Nikon PB-6 bellows (close to full extension).
64 natural light exposures stacked in Zerene Stacker.
View larger!
Vivitar 90mm f/2.8 Macro + 2X Teleconverter
[ 0.005 sec (1/200) | f/4 | FLength 90 mm | ISO 100 | Manual exposure | On-camera strobe ]
Despite it not being in an exceptionally good state, this lens is a true gem in my eyes. Not only is it very small (with a diameter of ~40 mm) and lightweight, but also extremely well corrected for CA, incredibly accurate in it's color-reproduction (at least in my perception) as well as exceptionally sharp among it's (limited) aperture range.
To me it feels like one of the top-of-the-line vintage lenses from german manufacturers (and that's pretty great in my book...).
Shot with a "Computar-DL 50 mm F 2.8" enlarging lens on a Canon EOS R5.
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
exposed at f22 for 1/60 with Hoya 1B filter
Instax Wide 800 ISO film by Fuji (10.6x8.4cm) in 4x5 holder
"scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
Selective focus by swinging and tilting front standard, perspective corrected with rise
So as not to imped the use of my regular computer, I brought up my old computer and monitor from the garage to try to rescue the data on my hard drive.
IMG_0168
A abandoned factory near the river Aire, the works for transformation into houses is beginning?
Shot with Computar 12.5mm
"Come sit, have a drink and enjoy the evening!"
Still trying to find the 'sweet spot' of this lens.
Computar 12.5mm f/1.3
[ 0.033 sec (1/30) | f/1.3 | FLength 12.5 mm | ISO 400 | Manual exposure ]
Permission graciously granted to camera-wiki.org on March 5, 2015 by eBay seller Kenward Griffith to use these images in the article Camerz.
All rights reserved.
From Ken's description:
"The Camerz ZII is a single lens reflex, long roll film camera, using 100 foot rolls of 70mm film. Before digital, it was the school photographers choice, getting about 650 to 700 images per roll. The negative is about the same as the 645 format (6mm x 4.5mm or 2 1/4" x 1 5/8"). It is fully electric (120 volt) - motor drive - film advance and shutter. I used this camera for schools and proms. It is a workhorse! Camera with case and cords weights 31 pounds. This camera comes as a COMPLETE SET including padded case, film back, two shutter release cords (one never used), sync cord, power cord, film back connection cord, a 0.5 diopter (needed to do close up head and shoulders portraits), lens hood, and lens cap. The camera comes with a Computar-Camerz, 1:4.5, 75-150mm zoom lens (made in Japan). I used this camera personally and I just now plugged it in and it seems to work great. New, this camera cost me around $5,000.00.
Inquires welcome.
Reason for selling: I am a 64 year old retired professional photographer. I have been in photography since I was 20 and full-time in my portrait studio for the last twenty-seven years.
One thing I forgot to mention is the camera's ID system. A "camera card" can be inserted into a slot on top of the camera with information (such as name, grade, teacher, etc.) and that information is recorded at the bottom of the negative. The camera actually takes a photo the the information on the card for each exposure."
The lens in this kit strongly resembles the Mamiya M645 system 75–150mm zoom, but with an added lever for better access to the zoom control.
From my "Jamais/Déjà vu" series I began work on this semester. Constructed, lit, shot, and edited all within my tiny studio apt...
Shot with a 4"x5" large format film camera, scanned in at 660mp (28863x22933) for maximum print output of 96"x74" at 300dpi, dust removed by hand in photoshop.
pressing "L" on your keyboard can ease your aches and pains...
Camera Used: Toyo Feild 4x5 View
Exposure: 30 sec at f/5.6
Lens: 150 mm Computar
Film: Illford Delta100
Original Print Size: 48" x 38"
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
Nikon SB-20 flash fill on PC sync
exposed at f11 for 1/60 with Hoya 1B filter
Instax Wide 800 ISO film by Fuji (10.6x8.4cm) in 4x5 holder
"scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
Selective focus by tilting front standard
An old security camera lens with a very fast maximum aperture and surprisingly good image quality, great for low light shots with a twist!
The lens doesn't quite screw fully into the adapter meaning the lens is slightly too far from the sensor thus preventing infinity focus but if you take the rubber grip off the focus barrel and loosen the limiter screw you can keep on turning the focus ring past infinity to compensate and infinity focus is achieved!
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
Nikon SB20 Flash with PC sync
exposed at f27 with flash burst freehand using cable release (~1 sec.)
heavy front tilt forward and rear rise to minimize DOF
Somewhat sour fruit of my labour - work still needed with positioning, focal plane alignment, and light leaks
Instax mini 800 ISO film held in Bronica Polaroid Land Pack back mounted on laminated 1/8" card stock in place of ground glass - "scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
All is quiet on New Year's Day.
A world in white gets underway.
I want to be with you, be with you night and day.
Nothing changes on New Year's Day.
On New Year's Day.
Oly E-P2 + Computar 25mm f/1.7
Carnaval des deux rives, Bordeaux, France (GH2 + wide C-mount Cosmicar 12.5mm 1:1.4)
This is a film with my new C-mount Cosmicar 12.5mm 1:1.4, modified to fit on the C-mount to micro 4/3 adapter (see pictures below).
This lens is less sharp than the Lumix 14mm 2.8, but faster. It's vignetting a little, not a lot for this focale. It's not protubing so no problems with the GH2.
I've put a 40.5mm to 43mm step up ring to adapt a 25$ variable Polaroid ND filter (sorry the film credit is wrong)
But with this the vignetting is bigger, that's why I have to zoom and crop the image for this movie (from 100% to 130%).
I also bought a Cosmicar 6mm 1:1.2, wich seems to be sharper, I will use it with the GH2 crop function, it's being modified, I'm having it next week, tests soon.
GH2 24P
C-mount Cosmicar 12.5mm 1:1.4 always fully opened
160 asa
shutter 1/50
Step up ring 40.5mm to 43mm
Polaroid 43mm ND filter
Music : Elusive "My friend" from "Pressure Drop"
Duration : 2mn11sec
I'had also shot the carnaval one year ago with the Angenieux C-mount 25mm 0.95, link here :
link for another Computar lens on EOSHD :
www.eoshd.com/content/512-Is-this-the-scariest-GH2-lens-i...
Watch this video on Vimeo. Video created by Seb Farges.
Computar 12.5mm f/1.3 tilted by hand on GF-1
[ 1/50 sec | f/1.3 | FLength 12.5 mm | ISO 400 | Manual exposure ]
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
exposed at f32 for 1/400 with Hoya 1B filter
Instax Wide 800 ISO film by Fuji (10.6x8.4cm) in 4x5 holder
"scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
Selective focus by swinging front standard right
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
exposed at f22 for 1/30 with Hoya 1B filter
Instax Wide 800 ISO film by Fuji (10.6x8.4cm) in 4x5 holder
"scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
Selective focus by swinging front standard
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
Nikon SB20 Flash with PC sync
exposed at f6.3 with flash burst freehand using cable release (~1 sec.)
Selective focus using camera movements on front standard: tilt forward with swing left, shift left and fall
on rear standard: tilt back with swing right, shift right and rise
Instax mini 800 ISO film held in Bronica Polaroid Land Pack back mounted on laminated 1/8" card stock in place of ground glass - "scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
Toyo Omega View 45F Large Format 4"x5" monorail view camera
Computar Symmetrigon f6.3 150mm lens in Copal #1 shutter
exposed at f22 for 1/2 second using cable release
Instax mini 800 ISO film held in Bronica Polaroid Land Pack back mounted on laminated 1/8" card stock in place of ground glass - "scanned" with Nikon D5100 DSLR and macro 35mm f2 lens
The freak snow storm gave me a chance to try out the new landscape oriented back. It's now shimmed with additional spacers to bring the Instax film plane closer the ground glass.