Archive for the ‘ The Chronicles of Camera Craft ’ Category

Wooden Camera Workshop

I am scheduled to teach a workshop in wooden camera construction at the Oregon College of Arts and Crafts in June. The online schedule and class description is here. It takes place over one weekend with a follow-up on the following Saturday to finish up any final details. The shop will be available during the intervening week.

The camera design is a simplified version of the roll-film camera I generally make. It will be a 6 by 6 format camera made from curved wooden laminations. Custom metal hardware will be provided.

It should be a fun project and an excellent tool to add to your photographic tool chest.

Contact me if you have any questions. kurt at mottweilerstudio dot com or 503.201.9326.

Design study for P.60

Design study for P.60 - dropped sliding back.

OCAC_Wooden Camera Design_062113_Mottweiler_Register_HR

Print this to hand out to your film geek friends!

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One-Minute Camera – working out a design

The One Minute Camera design process is moving from cardboard mockups to a wooden prototype. As a first attempt, it will no doubt fall short in some ways. But I'm anxious to get some experience with it to see how it might be improved. The wooden prototype is being made of quarter-sawn fir that was salvaged from my 1928 bungalow remodel. Fir would not be a first choice for building a camera but since this particular kind of camera is often cobbled together by an amateur for use in making their own livelihood, they often have a kind of folk art feel about them. So the reclaimed fir seemed appropriate for this first attempt.

The prototype in front of a cardboard mockup

I don't know exactly how the various penetrations into the camera will play out so I chose to build it with box jointed sides and a frame and panel top. I'll be cutting holes in the back and sides before the design is finished. Then I'll have to decide how to proceed in the final version after this one has been tested. Among things to be included is the removable processing tank for the bottom of the camera. Various ideas are in play for a ground glass viewer/paper neg carrier.

Variable spacing box joints.

I dusted off my WoodRat joinery machine for this job. Since it doesn't rely on hard spacing setups, I varied the spacing of the pins a bit as is sometime done with historical examples of dovetail spacing in camera design. I may end up sawing through some of these to hinge off a top section of the camera.

Billy and I found a couple of additional patents for this type of camera so there is now a bit more information on historical solutions to this camera design challenge. More updates will be posted as things progress.

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mini Maker Faire at OMSI

I'm going to join the other makers, gearheads, nerds and probably a few geniuses at the mini Maker Faire in September. About a hundred participants engaged in various levels of creative madness and mayhem will gather at Portland's OMSI science museum for a couple of days. Now I've just to figure out what to bring!

I've got something to offer my local friends who may want to attend. Let me know if you are thinking of stopping by.

People are doing cool stuff

visualcasualty

The other day I noticed that visitors were finding my site through something called visualcasualty. Turns out it's a tumbler blog with images and videos about whodunnit. There are, of course, a lot of design blogs, many of which I like, but this one really resonates with me.

Velophot “One-Minute” camera

One of my current projects is (re)designing a camera for street portrait photography used by photographers in Afghanistan, India, Mexico, Argentina, Brazil and many other countries throughout the world. There are a variety of approaches to the design but they all have in common the ability to process a paper negative within the camera. Re-shooting the paper negative on a built-in copy stand with some means of racking focus out to 1:1 enables the production of a positive image. Billy Baque, for whom the design is being worked out, brought to my attention an elegant design in use by a street photographer in Argentina. This camera is typical of a type that arranges for access to the interior of the camera through a back door. The same door is opened for purposes of focussing the camera.

This design typically has a hinged top lid with a viewer for image processing along with a red window to admit light for that purpose. These are masked off by various types of mechanism when a photograph is being made. Also characteristic of this design is a movable standard on slider rails inside the camera controlled by an external knob attached to a third rail that moves the standard from portrait position to copy position. Note also that the camera has two processing tanks. Stop bath is omitted in this case and a water rinse is typically done outside of the camera.

Argentine street camera

Another approach to the design is typified by a German designed camera called the Velophot. This Canadian patent drawing shows some of the distinct features of this design. Three processing tanks indicate the use of standard 3 part chemistry. The external viewer is mounted to the back of the camera where it can be used both for composing and focussing as well as for processing. The red window still appears at the top of the camera. Also notable is the use of a bellows rather than an internal sliding standard. Also notable is the use of a pair of access sleeves. Unlike the more common one sleeve design, the use of a second access sleeve makes working with wet plate techniques a possibility as well. Most of the camera designs include some kind of internal storage compartments for paper stock and finished negatives.

A Velophot "One-Minute" camera

It is interesting working on this project at the same time I'm delving into a digital camera slider design. But I have always enjoyed playing at the interface between digital and film.

Side view of a Velophot

 

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Smudgers – street photographers using the unique One-Minute cameras

While investigating the work and equipment of street photographers using "One-Minute" cameras, I stumbled upon the book by Chris Wroblowski entitled "Smudgers". It is about photographers using these cameras in various countries around the world.
Chris recently sent along photos of these cameras he has collected from Cuba, India, Morocco and Brazil. Each is a work of folk art in itself and has an accompanying illustrated backdrop for use behind the portrait sitter. In order to help fund a new project, he is now offering them for sale. Check out this article about Smudgers.

One-Minute Street Photographer’s Camera

A New Design Project

I was recently contacted by photographer Billy Baque from the Bay Area about a design project. He had become somewhat enthralled with the idea of a traditional street photographer's camera originally based upon early ferrotype cameras. An interesting site for The Afghan Camera Project includes further details on the particular Afghan version of this camera. This is a street photographer's portrait camera with in-camera processing that can produce a finished image for the customer in a span of as few as 5 minutes.

The camera is a large box with a sliding internal focussing mechanism designed to go from portrait distance to 1:1 copy distance. Internal processing tanks, paper storage and a darksleeve for access to the interior of the camera enable a portrait shot to be processed within the camera and washed outside of the camera.Once the paper negative is rinsed, it is fitted to a copy stand mounted to the front of the camera while the focussing mechanism is moved back to copy position. A photographic copy of the paper negative run through the same procedure then results in a positive print ready to deliver to the customer.

Photographer Chris Wroblewski produced a nice looking book entitled "Smudgers" about some of the photographers still practicing this kind of street photography around the world

Chris Wroblewski's book on "Smudgers"

Before contacting me, Billy had done extensive research into the cameras. You can see his blog entries here:

The Cuban Polaroid
Building a "Minute" street camera
Accoutrements for a "One Minute" camera

I'll post updates on this project as it proceeds.

P.90 Anniversary Sale

Just about 4 years ago a modest sketchbook idea took life in a form that eventually would become the P.90 lensless camera. Conceived as an easy-to-use camera with an elegant, modern appearance, the P.90 is a medium format, lensless camera with a long-standing pedigree dating back to the original Pinoramic 120 camera from 1991. That original sketch proposed a canvas for the arrangement of a simple, anodized aluminum shutter placed in the middle of a subtly curved field of beautiful wood grain. Like all the Pinoramic cameras, the P.90 design is a curved film plane camera designed to capture a wide field of view on the expansive medium format.

Unlike so many offerings in this general category, the P.90 is an uncompromising camera utilizing original design concepts executed at the highest level. Bent wood laminations used for the front and back of the camera incorporate cross-banded construction that makes the camera both lighter and stronger than typical brick-style cameras. This technique was used in constructing the famous Mosquito bombers of WW2.

Carefully chosen rift-sawn solid timber is used for the top and bottom of the camera. Considered to be simply a necessity by historical camera makers, rift-sawn material is more dimensionally stable and reliable in service than the typical, less expensive, plain sawn material. The combination of bespoke, cross-banded lamination and rift-sawn material is unique to the P.90 and Pinoramic 120 series cameras and gives them their unique appearance.

The P.90's hardware is designed and made specifically for this application. Each brass component is given the same level of consideration as the custom woodwork. Both form and function are carefully designed to bring beauty and functionality into harmony in the final result. Very few contemporary builders of wooden cameras give this same level of attention to hardware that  they do to the woodwork.

This level of attention to detail makes a P.90 is an investment you will be proud of and enjoy for a long time to come. And with the no-questions-asked return policy, there is no risk in making your purchase.

P.90 cameras are a limited edition and production is nearing the end of the run with the remaining stock dwindling quickly. The last chance to own a P.90 is near. With the week-long anniversary celebration there will never be a better time to buy a P.90. Orders placed between June 9 and June 15 will receive 10% off of the standard price of $975.00.

Purchases can be made either at the website store or the Facebook P.90 page.

As encouragement to try out Dwolla's new cash payments system, purchases made using their service will receive an additional $20.00 off of the standard price. Dwolla is a new cash payment system that takes the credit card middleman out of the equation. There are online and mobile apps available. Check out the Dwolla site and contact me if you might want to take advantage of this additional discount.

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Pinnin’ it

Before the spiffy new paint job - Pinoramic 120 Series 2 pinhole photo

This place is where my studio resides. We call it "The Hole" - it's down in Sullivan's Gulch, across the railroad tracks, next to the freeway, within site of the Max light rail line. By all accounts it was tough place to work at in the day - it was originally a furniture factory. A community of woodworkers of all stripes resides on the second floor.

But more to the point . . . I set up my first Pinterest board today. It is the first run at a collection of cool handmade cameras I know of. Do let me know what you may have discovered. You may also notice the new Pin it button at the bottom of the posts - in case you are pinnin things as well.

The best places

What a place to work - a Pinoramic 120 photograph of the train outside my shop window.

The Guardian newspaper recently proclaimed Portland #1 on its list of the five best places in the world to live. The others were -

St Pauli, Hamburg

Northern coast, Maui, Hawaii

Cihangir, Istanbul

Santa Cruz, Tenerife

It's an unusual list. Many of the usual suspects don't make the cut. But the reasons given for the choice - "There are planning restrictions on crappy developments. Portland has the highest number of microbreweries in the world." among others are familiar to Portlanders. I just like the sense of Portland being a place that's full of surprises but still gritty in an urban sort of way. To look out my shop window and behold the Banfield expressway, the MAX light rail and this railroad all within 50 feet of my window - that's my urban fix.

 

 
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