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Ostra 35

A 35 mm film camera you wind by hand. The shutter is mechanical, so it fires with a flat battery, in the cold, in twenty years.

First batch of 1,200 ships from March 2027

The Ostra 35 in titanium: brushed metal top plate with OSTRA engraved, knurled shutter-speed dial, orange release button, black leatherette and a 35 mm lens.
Format
24×36mm
Lens
35mm f/2.8
Fastest shutter
1/500s
Weight
310g

Three finishes, one machine

The top and base plates are machined from solid aluminium and anodised. The release button is the same orange on every camera: it is the one thing you should find without looking.

Choose a finish

Eighty-one parts. No screen.

Scroll to take it apart.

Exploded view of the Ostra 35, parts stacked from top to bottom: the top plate, the release button and speed dial, the shutter chassis with the viewfinder, the gear train, the body shell with the lens elements coming forward, the film back with its pressure plate, and the base plate.
  1. Top plate. Milled from one block of 6061 aluminium, 1.2 mm at its thinnest.
  2. Release. A short, soft travel with a click at the end, threaded for a cable release.
  3. Dials and gears. Shutter speed, film counter and the advance train, in machined steel.
  4. Viewfinder. Glass optics, 0.6× magnification, bright frame lines with parallax marks.
  5. Body shell. Cast aluminium wrapped in leatherette that you can replace yourself.
  6. Lens. 35 mm f/2.8, four elements in three groups, multi-coated.
  7. Film back. A flat steel pressure plate keeps the film within a tenth of a millimetre of focus.
  8. Base plate. Opens with a coin. Holds the one coin cell, which runs only the light meter.
Two hands hold a sage Ostra 35 up to frame a shot on a cobbled street, people walking out of focus behind.

Thirty-six frames, then you go home and wait.

No review screen means you look at the street instead of the back of the camera. The meter shows three lights in the finder: under, right, over. You set the rest by turning things.

Loading film takes about a minute

The first time, read along. After a roll or two your hands do it without you.

  1. Pull the rewind knob up until the back unlatches. Do it in shade, not in direct sun.

  2. Cartridge on the left, flat end down. Push the rewind knob back down until it seats.

  3. Lay the film flat across the gate and tuck the tip under the take-up spool. The orange dot inside shows how far.

  4. Close the back. Wind and fire two blank frames until the counter reads 1. You have thirty-six.

Why not a camera from a flea market?

You can, and many are lovely. Here is what you trade.

FeatureOstra 35A used 1980s compactA single-use camera
Fires without a batteryYes, mechanical shutterUsually not: most have electronic shuttersYes, but only at one speed
You set aperture and speedYes, with a three-light meter to helpRarely; most decide for youNo
FocusManual, with zone marksAutofocus, when it still worksFixed, sharp from about 1 m
ReloadableYes, any 35 mm filmYesNo, one roll and it goes back
When it breaksWe repair it, at cost, for twelve yearsSpare parts are scarce; often not repairableNot repairable
Price€389, once€40 to €200, condition unknownAbout €20 a roll, every roll

Specifications

Format
35 mm film (135), 24 × 36 mm frame
Lens
35 mm f/2.8, 4 elements in 3 groups, multi-coated, 39 mm filter thread
Aperture
f/2.8 to f/16, half-stop clicks
Focus
Manual, 0.7 m to infinity, with zone marks for 1.5, 3 and 8 m
Shutter
Mechanical leaf shutter, 1 s to 1/500 s and B. Works without a battery
Flash
Hot shoe, syncs at every speed
Light meter
Centre-weighted, ISO 50 to 3200, three LEDs in the finder
Viewfinder
Optical, 0.6×, bright frame lines with parallax marks
Power
One CR2032 coin cell for the meter, about a year of use
Body
Aluminium top and base plates, cast aluminium shell, replaceable leatherette
Size
118 × 70 × 42 mm
Weight
310 g without film or battery

In the box

  • 1Ostra 35, in the finish you chose
  • 1Aluminium lens cap on a short cord
  • 1Waxed cotton strap, 110 cm
  • 1CR2032 cell for the meter, already fitted
  • 1Roll of ISO 400 colour film, 36 exposures
  • 1Printed manual, 24 pages, with the exposure table on the back

Questions we get every week

Which film does it take?
Any 35 mm (135) film, colour or black and white, from ISO 50 to 3200. The meter reads the speed you set on the dial; it does not read the cartridge.
What happens when the battery dies?
The three lights in the finder go dark and nothing else changes. The shutter, the advance and the lens are all mechanical. Expose with the table on the back of the manual, or by eye.
Can I take it on a plane?
Yes. Put exposed and unexposed film in your hand luggage and ask for a hand check; the newer CT scanners can fog film in checked bags.
Where do I get the film developed?
Any lab that develops C-41 colour film, which is most of them. We list labs we trust in twelve countries in the manual.
Is the deposit refundable?
In full, until your camera ships. One email is enough, and the money is back in your account within five working days.
Do you ship to my country?
The first batch ships to the EU, the UK, Switzerland, Norway, the US, Canada and Japan. Import duties outside the EU are paid by us and included in the price.

Reserve one from the first batch

We are making 1,200 cameras in the first run. A €50 deposit holds yours; the remaining €339 is charged when it ships, from March 2027. Change your mind before then and the deposit comes back in full.

  1. TodayPay the €50 deposit; you get a reservation number
  2. January 2027Your finish is confirmed, or changed if you ask
  3. From March 2027We email when your camera is assembled and test-fired
  4. Two days laterPay the €339 balance and it ships, tracked and insured
Shipping
Free, in a recycled-cardboard box with no plastic
Payment
Card, PayPal or bank transfer
Returns
30 days after delivery, even if you shot a roll
Warranty
Two years, then repairs at cost for ten more
Ostra 35Titanium
Finish
Price€389
Due today€50
Due when it ships€339

Concept site: no payment is taken and nothing is sent.