Independent Camera Repair · New Jersey
A lifetime behind the lens.
Precision in every repair.
From classic mechanical cameras to modern digital systems, Trescam is built on the experience of Leon Treskunov — an opto-mechanical specialist with more than five decades at the repair bench.

01 / Expertise
The kind of experience you can’t replace.
A careful diagnosis. A practiced hand. Repairs grounded in more than five decades of learning how cameras are designed and built.
Film & Vintage
50+ years of experience with mechanical film cameras, classic rangefinders and legacy bodies.
Explore serviceDigital & DSLR
Diagnostics and repair for digital camera systems, with model and parts eligibility confirmed first.
Explore serviceLenses & Optics
Optical and mechanical lens service, including focus, aperture, and alignment-related issues.
Explore serviceMedium Format
Discuss heritage medium-format systems, including Pentacon, Hasselblad and Mamiya.
Explore serviceShutters & Mechanics
Assessment of shutter mechanisms, transport systems, and precision mechanical functions.
Explore serviceSensor Cleaning
Ask about image-sensor cleaning and camera maintenance for your model.
Explore serviceFrom the workbench / 001
A repair by Leon TreskunovLeica M2 — Before & After
Full CLA + Leather Skin Replacement
A complete CLA (Clean, Lubricate, Adjust) and replacement leather skin, carried out by Leon Treskunov. These photographs from his workbench document the camera before and after the repair.
01 / Front view
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02 / Rear view
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Service notes
- Model
- Leica M2
- Service
- Full CLA
- Exterior
- Leather Skin Replacement
- Specialty
- Film Camera Repair

02 / The life behind the craft
More than five decades
at the repair bench.
From repairing Leica cameras in Ukraine to finding his first job in Manhattan, Leon carried his craft across continents.
In 1989, he arrived in the United States with his family. By his second week, he was working in a camera store on Seventh Avenue. Decades of camera service followed, including Profoto and Kyocera/Yashica.
Explore Leon’s legacy Meet Leon03 / A Reputation Earned
Recommended by camera people.
Independent references to Leon’s work stretch back years, including specialist Pentacon Six repair resources and film photography communities.
Read the historical Pentacon Six reference“
Leonid ... does exquisite work.
Customer comment published on Pentacon Six & Exakta 66 Service & Repairs, 2008.
View source04 / Getting Started
A simpler path to an expert opinion.
Tell us your model
Share the make, model, symptoms and any relevant photos.
Review what’s possible
Service availability depends on the equipment, condition, and parts.
Coordinate next steps
Confirm service and shipping or drop-off arrangements before sending gear.
Have a camera worth saving?
Tell Leon what’s going wrong.
Share the model and symptoms to start a repair conversation. Start with the repair inquiry form.