Many vintage lenses offered for sale are simply described as "mint" or "looks clean." Unfortunately, hidden haze, fungus, oily aperture blades, dried lubricants, or stiff focusing mechanisms are all common problems that may not be immediately visible.
Every lens we sell is carefully inspected, professionally serviced where required, tested, cleaned, and honestly described, so you know exactly what you're buying—no unpleasant surprises.
A beautiful KMZ-manufactured Helios-44M, one of the finest automatic versions of the legendary Helios series. Based on the famous Carl Zeiss Biotar 58mm f/2 optical design, the Helios-44M is renowned for its exceptional image character, beautiful swirly background bokeh, and impressive sharpness.
This example has been carefully serviced, thoroughly cleaned, and fully tested. It remains in excellent mechanical condition, with smooth controls, clean optics, and beautifully preserved cosmetics, making it ready for many more years of photographic use.
The glass is particularly impressive, remaining in superb condition, making this an excellent choice for photographers looking for both outstanding image quality and an attractive original example.
The Helios-44M represents the evolution of the famous Helios-44 series, introducing an automatic diaphragm while retaining the celebrated Biotar-derived optical formula.
Manufactured by KMZ (Krasnogorsky Mechanical Factory), the birthplace of the Helios lens, these early Helios-44M lenses are appreciated for their excellent build quality, smooth mechanics, and classic Helios rendering.
Whether mounted on a vintage M42 SLR or adapted to a modern mirrorless camera, the Helios-44M continues to be one of the most enjoyable vintage lenses to use.
This lens has been carefully serviced and thoroughly tested.
Service work included:
✅ Complete optical inspection
✅ Every glass element individually removed and cleaned
✅ Internal dust and contamination removed
✅ Aperture mechanism dismantled
✅ Aperture blades individually cleaned
✅ Fresh graphite lubrication applied to the aperture mechanism
✅ Focusing helicoid inspected and cleaned where necessary, with fresh lubricant applied only where required
✅ Reassembled, adjusted, and fully tested
Everything now operates exactly as intended.
The lens is in perfect mechanical working order.
✅ Smooth focusing throughout the full focusing range
✅ Smooth aperture operation
✅ Automatic diaphragm operating correctly
✅ Aperture blades perfectly clean and oil-free
✅ Positive aperture action
✅ Ready to use immediately
The controls operate beautifully, giving the precise mechanical feel expected from a properly serviced KMZ Helios.
The optics are in superb condition.
✔ No fungus
✔ No haze
✔ No scratches
✔ No separation
✔ Crystal-clear glass
✔ Original coatings beautifully preserved
Every optical element has been individually removed, cleaned, inspected, and carefully reassembled, resulting in exceptionally bright and clean optics capable of delivering outstanding image quality.
The Helios-44M remains one of the world's favourite vintage lenses.
Expect:
⭐ Beautiful swirly background bokeh
⭐ Excellent centre sharpness
⭐ Rich contrast
⭐ Natural colour rendition
⭐ Smooth tonal transitions
⭐ Classic Biotar rendering
Perfect for:
• Portrait photography
• Street photography
• Travel photography
• Film photography
• Mirrorless camera adaptation
• Cinematic video production
✔ Beautiful original finish
✔ Bright engravings
✔ Clean filter threads
✔ Very light signs of careful use only
✔ Excellent overall presentation
The lens presents beautifully and has clearly been well cared for throughout its life.
Manufacturer: KMZ (Krasnogorsky Mechanical Factory), USSR
Model: Helios-44M
Serial Number: 8138214
Focal Length: 58mm
Maximum Aperture: f/2
Minimum Aperture: f/16
Lens Mount: M42 Screw Mount
Optical Design: 6 elements in 4 groups (Biotar type)
Focusing: Manual
Diaphragm: Automatic
Filter Thread: 49mm
Made in USSR
✔ Helios-44M 58mm f/2 Lens
✔ Front Lens Cap
✔ Rear Lens Cap
✔ Carefully serviced
✔ Fully tested
✔ Genuine KMZ manufacture
✔ Every glass element individually cleaned
✔ Superb crystal-clear optics
✔ No fungus, haze, or scratches
✔ Clean, oil-free aperture blades
✔ Smooth focusing
✔ Beautiful automatic diaphragm operation
✔ Front & rear caps included
✔ Ready for film or digital photography
Every Helios lens that passes through our workshop is carefully evaluated before being offered for sale. Rather than simply cleaning the exterior, each lens is inspected internally, every optical element is individually cleaned, the aperture mechanism is serviced, and the lens is thoroughly tested before it leaves the workshop.
This genuine KMZ Helios-44M is a particularly fine example. With superb crystal-clear optics, beautifully preserved cosmetics, clean oil-free aperture blades, and smooth mechanical operation throughout, it offers everything photographers appreciate about the classic Helios design.
While less expensive Helios lenses with an unknown history can always be found online, a properly serviced example like this provides the confidence that it has been carefully prepared, honestly described, and is ready to deliver many more years of beautiful photographs from the moment it arrives.