HELIOS 44-2 58mm T2.1 – MKII Rehousing


Important: The estimated delivery for MKII lenses is 10+ months.

The all-new and improved MKII Rehousing. Same legendary, unique Soviet optics, but even better mechanics, improvements and new features, including:

  • Completely New & Improved Design
  • Internal Focusing System
  • Full clip-on Matte Box compatibility
  • Shimmable Stainless Steel PL / EF mounts
  • Increased 300-degree focus ring rotation
  • Unified Focus and Iris Ring positioning on all lenses
  • Improved Close Focus
  • T-stop markings
  • Reverse direction focus scales
    Reset options


Helios 44-2 58mm T2.1 (F2) is a legendary lens, but it’s about to get even better!

Our goal was to bring out the best in this lens but addressing the mechanical quirks and limitations of the original body that make it unsuitable for professional, high pressure work environments where everything must perform at 100%.

By creating a new housing for this much loved lens, with improved its usability for video production considerably. Gone is the confusing preset aperture control, unreliable M42 screw mount and its wobbly body. Instead we now have a rugged, well designed and carefully assembled body that provides plenty of useful features, like integrated follow focus gears, permanent PL or EF mount, expanded focus distance markings, which can now be made imperial as well as metric, plus many more that you can learn about below.

Please note, if you are planning to use these lenses with 35mm film cameras such as Aanton 235/535, Arri 235/435/535, etc, then you will need a replacement iris ring to get enough clearance above the mirror chamber. We can provide these replacement rings free of charge or install them when assembling your order, so please let us know if you need them once your order has been made.

Additional information

Weight 1.5 kg
Select Donor Optics

Rehousing + Donor Optics (optics provided by IronGlass), Rehousing only (client provides optics)


  • Sensor Coverage: 24×36 mm Full Frame
  • Focal length: 58mm
  • Outside diameter: 95mm
  • Filter size: 92mm
  • Aperture: 1:2
  • Min Focusing Distance: 0.5m
  • The angle of View (FF): 40°
  • Focus Throw: Approx. 270°
  • Aperture Blades: 8 (IronGlass can install a 16 blade version)
  • Aperture Range: T2.9 – T16
  • Minimum Focusing Distance: 0.5 metters
  • Focus ring rotates 270 degrees
  • Viewing angle: 40 degrees
  • Diaphragm scale: from 2 to 16
  • Quantity of petals of a diaphragm: 8
  • Inside: 6 glasses in 4 groups
  • Modul Focus & Iris gears: 0.8(32pitch)
  • Weight: 550 gramm

Additional Specifications:

  • 95mm O.D. Fronts
  • FF / LF Sensor Coverage
  • Imperial / Metric Markings
  • Black & White body color options
  • Optional Optical Modifications

Payments, shipping, warranty


Processing time for modified lenses is 2-3 months and for rehoused lenses 8+ months.

IRONGLASSADAPTERS guarantees the condition of every item as it is described on our Web site. If you are not satisfied that your item is as described, return your purchase within 30 days of its original shipment date for a refund.

UPS fast mail

UPS fast mail

Delivery time
8-15 days

Ukrposhta Standard mail

Ukrposhta Standard mail

Delivery time
30-40 days

Payment methods

We take care of each of you by offering various payment methods: PayPal, VISA, MasterCard, and other global debit & credit cards.

With this variety, you can rest assured that your online shopping is safe. Choose a convenient payment method and save your time!

We offer the following payment methods:

VISA Electron

VISA Electron

Visa Maestro

Visa Maestro



American Express

American Express

1 year warranty

Our warranty covers all parts and labor associated with fixing any issues related to the housing and mechanics of the lens. It does not cover damage or age-related deterioration of the optics themselves. It also does not cover accidental damage or damage from misuse.

Please note, the warranty is non-transferable.

1 review for HELIOS 44-2 58mm T2.1 – MKII Rehousing

  1. zoritoler imol

    I like your writing style genuinely enjoying this site.

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