72/7296 Anamorphic 50mm B&L LOMO SQFR to RF IF IWF Conversion

72/7296 Anamorphic 50mm B&L LOMO SQFR to RF IF IWF Conversion


Anamorphic 50mm Bausch & Lomb/LOMO Square Front to Round Front Internal Focus IWF Conversion  

A full conversion using the anamorphic focusing unit from a 50mm LOMO together with a 50mm Bausch & Lomb Standard Baltar prime lens. No original LOMO mechanical parts are reused.

These conversions benefit from the new IWF (Inverted Wireform™) lens movements providing even movements with a good feel and excellent close focus performance. This conversion overcomes all the limitations of the original product providing smooth movements, industry standard gearings, all in a conventional cylindrical body. 

The lenses have static gear positions located in the same place relative to the film plane on all focal lengths. Each has solid end stops for focus and iris drives. 

Dual focus and iris scales on all focal lengths.

Minumum Super 35 coverage. Precise coverage of each converted lens combination can be supplied at the time of conversion.

The lens has a 3/8" access port for support systems.

The front ring has a static 110mm x 0.75mm thread facilitating the mounting of filters and accessories and has a unifom diameter of 114mm for all focal lengths.

Please note: Supply of donor prime lens and anamorphic are NOT included in the conversion price.


Lenses are supplied in PL or LPL mount with other options available on request.

SKU: 72/7296

    LENS 50mm B&L/LOMO SQFT Anamorphic IWF Conversion          080119
    Nominal Focal Length 50mm
    T/No. T2.5
    Max Stop T22
    Front Diameter 114mm

    Length to PL flange

    Overall length



    Weight 2.5kg
    Iris Gearing Dual Scaled Ø135 32DP 168 Teeth
    Focus Gearing Ø135 32DP 168 Teeth
    Coverage Minimum Super 35
    Min Distance (scaled) TBC

    Back Focus Adjustment

    Shims behind the PL Mount


    Van Diemen aim to deliver within 90 days of receipt of order and 50% deposit/prepayment. We are unable to guarantee delivery times as they vary according to factory loading and availability of parts at the time of order.


    Various methods of payment are available via the website which are detailed in the website order processing. We do not accept Pay Pal payment for lens conversion work as Pay Pal terms and conditions conflict directly with the necessary conditions we work under for conversion work.


    We offer a full 2 year warranty with every Van Diemen Wireform™ product. This however does not extend to optical units on conversion products as they are supplied direct by the client.


    Warranty is applicable ex works Camberley, UK. It is the responsibility of the client to cover shipping and insurance to and from Van Diemen for all product sales and warranty work.

    Delivery Terms on Established Products

    Van Diemen Films Ltd now offer a 'Call In' service to clients in order to reduce the down time of working lenses. We offer to call in your lenses when your assembly slot comes due, normally within 90 days of order and agreement of terms. Once the lens is received, we aim to deliver within 30 days.