62/11297_Ross London Xpres 38mm F1.9 Compact Macro SMW Conversion

62/11297_Ross London Xpres 38mm F1.9 Compact Macro SMW Conversion


This product is a conversion of a client supplied lens to PL mout using the Wireform™ system.

The 3rd Generation Van Diemen Ross London Xpres 38mm has a complete lens movement which benefits from the Van Diemen patented Wireform™ lens focusing system.

Parts are available from stock for this conversion.

All Van Diemen Ross conversions have uniform 100mm front diameters.Other larger diameters possible.

Focus and iris movements have solid robust end stops.

Industry standard focus and iris gears are fitted positionally fixed on same diameter.

The lens is internal focus with a static front for mounting accessories.

Double sided iris scales are a standard feature.

The variable pitch Wireform™ lens movement allows temperature stable smooth movements.



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


SKU: 62/11297

    LENS 38mm Ross Xpres Compact WF
    Nominal Focal Length 38mm
    F/No. 1.9
    Max Stop 16
    Front Diameter Ø100mm (Ø104mm Option )
    Closest scaled focus 1' 2"
    Weight TBA
    Iris Gearing Dual Scaled Ø 107 32DP 132 teeth Mod 8
    Focus Gearing Ø 107 32DP 132 teeth Mod 8
    Angular FOV (Academy **) Academy
    Min Distance (scaled) 1' 2"

    Lens construction


    Wireform™ variable pitch lens movement


    Back Focus adjustment Shims (Fitted Nominal 0.1mm)


    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.