Ross London Xpres 38mm F1.9 Compact Macro Conversion

Ross London Xpres 38mm F1.9 Compact Macro Conversion

Product no.: 62/11297

can be shipped within 90 days

Price without VAT or delivery
Delivery weight: 2.2 kg

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 in PL mount 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.

Warranty 2 years  (ex works UK)


Additional product information

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. We are unable to guarantee delivery times as they vary according to factory loading and availability of parts at the time of order.


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.


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