Bausch & Lomb Standard Baltar 30mm F2.3 T2.5 PL Wireform™ PL Conversion

Bausch & Lomb Standard Baltar 30mm F2.3 T2.5 PL Wireform™ PL Conversion

Product no.: 76/11312

Parts In Stock
can be shipped within 90 days

Price without VAT or delivery
Delivery weight: 2.2 kg

This product is a conversion of your 30mm Bausch & Lomb lens to Wireform™ movement in compact metalwork.

Image shown is of the 35mm however the 30mm will be physically very similar.

All the Van Diemen Wireform™ Bausch & Lomb conversions have uniform 100mm fronts with built in focus and iris gears.

This is a full new movement and not a simple remount.

Positive end stops are fitted for focus and iris movements.

The units are all internal focus for ease of accessory fitting.

The lenses do not grow in length when pulling focus the focus gear is therefore static.

30mm F2.0 Wireform™ lens

A full conversion to PL mount.

All the original thread based lens movement is replaced using the Wireform™ lens movement developed by Van Diemen Films.

The specially chosen pitch of the focus movement generates well-spaced focus scales right down to the macro end.

The lens has solid end stops at iris position fully open and fully closed. The focus movement also has solid end stops at each end of the full movement. The lens has industry standard drive gears for focus and iris at a fixed element throughout the series. 

All Van Diemen Wireform™ conversions are now supplied with dual iris scales as a standard feature and uniform 100mm front diameter, however, can also supply other larger diameters on request.

Additional product information



30mm Wide Angle                 22/01/19

Nominal Focal Length



F 2.3-T2.5

Max Stop


Front Diameter


Length to PL Flange



0.85 kg

Iris Gearing Dual Scaled

Ø107mm 32DP 132 Teeth

Focus Gearing

Ø107mm 32DP 132 Teeth

Frame Coverage

 Super 35mm

Min Distance (marked)




Back Focus adjustment




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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