Cooke 28mm Speed Panchro PL Mount Conversion Only. (For lens supplied scroll to 63/111160 below)

Product no.: 63/11116 (Type: Conversion of owner supplied lens)

Parts In Stock
can be shipped within 90 days days

Price without VAT or delivery
Delivery weight: 2.5 kg

Image shown is representative of the product only.


Free service of optical unit prior to conversion

Wireform™ lens movements wear free and silent.

Uniform front lens diameters at 100mm for accessory mounting. Larger diameter optional 104,110 others possible

Industry standard gears for focus and iris.

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

LENS 28mm 
Nominal Focal Length 28mm
T/No. 2.3 (f2.0)
Max Stop 22
Front Diameter 100mm (Other larger diameters possible)
Length (front to focal plane) 93mm
Weight 0.45kg
Iris Gearing Dual Scaled Ø89mm 32DP 110 Teeth
Focus Gearing Ø89mm 32DP 110 Teeth
Angular FOV (Academy **) TBA
Min Distance (scaled) 6"

Lens construction


9 elements 7 components

Designed in 1931

Back Focus adjustment Shims



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.

Type Conversion of owner supplied lens

Selection: Cooke 28mm Speed Panchro PL Mount

Product no. Type Price
63/11116 Conversion of owner supplied lens £2,970.00 *
63/111160 Van Diemen Wireform™ (Lens Supplied) £5,250.00 *
Prices without VAT or delivery
Browse this category: Cooke Close Focus Lenses