Help needed on Ikegami ICD-42E

[Jaap 0]

Hello you all ! I am the owner of several Ikegami's ICD42E/220volts camera's fitted with Computar AI 25mm lenses. I would like to change lenses to 4mm AI type. I learned from the tech-sheet that Ikegami uses

9Volts DC over pins A & C ( older type 3-pin round connector ). Since the

newer style camera's and lenses use mostly 12Volts DC will this create

operating problems ? Has anyone encountered / solved this before ?

How to proceed ? Please make a suggestion on low-priced brand / type lens ( 1/2" ) i could use.

[Jaap 0]

Again from Computar tech-sheet I've learned that Video-type lens will

take between 8 ~ 16volts DC. For normal Day-light / Night application

will a F 1,4-90 be O.K. or should I go for the slightly more expensive

F1,4-300 type ?

Still looking for a good place to buy, 2-nd hand no problem !

( I am in need of 10 pcs )

[spytown 0]

here is the lens i would suggest for you

http://www.cbcamerica.com/cctvprod/computar/vari/vari_pdf/HG3Z4512AFCS.pdf

for an additional very minor charge, Computar will put on the a/i connector for whatever camera you want over the cost of the lens. well worth it. There is no just straight 4mm a/i in a 1/2" format. This will be the closest you will get and be a varifocal so you have some play.