8mm Forum: Eiki lens thread sizes please.

This is topic Eiki lens thread sizes please. in forum 16mm Forum at 8mm Forum.

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Posted by Mark Todd (Member # 96) on December 01, 2014, 04:29 PM:

Hi this is probably one for Maurice ( thanks if it is )and thank you anyone else.

But can someone please tell me the outer and inner thread sizes on a supaer sankor eiki 25mm lens please.

Also can someone tell me the external ( one thats screws in ) thread size on elmo zoom converters please.

Many Thanks Mark.

Posted by Mark Todd (Member # 96) on December 02, 2014, 12:08 PM:

Hhhhheeeellllppppp.

Thanks Mark.

Posted by Mark Todd (Member # 96) on December 07, 2014, 06:36 AM:

I am going to try to work it out myself but can someone tell me if you measure in to the depth of the thread so say the same as the front before the thread, or the outside of the thread.

Likewise on an inside the lens ring thread please.

Thanks Mark.

Posted by Maurice Leakey (Member # 916) on December 07, 2014, 09:59 AM:

Mark
Sorry that I cannot help with measurements, however, I suggest you get in touch with SRB. They recently made a special adapter ring for me to screw blue filters onto my prime Bell & Howell 2" lens.
The lady who answers the telephone is the proprietor's daughter, I eventually spoke to him, and he's been in the business for years, and knew off heart the size of the Bell & Howell lens. No doubt, he would be able to help with your enquiries.
http://srb-photographic.co.uk/lens-adaptors-1167-c.asp

Posted by Mark Todd (Member # 96) on December 07, 2014, 12:42 PM:

hi Marice that looks great, thank you, I will speak to him this week and also see if I can work out where to measure etc with a small metal ruler.

Not very scientific, and lots of options on there.

Anyone know if you measure from the valley of the thread or top please.

Many Thanks Mark.

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