8mm Forum: Can anyone help me please.

»	8mm Forum » 16mm Forum » Can anyone help me please.

UBBFriend: Email this page to someone!

Author

Topic: Can anyone help me please.

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 06, 2016 05:44 PM

Hi I could really do with a bit of help please.

I need a few cm`s of tubing.

It needs to be 42.5mm measured on the outside and the inside hole if you will be 40mm.

Failing that some flexible plastic 1.25mm thick.

I can wrap around the lens, rather than a pop over sleeve as above.

Any suggestions or ideas or help etc greatly appreciated. I think I might ned some paul tech here.

Thanks Mark.

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 06, 2016 05:46 PM

Where on earth are we going this time Mark??????

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 06, 2016 05:57 PM

Just lens fitting sleeving Andrew.

Best Mark.

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 06, 2016 06:01 PM

What the f for Mark????

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 07, 2016 04:26 AM

Simply to allow me to use an elmo 40mm sized lens fitting in an Eiki 42.5mm barrel.

Its a shame there isn`t more variance between the two as 1.25mm is`nt a lot to work with.

Very easy to work up from an eiki to a B+H howell for instance.

Best Mark.

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 07, 2016 04:56 AM

Won't a little shim steel assist here Mark, for your needs with this particular one?

We have plastic and brass sets of both at work, all different thicknesses. Not mega bucks to buy either.

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 07, 2016 06:31 PM

I guess not then.

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Keith Wilson
Expert Film Handler

Posts: 104
From: England
Registered: Jun 2015

posted December 08, 2016 04:34 AM

I use a paper till roll and a bit of tape
thats really cheap

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 08, 2016 04:39 AM

Better still Keith! [Wink]

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 08, 2016 05:02 AM

Hi Andrew what sort of shim is it please.

Would that sit around the lens OK ?

Best Mark.

| IP: Logged

Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted December 08, 2016 05:14 AM

Any really Mark, it's just flat material in sheet form that can be cut to any size as precisely as you care to make it.

The good thing about using either plastic or brass shim material is you can make up any small thickness you would like with such accuracy, you would gain precisely the fit you would desire for these things.

In this case, you would simply make up a sleeve from two separate pieces, one 1mm thick, the other .25mm thick.

this would then hopefully give you a nice snug fitting lens Mark.

Practically any material would suffice, so long as you can measure it accurately with say a micrometer and then cut it to size. Even an old tupperware lid or the likes may measure ideal just by trial and error so long as you can measure these things precisely as you look around.

It just needs to be a material with no "give" in it unlike an old fag packet or cereal box for example, which is why materials like brass, steel or even plastic are better for this purpose.

--------------------
"C'mon Baggy..Get with the beat"

| IP: Logged

Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted December 10, 2016 05:05 PM

How about a toilet roll? [Big Grin]

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

| IP: Logged

David Fouracre
Expert Film Handler

Posts: 123
From: Staffordshire, United Kingdom
Registered: Aug 2013

posted December 11, 2016 05:40 AM

Just a thought.....
What about a short piece of heatshrink tube,available in many sizes.
When shrunk on to the lens barrel, it may need two thicknesses, but could work.
Best
David

| IP: Logged

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 11, 2016 09:06 AM

Thanks for all the advice people.

I`ve manged with some bits of card and a piece of paper, its working well but do need to do a better more permanent, better job of it.

Best Mark.

| IP: Logged

All times are Central

Printer-friendly view of this topic

UBB.classic^TM 6.3.1.2