Lens tube. at DVinfo.net

Rich Hibner · February 3rd, 2006, 11:56 AM

Does anyone know where else to get lens tube besides thor labs. I've looked around and haven't come across any. There were links to a guy selling some on ebay but he doesn't sell them anymore.

Rh

David MD Smith · February 3rd, 2006, 12:14 PM

Hi there,

Turns out that part of a filter adapter for still digital camera involves a tube
similar to the Thorlabs one but with no internal thread and consequently no retaining rings (so you'll have to fasten your optics in there somehow).
It has 52mm threads on each end.
I haven't received mine yet so can't gaurantee their ability but I'm hoping they'll do the job (a few stacked together) as well a fitting a 50mm diameter lens.

If you look for item no. 7587264734 on the 'bay you can see for yourself.

regards,

Dave

Marco Polimeni · February 3rd, 2006, 04:19 PM

I got on eBay the item number 7583057602 to increese the distance from the Thorlabs tube.

http://img70.imageshack.us/img70/5363/img006117ob.jpg

The Thorlabs tube is the longer one in the photo,
so if you get 2 shorter tubes on eBay and find a way to hold the optics inside... But I've not yet a direct experience of this.

Rich Hibner · February 3rd, 2006, 08:20 PM

Macro,

why do you have the spacer and thorlabs? that's really long...is there a reason for that? I've seen most people just use one or the other.

rh

Marco Polimeni · February 4th, 2006, 11:20 AM

I dont know yet if I need the spacer tube or not. At the moment I'm still waiting for the Optosigma parts I've ordered.
I want just be sure to cover all the 24x36mm area and avoid the strange optical games that some time appens when you watch trough a condenser lens too close to your eye.

February 3rd, 2006, 11:56 AM	#1
Rich Hibner Major Player Join Date: Jan 2006 Posts: 218 Images: 1	Lens tube. Does anyone know where else to get lens tube besides thor labs. I've looked around and haven't come across any. There were links to a guy selling some on ebay but he doesn't sell them anymore. Rh

February 3rd, 2006, 12:14 PM	#2
David MD Smith Regular Crew Join Date: Jan 2006 Location: Oxford, UK Posts: 42	lens tubes Hi there, Turns out that part of a filter adapter for still digital camera involves a tube similar to the Thorlabs one but with no internal thread and consequently no retaining rings (so you'll have to fasten your optics in there somehow). It has 52mm threads on each end. I haven't received mine yet so can't gaurantee their ability but I'm hoping they'll do the job (a few stacked together) as well a fitting a 50mm diameter lens. If you look for item no. 7587264734 on the 'bay you can see for yourself. regards, Dave

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February 3rd, 2006, 04:19 PM	#3
Marco Polimeni New Boot Join Date: Nov 2005 Posts: 21	I got on eBay the item number 7583057602 to increese the distance from the Thorlabs tube. http://img70.imageshack.us/img70/5363/img006117ob.jpg The Thorlabs tube is the longer one in the photo, so if you get 2 shorter tubes on eBay and find a way to hold the optics inside... But I've not yet a direct experience of this.

February 3rd, 2006, 08:20 PM	#4
Rich Hibner Major Player Join Date: Jan 2006 Posts: 218 Images: 1	Macro, why do you have the spacer and thorlabs? that's really long...is there a reason for that? I've seen most people just use one or the other. rh

February 4th, 2006, 11:20 AM	#5
Marco Polimeni New Boot Join Date: Nov 2005 Posts: 21	I dont know yet if I need the spacer tube or not. At the moment I'm still waiting for the Optosigma parts I've ordered. I want just be sure to cover all the 24x36mm area and avoid the strange optical games that some time appens when you watch trough a condenser lens too close to your eye.