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Old July 27th, 2005, 02:30 PM   #1
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thor labs adapter

Hi all,

I've been lurking for a while and finally thought it would be worth while to bring back a discussion started by Richard Mellor in "parts list" thread
http://www.dvinfo.net/conf/showthrea...6&page=1&pp=15 thread
that pulls together info on making a static adapter with parts from thor labs, centered around this tube http://www.thorlabs.com/ProductDetai...roduct_ID=1481

This thread ended without anyone posting a succesful use of this design on a dvx100. I am interested in seeing example footage and want to know if the use of two pcx lenses helps solve the need for two +10 diopters. In other words, what kind of magnification is needed for the original dvx100 (not A) to work with the thor labs style adapter?

Thanks for sharing.

Last edited by Ben Hodges; July 28th, 2005 at 12:36 AM.
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Old July 27th, 2005, 05:26 PM   #2
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Yeah, that looks great for a static adapter.
Clean look, but maybe a bit heavy?
I'd use something like this for a retail item.
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Old August 3rd, 2005, 12:45 AM   #3
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I'm constructing it as we speak. I'll let you know how it operates on my GL2. I chose it because it seems so much easier to make than the other one (http://ideaspora.net/oldskool/). Eww, PVC and gluing. I'll take screwing things together any day.

Last edited by Ben Winter; August 3rd, 2005 at 10:15 PM.
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Old August 3rd, 2005, 01:16 AM   #4
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Ben? You want to check your link? It isn't working for me - thanks - Grazie
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Old August 3rd, 2005, 01:17 AM   #5
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. . yeah, looks like the URL has "crept" under the last bracket and "slash" - - oops! G
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Old August 3rd, 2005, 08:43 AM   #6
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Quote:
Originally Posted by Ben Winter
I'm constructing it as we speak. I'll let you know how it operates on my GL2. I chose it because it seems so much easier to make than the other one (http://ideaspora.net/oldskool/). Eww, PVC and gluing. I'll take screwing things together any day.
Funny, I wrote both that tutorial, and an update about using ThorLabs parts. People seem to want to reinvent the wheel a lot around here...

Let us know how that tubing works, especially with the PCX lense... my system uses the Achromat and has nearly no vignetting.
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Old August 3rd, 2005, 09:41 AM   #7
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Jim - I'm passionate about achieving LESS DoF with my XM2 . . . Do you have any images of your truly straightforward device?

No moving parts? GREAT!

Best regards,

Grazie
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Old August 3rd, 2005, 09:45 AM   #8
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. . When I mean images, of course I meant the "results" from your camera and setup ..

Thanks - G
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Old August 3rd, 2005, 09:58 AM   #9
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Hey Grazie...

Check that thread I linked to above -- there's a series of images of the adapter in that thread. Also, here's footage.
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Old August 3rd, 2005, 10:05 AM   #10
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JIM! You total STAR! !

First, tell me there is no sound with your vcclip .. . otherwsie I'm gonna need to look behind my amp and PC copnnections - HUH!

Secondly - when the figure is pointing to the wall I can see just HOW shallow the DoF is . . great.

Thridly, you are very very close to a subject . . Do you have any examples where you are something like between 10 to 20 feet away?

I quickly scanned your tute. I think even I can do this! Hah!

Oh yes . . er . . what happens when you put a WD on the fron of this "trunk" - silly question?

TIA,

Grazie
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Old August 3rd, 2005, 10:38 AM   #11
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OK...

Added an update to my tutorial at the index.html page, so check that out before diving in to the tut. Here it is.

Secondly, what's a WD? Wide angle?

Thirdly -- for far away shots I have a few grabbed and up. Go here and scroll down to where I say I've posted some outdoor sunny shots.
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Old August 3rd, 2005, 10:58 AM   #12
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Yes . .Wide Angle ..

Brilliant Outside shots. Just brilliant!

Love the " .. outside2.jpg" with the bloke starting to walk acrioss the street. - Have you got a JPG which has the DoF the other way around? Background "soft" and the foreground sharp? Again " . . outisde.jpg" is the other way around . . if you got one? Be nice to see the sharpness on something near - with the BG soft.

What an amazing setup!

Grazie
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Old August 3rd, 2005, 11:23 AM   #13
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Well I'm glad to see this thread has brought together more links and info. Speaking of which, Graham the original links seem to work fine for me.

Jim, I certainly appreciate the work you and others have put into designing and posting tutorials on your adapters.

I started this thread primarily to see if I could find anyone using an original (non "a") dvx100 with a static thorlabs adapter setup. The dvx100 is terrible at close focus and i am wondering if the drop from its 72mm lense to a 52mm size is doable.

Ben
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Old August 3rd, 2005, 11:25 AM   #14
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Jim!

Thank you for the link to the "small" MOV clip!

Downloaded in London .. you've answered the DoF qualities for me . .thanks .. and I'm truly inspired . .again.

I may be able to get the GG machined here in London - for a very short time I used to work in a commercial ophthalmic/optical lab. I maybe able to get the GG achieved. What spec is the finished "surface" in terms of what is needed? Is there such a thing I can "quote" at the lads on the bench?

Best regards,

Grazie
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Old August 3rd, 2005, 11:42 AM   #15
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Havn't tried a wide-angle, yet. Though, given what I know of optics, so long as it is from the same lens group you've set your flange focal length to, it shouldn't be a problem.

Those are the only shots I've got up and around at the moment. Short of time around here, otherwise I'd post more. Sorry.

As for surface specs -- hmmm... dunno that one. But, finer frost than 3 micron is needed.

edit: oh, and yes -- no sound on that clip.


- jim
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