NikonGear'23

Gear Talk => Lens Talk => Topic started by: Akira on March 10, 2024, 22:33:51

Title: Rehousing vintage lenses
Post by: Akira on March 10, 2024, 22:33:51: This Chinese company rehouses vintage camera lenses to cinema lenses. And this is a fascinating report by Media Division.

The cost for rehousing? Don't ask me. :)

https://www.youtube.com/watch?v=ybxJHUfzCM4
Title: Re: Rehousing vintage lenses
Post by: Bent Hjarbo on March 10, 2024, 23:31:25: Interesting, thanks for sharing
Title: Re: Rehousing vintage lenses
Post by: Thomas Stellwag on March 11, 2024, 00:48:17: impressive video, thanks for sharing
Title: Re: Rehousing vintage lenses
Post by: richardHaw on March 11, 2024, 01:15:57: He applied Grease to the helicoids with his fingers :o :o :o
Title: Re: Rehousing vintage lenses
Post by: pluton on March 12, 2024, 23:38:10: Quote from: richardHaw on March 11, 2024, 01:15:57
He applied Grease to the helicoids with his fingers :o :o :o
Is this bad practice? Biological contamination?
Title: Re: Rehousing vintage lenses
Post by: Akira on March 13, 2024, 00:33:13: Quote from: richardHaw on March 11, 2024, 01:15:57
He applied Grease to the helicoids with his fingers :o :o :o

A set of the fingers can be used as a sensitive tool. 8)
Title: Re: Rehousing vintage lenses
Post by: richardHaw on March 13, 2024, 00:58:46: It's unacceptable practice :o :o :o
Title: Re: Rehousing vintage lenses
Post by: pluton on March 14, 2024, 06:52:30: The video has good production values. It was interesting to see the laser engraving being done. I once got a cinema-style lens for zone focus use on a still camera, but I couldn't deal with the 3 pound (1.5kG) lens on a little 350g Fuji XE-2 camera.
Title: Re: Rehousing vintage lenses
Post by: ColinM on March 14, 2024, 15:39:22: Just to rephrase the question above...

Quote from: richardHaw on March 13, 2024, 00:58:46
It's unacceptable practice :o :o :o

Richard, is it unacceptable because of:
- risk to the lens, or
- risk to the human?
Title: Re: Rehousing vintage lenses
Post by: richardHaw on March 14, 2024, 18:18:19: It's very unprofessional, he won't be able to apply the grease evenly. He only just dab a few points on the helicoid. I was impressed until I saw what he did, something like a backyard mechanic would do in a third world nation :o :o :o
If he is not careful that same finger will end up in places where Grease should not be in. ::) if he picks his nose, his nostrils will be as smooth as voigtlander 8)
Title: Re: Rehousing vintage lenses
Post by: Erik Lund on March 15, 2024, 10:08:22: IMHO A dedicated stiff, very short haired brush of good quality is suitable to use. You don't want it to loose a hair in the threads so take care.
Thank you for sharing the link! A very high end rehousing compared to the hacks we usually do here on NG :o 8)
Title: Re: Rehousing vintage lenses
Post by: richardHaw on March 15, 2024, 23:54:48: 1 day, when I have the place and money I will buy myself a CNC machine and a lathe, I will be able to manufacture barrels myself. And yes, I will never use my finger for lubricating helicoids :o :o :o only for picking my nose ::)
Title: Re: Rehousing vintage lenses
Post by: Snoogly on March 16, 2024, 00:53:07: Here is some more lens-tech porn ;-)

https://youtu.be/kIa42sOWG0I?si=EW2wg5CgiyPOOt-_
Title: Re: Rehousing vintage lenses
Post by: richardHaw on March 16, 2024, 01:58:27: https://www.youtube.com/watch?v=2Vg5B3HLWyU

https://www.youtube.com/watch?v=TByWK5837pI

https://www.youtube.com/watch?v=8i3IK_i6pVE

tokina :o :o :o