So far total of 6 pieces committed out of 20 minimum order. Need a few more folks, PM me if you need these.ray_parkhurst wrote: ↑Thu Oct 01, 2020 7:15 pmSo far I have only received one inquiry about joining a group buy. I plan to buy a couple, and one other forum member wants to buy a couple. Anyone else interested? They are certainly expensive, but if you need them, the original equipment is always best.
Schneider locking screws
Moderators: rjlittlefield, ChrisR, Chris S., Pau
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
Re: Schneider locking screws
Just wondering, are these thumbscrews identical to the ones from the Xenoplan machine vision line of lenses? Anyone owning both types of lenses? I measure the Xenoplan ones to have a width of 2.4mm over the peaks of the screw thread and be 4mm in length, with the final mm close to the knurled head lacking threads.
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
I believe there is only one type offered by Schneider. My Xenoplans use the same type of screw as the Unifoc, Makro-Symmar, and the 85MV. Indeed it is a 4mm long (thread length) M2.4 screw. Earlier in this thread Macrero says M2 but I don't think that is correct.dickb wrote: ↑Sun Oct 04, 2020 11:22 amJust wondering, are these thumbscrews identical to the ones from the Xenoplan machine vision line of lenses? Anyone owning both types of lenses? I measure the Xenoplan ones to have a width of 2.4mm over the peaks of the screw thread and be 4mm in length, with the final mm close to the knurled head lacking threads.
Re: Schneider locking screws
I just measured couple of thumbscrews from M-Symmar 120 and Componon-S MI 4/80, and they are indeed M2.4. That explains why the M2 screws in quite loosely...ray_parkhurst wrote: ↑Mon Oct 05, 2020 2:54 amI believe there is only one type offered by Schneider. My Xenoplans use the same type of screw as the Unifoc, Makro-Symmar, and the 85MV. Indeed it is a 4mm long (thread length) M2.4 screw. Earlier in this thread Macrero says M2 but I don't think that is correct.
- Attachments
-
https://500px.com/macrero - Amateurs worry about equipment, Pros worry about money, Masters worry about Light
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
So far we have 5 folks who each want a pair of thumbscrews, so we're halfway to the minimum order. As others see this thread hopefully we'll get to the minimum and can place the order. I'll keep updating as we get more requests...Ray
Re: Schneider locking screws
M2,4 would be extremely exotic, M2,5 (0,45 pich) is a standard thread size. I think you can safely order M2,5 standard screws.
Something like this 10pcs for 5€
Re: Schneider locking screws
Yeah, M2.4 is indeed very unusual, they are most likely M2.5.lothman wrote: ↑Mon Oct 05, 2020 8:22 amM2,4 would be extremely exotic, M2,5 (0,45 pich) is a standard thread size. I think you can safely order M2,5 standard screws.
Something like this 10pcs for 5€
Those look like a pretty good option. I may buy one set and see if they fit (I think they will). Will report back.
https://500px.com/macrero - Amateurs worry about equipment, Pros worry about money, Masters worry about Light
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
For the folks in the EU or UK, @Macrero has graciously agreed to trans-ship in order to reduce shipping costs. So if you're in the EU or UK and need some of these, let me know and I'll add you to the list.
Re: Schneider locking screws
I just checked the measurements of the locking screws from a Unifoc-58, a MacroVaron, and a V-Mount 120mm Makro-Symmar. I measured both the MV and Makro-Symmar screws (on right of image) as 2.44mm in diameter, with an approximate threaded length of 4mm. However, the Unifoc screw (on left) measures 2.95mm in diameter and is about 5mm in length.ray_parkhurst wrote: ↑Mon Oct 05, 2020 2:54 amI believe there is only one type offered by Schneider. My Xenoplans use the same type of screw as the Unifoc, Makro-Symmar, and the 85MV. Indeed it is a 4mm long (thread length) M2.4 screw. Earlier in this thread Macrero says M2 but I don't think that is correct.dickb wrote: ↑Sun Oct 04, 2020 11:22 amJust wondering, are these thumbscrews identical to the ones from the Xenoplan machine vision line of lenses? Anyone owning both types of lenses? I measure the Xenoplan ones to have a width of 2.4mm over the peaks of the screw thread and be 4mm in length, with the final mm close to the knurled head lacking threads.
Last edited by dmillard on Sat Oct 10, 2020 11:36 am, edited 1 time in total.
Re: Schneider locking screws
Thanks, good to know there are at least two variations of these locking screws.dmillard wrote: ↑Sat Oct 10, 2020 11:20 amI just checked the measurements of the locking screws from a Unifoc, a MacroVaron, and a V-Mount 120mm Makro-Symmar. I measured both the MV and Makro-Symmar screws (pictured on right) as 2.44mm in diameter, with an approximate threaded length of 4mm. However, the Unifoc screw (pictured on left) measures 2.95mm in diameter and is about 5mm in length.ray_parkhurst wrote: ↑Mon Oct 05, 2020 2:54 amI believe there is only one type offered by Schneider. My Xenoplans use the same type of screw as the Unifoc, Makro-Symmar, and the 85MV. Indeed it is a 4mm long (thread length) M2.4 screw. Earlier in this thread Macrero says M2 but I don't think that is correct.dickb wrote: ↑Sun Oct 04, 2020 11:22 amJust wondering, are these thumbscrews identical to the ones from the Xenoplan machine vision line of lenses? Anyone owning both types of lenses? I measure the Xenoplan ones to have a width of 2.4mm over the peaks of the screw thread and be 4mm in length, with the final mm close to the knurled head lacking threads.
SKScrews2.jpg
Re: Schneider locking screws
You are welcome. Just to clarify, I measured a locking screw from a Unifoc-58, not the smaller Unifoc-12 for which Ray needed replacement screws. I was hoping to appropriate it, at least temporarily, for the MacroVaron, but that's not going to happen. On the other hand, that probably would have been an excellent way to lose this small screw somewhere during the transfer process.
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
Thanks dmillard for this info. Seems there is a larger (M3) size of thumbscrew for the larger helicoids.dmillard wrote: ↑Sat Oct 10, 2020 11:20 amI just checked the measurements of the locking screws from a Unifoc-58, a MacroVaron, and a V-Mount 120mm Makro-Symmar. I measured both the MV and Makro-Symmar screws (on right of image) as 2.44mm in diameter, with an approximate threaded length of 4mm. However, the Unifoc screw (on left) measures 2.95mm in diameter and is about 5mm in length.
Last edited by ray_parkhurst on Sat Oct 10, 2020 2:43 pm, edited 1 time in total.
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
Again, PM me if you need any of the smaller screws. I'm hoping to place an order next week.
Especially anyone from EU/UK please let me know soon since I'll need to include yours with the shipment to Macrero in order to lower the overall shipping cost.
Especially anyone from EU/UK please let me know soon since I'll need to include yours with the shipment to Macrero in order to lower the overall shipping cost.
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
So far only 3 folks have signed up (two each) for the thumbscrew group order, so not enough yet for the minimum. I'm still hoping for more folks so PM me if you are interested. I'm going to buy 2 so we need several more folks.
-
- Posts: 3412
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
Re: Schneider locking screws
I'm still hoping for more folks to join the Schneider thumbscrew order, but so far only 10 screws have been committed out of a minimum order of 20 pieces.
Please let me know by PM if you would like to join in the order. I will keep this offer open for a while longer since it's still possible we can get to the minimum.
Please let me know by PM if you would like to join in the order. I will keep this offer open for a while longer since it's still possible we can get to the minimum.