Author Topic: Trumpf ZnSe lenses - Large diameter long focal length  (Read 2334 times)

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Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #25 on: May 02, 2020, 09:35:33 pm »
RBSonic,

I will see what I can do but not sure how good the results will be just looking through the lens with the E60+. No time to make a decent Keplerian telescope at the moment.

Fraser
 

Offline winternight69

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #26 on: May 02, 2020, 11:19:56 pm »
Thanks a lot to everyone! As I am a guest here if someone need to contact me about lenses use my Ebay account.  I try to do as much as can. If someone needs to ship it outside the Europe will not be a problem, but postage fees could be different. I'll try to find the best options for you. I have two type of lenses, they are taking out of service from machine and placed in original packaging straight away. Most of them in quiet good conditions. I am not keeping burned or damaged lenses, may have some small imperfection and maybe some needs proper clean, which is set up a special procedure to avoid for scratching them. I am not providing a cleaning . Any questions I do answer from my Ebay account.
Best regards
 
The following users thanked this post: Fraser, RBsonic, conmega, NiallxD

Online _Wim_

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #27 on: May 03, 2020, 05:46:53 am »
winternight69, as a transition from Steampunk art to our electronics hobby, a nixie tube clock project looks ideal for you:  ;)

https://www.eevblog.com/2016/11/26/eevblog-948-nixie-tube-display-project-part-1/

 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #28 on: May 03, 2020, 12:13:06 pm »
Winternight69,

I must say, I love the Steampunk fish  :-+

Close study reveals the complexity of the build. Most impressive. I am thinking the spine of the Fisk is made from laser cutter copper output nozzles. It is great to see industrial ‘scrap’ turned into something beautiful  :-+

I can imagine that steampunk fish exploring the depths of an ocean on a far off world where life is an organic/machine hybrid rather than purely organic  :)

Wonderful art, simply wonderful. I had not spent much time looking at Steampunk art.... I shall have to study it some more. I definitely prefer Steampunk ‘animals’, likely because I love organic animals.

Fraser
 

Offline NiallxD

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #29 on: May 03, 2020, 08:22:06 pm »
Fraser,

Cheers for highlighting these for me, I bought some a while back and they were far too small for my use so sent them back to Amazon. Bought the 38 & 50mm lenses from Winternight69,

Looking forward to doing some tinkering. I've got some kind of thermal telescope in mind, so if anything pops to mind let me know. You are significantly more experienced in all this than I am,

Cheers again!

Niall
 

Offline ArsenioDev

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #30 on: May 05, 2020, 10:05:07 pm »
Darn, JUST missed these lenses available.  :'( 
Was hoping to snag some to do telescope work but alas
 

Offline eliocor

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #31 on: May 05, 2020, 11:54:23 pm »
@ArsenioDev:
it seems to me they are yet available: https://www.ebay.co.uk/sch/winternight69/m.html
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #32 on: May 06, 2020, 03:15:50 am »
@ArsenioDev,

If you contact the seller via ebay and let him know how many of each type you want, he will create a special auction for you with the appropriate postage shown.

Fraser
 

Offline ArsenioDev

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #33 on: May 07, 2020, 04:38:51 pm »
OH, hrm. When I checked his page it showed no items listed. Will run some numbers later today on which ones I need. Thanks for the heads up
 

Offline Miek

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #34 on: May 07, 2020, 08:14:01 pm »
Thanks for sharing this Fraser. I now have a couple of each size on the way :D
 

Offline NiallxD

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #35 on: May 07, 2020, 09:10:36 pm »
@Winternight95

Thanks for the lenses! Time to have some fun!

Niall!
 

Offline Vipitis

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #36 on: May 12, 2020, 11:00:20 am »
I got my first lens today, it looks pristine and transmission looks fairly well. Next order is placed already, got the 2 pack. Will eventually put all my lens elements together and see what I can make, maybe replace the broken element - getting my 3D printer operational again would be a good start.

Thanks for the listing and pointer!
 

Online _Wim_

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #37 on: May 18, 2020, 06:07:40 pm »
Done exactly the same. Thanks for the great tip Fraser!  :-+

My set of lenses arrived also today. They look fantastic. Thanks winternight69 & Fraser for making this possible!
 

Offline Vipitis

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #38 on: May 19, 2020, 12:29:17 pm »
my set of 4 lenses arrived today, definitely not as pristine of a condition as the first one I got. But as I ordered later I must have been a little ways down the chain of quality picks. Still very much good enough for imaging and experiments. I set them aside for now as I got a other things to do and can't put much time towards working on my camera systems. Will update when I made use of the elements.
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #39 on: May 19, 2020, 04:27:45 pm »
All we need now is an affordable source of Plano Concave, bi-concave or Negative meniscus lenses and we have the basics of a supplemental mount Galilean telescope  :-+

Fraser
« Last Edit: May 19, 2020, 04:42:14 pm by Fraser »
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #40 on: May 19, 2020, 04:31:35 pm »
Vipitis,

What issues do your lenses have ? It is not unusual to have a tiny black dot laser burn but none of my lenses have anything really bad wrong with them. Small blemishes on an Objective lens are not in focus and will hopefully not be visible at the resolutions that we work at.

Fraser
 

Offline Miek

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #41 on: May 22, 2020, 06:25:50 pm »
They also work rather well as close-up lenses  ;D
 
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Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #42 on: May 22, 2020, 06:45:39 pm »
Mike,

Interesting  :-+

I see you have a 3D print design for a lens mount on the PM series  :-+ :-+ Would you be willing to share that mount design please ? I need one and have just not had the time to concentrate on it.

Fraser
 

Offline Miek

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #43 on: May 22, 2020, 07:13:22 pm »
Sure! I've attached some sketches of the critical dimensions, and a zip of the STLs & SolveSpace project files.
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #44 on: May 22, 2020, 10:17:06 pm »
Thanks Miek  :-+

Great work  :-+ :-+  That design will help me with developing other lens adapters for my PM series cameras.

Thank you for sharing your hard work.

Fraser
« Last Edit: May 22, 2020, 10:23:38 pm by Fraser »
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #45 on: May 23, 2020, 11:09:32 pm »
Miek,

I just completed the printing of the two PM series lens mounts in ABS  :)

They are excellent  :-+ Thanks again for sharing.

Picture attached.
Fraser
« Last Edit: May 23, 2020, 11:17:14 pm by Fraser »
 

Offline RBsonic

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #46 on: May 24, 2020, 07:09:43 pm »

Fraser

Can you post some thermal photos with lens and without?
« Last Edit: May 24, 2020, 07:15:37 pm by RBsonic »
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #47 on: May 24, 2020, 07:51:58 pm »
No PM series cameras to hand at the moment. Regret I cannot help but Miek may be able to help. He has already provided some examples in this thread  :)

Fraser
« Last Edit: May 24, 2020, 07:59:11 pm by Fraser »
 

Offline Fraser

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #48 on: May 24, 2020, 07:57:02 pm »
RBSonic,

Please also remember that I do not recommend these lenses for PCB work as 7.5 Inches is a little too far away for detailed SMD work. 100mm/4 inches is better as a general PCB close-up lenses. Miek's pictures tell you something about the lenses though. No nasty image distortion visible.

Fraser
 

Offline Miek

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Re: Trumpf ZnSe lenses - Large diameter long focal length
« Reply #49 on: May 25, 2020, 12:29:37 pm »
I just completed the printing of the two PM series lens mounts in ABS  :)

Nice!  :-+

No PM series cameras to hand at the moment. Regret I cannot help but Miek may be able to help. He has already provided some examples in this thread  :)

Yep, in pictures I posted above 'far' is no supplementary lens, 'close' is with the 50mm diameter lens, and 'closer' is the 1.5" diameter lens.
 


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