Wanted: Zeiss KPL 2.5x Photo Eyepiece
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Wanted: Zeiss KPL 2.5x Photo Eyepiece
I know these are supposed to be rare, but I’m looking for a Zeiss KPL 2.5x photo eyepiece. I really want this particular magnification because of the rest of my camera setup. Unfortunately, I missed one that went for cheap on eBay a couple of months ago. Does anyone have one they’re willing to sell? Thanks.
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hi,
you might have a look at Rolf's new camera adaptation method: https://microscopyofnature.com/micropho ... -eyepieces
He uses combinations of standard eyepiece components to form a projective. I have tested his method and it works very well.
Bob
you might have a look at Rolf's new camera adaptation method: https://microscopyofnature.com/micropho ... -eyepieces
He uses combinations of standard eyepiece components to form a projective. I have tested his method and it works very well.
Bob
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
.
What an excellent page that is, Bob !!
Thanks for the link
MichaelG.
What an excellent page that is, Bob !!
Thanks for the link
MichaelG.
Too many 'projects'
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
MicroBob wrote: ↑Sat Apr 10, 2021 7:21 amHi,
you might have a look at Rolf's new camera adaptation method: https://microscopyofnature.com/micropho ... -eyepieces
He uses combinations of standard eyepiece components to form a projective. I have tested his method and it works very well.
Bob
Thanks for the link + Good to know!
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hit together,
at the moment my setup is:
eye lens KPL10x barrel KPL8x base lens KPL8x eyepiece lifted 7mm, optimal use of image circle, sacrifying a little colour correction towards the border.
3 images:
-some Pleurosigma with Planapo 25, oblique, left side is edge of complete image, right side is middle
-chinese object micrometer with cover slip, Planapo 25 from middle to right border of image, slight separation of colours is visible
-this image analysed with Fitswork, showing the slight separation of blue and red towards the border
Phomi 1 with tube factor 1,25.
This is already fine for me but I will do some more experiments, e.g. with a KPL 10x base lens I just got from Rolf.
With a M4/3 sensor the adaptation will probably just fill the image circle without lifting the hybrid eyepiece, giveing perfect image quality.
One caveat: There is a slight pincushion distortion, so if this were important for you a correction would be necessary.
Bob
at the moment my setup is:
eye lens KPL10x barrel KPL8x base lens KPL8x eyepiece lifted 7mm, optimal use of image circle, sacrifying a little colour correction towards the border.
3 images:
-some Pleurosigma with Planapo 25, oblique, left side is edge of complete image, right side is middle
-chinese object micrometer with cover slip, Planapo 25 from middle to right border of image, slight separation of colours is visible
-this image analysed with Fitswork, showing the slight separation of blue and red towards the border
Phomi 1 with tube factor 1,25.
This is already fine for me but I will do some more experiments, e.g. with a KPL 10x base lens I just got from Rolf.
With a M4/3 sensor the adaptation will probably just fill the image circle without lifting the hybrid eyepiece, giveing perfect image quality.
One caveat: There is a slight pincushion distortion, so if this were important for you a correction would be necessary.
Bob
- Attachments
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- Fitswork Mite bis rechts 1024.jpg (102.58 KiB) Viewed 5288 times
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- Diatomeen Planapo25 schiefe Beleuchtung 6mm Anhebung DSC03737 1024 left half image.jpg (138.47 KiB) Viewed 5288 times
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- Ausschnitt Mitte bis rechts DSC03722 1024.jpg (74.93 KiB) Viewed 5288 times
Last edited by MicroBob on Sun Apr 11, 2021 9:25 am, edited 1 time in total.
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- Posts: 109
- Joined: Wed Dec 30, 2020 1:46 am
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Thank you, Microbob, for that great link. I hadn’t seen that method and definitely wouldn’t have figured that out on my own! I will try it if I can’t find the KPL 2.5 photo eyepiece. Ideally I’d still like to find that, if anyone who ever reads this has one to sell, because it would enable me to use the same setup on my Zeiss Standard GFL that I currently use on my Olympus BHS — I would just need to swap out the Olympus NFK 2.5 for a Zeiss KPL 2.5 and I’d be done. Unless the adapter height needs to be different, I’m not sure:
If I can’t find the KPL 2.5, I will need to get the adapters to use Rolf’s method. Microbob or Hobbyst or anyone else using this method with an older Zeiss, can you post pics of your adapter setup? Where did you find your adapter(s)? It’s hard to find ones that look right on eBay, especially with adjustability for length.
Also Microbob, did you mean to attach 3 photos to your last post? I don’t see them, but I’d like to!
If I can’t find the KPL 2.5, I will need to get the adapters to use Rolf’s method. Microbob or Hobbyst or anyone else using this method with an older Zeiss, can you post pics of your adapter setup? Where did you find your adapter(s)? It’s hard to find ones that look right on eBay, especially with adjustability for length.
Also Microbob, did you mean to attach 3 photos to your last post? I don’t see them, but I’d like to!
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hello sciencenatters I have a range of KPL eyepieces, and will see if I have a spare 2.5x
Zeiss Jena NF, Zeiss Standard 18 and WL
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Sorry, I have added them now.ScienceMatters wrote: ↑Sat Apr 10, 2021 10:07 pmAlso Microbob, did you mean to attach 3 photos to your last post? I don’t see them, but I’d like to!
I have an Olympus (FK?) projective and tested it, it is calulated for a longer camera length with a towering sepup high above the microscope's trino head. Zeiss West/Oberkochen normally had an adaptation using an 63mm achromat in the light path to the camera so it is unlikely that you will find a 1:1 usable Zeiss-Olympus combination with factory projectives. My suggestion would be to make individual adaptations and only swith the camera around.
In the 70s-90s most camera brands and accesory suppliers had microscope mounts that can be used for this. Have a look at these:
https://www.ebay.de/itm/MIKROSKOPADAPTE ... 4045093092
https://www.ebay.de/itm/Mikroskop-Adapt ... 5118880102
https://www.ebay.de/itm/Ihagee-Dresden- ... 4410950211
The Ihagee one is especially nice.
I have attatched a photo with my setup, using a telescopic Zeiss tube and a Zeiss ring dovetail to Sony e-mount adapter I assembled myself.
Bob
- Attachments
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- Phomi 1 with Sony A6000 1024.jpg (150.69 KiB) Viewed 5287 times
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
@ScienceMatters ... You might find this thread worth a look:
https://www.microbehunter.com/microscop ... f=5&t=7871
MichaelG.
Too many 'projects'
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Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
You guys are so helpful, thank you. I love that I can post a simple “wanted” thread on here and end up with so much useful technical advice.
IanW, great! Do let me know if you happen to have the 2.5, or any KPL or even C photo eyepiece under 8x. Thanks.
Bob, those images are good. You seem to be getting nice results with your setup! The rest of your info is also helpful. Ihagee! I had seen those adapters and thought they looked perfect but didn’t know what keyword to search for. I ordered one up, with 2 extenders, and also an E-mount adapter for my camera. I will start with that and experiment with whatever photo eyepieces I can get.
MichaelG, that thread was interesting and now I have a third option as well, thanks. I had seen those Zeiss 63mm tubes but didn’t realize they function as a lens. I will try to avoid the extra glass for now, but it might end up being a good option if I can’t find the right photo eyepiece.
Thanks all!
IanW, great! Do let me know if you happen to have the 2.5, or any KPL or even C photo eyepiece under 8x. Thanks.
Bob, those images are good. You seem to be getting nice results with your setup! The rest of your info is also helpful. Ihagee! I had seen those adapters and thought they looked perfect but didn’t know what keyword to search for. I ordered one up, with 2 extenders, and also an E-mount adapter for my camera. I will start with that and experiment with whatever photo eyepieces I can get.
MichaelG, that thread was interesting and now I have a third option as well, thanks. I had seen those Zeiss 63mm tubes but didn’t realize they function as a lens. I will try to avoid the extra glass for now, but it might end up being a good option if I can’t find the right photo eyepiece.
Thanks all!
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hello sciencematters, after checking I have just the one copy of 2x that I need. I do have 2 copies of the next best thing, kpl 3,2:1. Let me know if this might be of interest. I can send you photos to view of both eyepieces. Cheers!
Zeiss Jena NF, Zeiss Standard 18 and WL
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- Posts: 109
- Joined: Wed Dec 30, 2020 1:46 am
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
IanW, yes, I’d definitely be interested in the 3.2x. I will message you. Thank you!
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hello, you are correct. Mine is Zeiss Jena MF K Projektiv.
Zeiss Jena NF, Zeiss Standard 18 and WL
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Zeiss Jena and Zeiss West are close in their colour correction. There may be slight differences in the planar correction. Depending on the cameras chip size it will only cover the inner part of the image of the projective. 2.5 usually fits for full frame, 1,67 for APS-C, bigger numbers for medium or large format.
Re: Wanted: Zeiss KPL 2.5x Photo Eyepiece
Hello Microbob, yes I find the MF K projektivs to work well with Zeiss West objectives, and as you say, coverage of the 2.5X is very reasonable, the 3,2:1 the next best thing.
Zeiss Jena NF, Zeiss Standard 18 and WL