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Okaya Highkor 40mm f1.8 lens
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PostPosted: Sat Jul 17, 2021 7:57 pm    Post subject: Reply with quote
woodrim wrote:
Blazer0ne: Congratulations on finding that wonderful lens. You're not going to get the funky bokeh that Toby gets without extensive enhancement through post processing. However, once you find the distances where the lens renders the best bokeh, you'll really enjoy it. I find mine to be very sharp in the center, and when the bokeh plays well, it all comes together very well.


Here ya go. SOOC except for some small gamma adjustment, since I meter for highlights

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PostPosted: Sun Jul 18, 2021 10:49 pm    Post subject: Reply with quote
Can we see some better pics of your mounting? Thanks.


PostPosted: Sun Jul 18, 2021 11:21 pm    Post subject: Reply with quote
Lightshow wrote:
Can we see some better pics of your mounting? Thanks.


One of the C to M42 adapters will screw right on. Then you need a thin M42 helicoid and a thin M42 to E-Mount (in our case) ring. The helicoid is 12-19mm.


PostPosted: Sun Jul 18, 2021 11:48 pm    Post subject: Reply with quote
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Last edited by Blazer0ne on Tue Feb 22, 2022 4:18 pm; edited 2 times in total


PostPosted: Mon Jul 19, 2021 12:29 am    Post subject: Reply with quote
Blazer0ne wrote:
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Are you asking about that long sleeve? I can't remember if I unscrewed to remove it or cut it off.


PostPosted: Mon Jul 19, 2021 3:47 pm    Post subject: Reply with quote
Blazer0ne wrote:

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Yup, that looks like the C-M42. Screws right on. Just need the M42 helicoid and adapter ring.


PostPosted: Mon Jul 19, 2021 4:00 pm    Post subject: Reply with quote
At 40mm, distances make a big difference. I'm always looking for those best combinations of distance to subject and distance to the background.





PostPosted: Wed Aug 23, 2023 12:11 am    Post subject: Reply with quote
Could anyone help me figure out how to remove this lens (40mm 1.9) from a Lord 5D camera? I’m not having an easy time figuring it out. Thank you for any help!


PostPosted: Wed Aug 23, 2023 1:11 am    Post subject: Reply with quote
Geordie McManus wrote:
Could anyone help me figure out how to remove this lens (40mm 1.9) from a Lord 5D camera? I’m not having an easy time figuring it out. Thank you for any help!


It is easily removed from inside the rear of the camera. You will see a ring holding it on that you need to unscrew using a spanner.


PostPosted: Wed Aug 23, 2023 4:11 am    Post subject: Reply with quote
woodrim wrote:
Geordie McManus wrote:
Could anyone help me figure out how to remove this lens (40mm 1.9) from a Lord 5D camera? I’m not having an easy time figuring it out. Thank you for any help!


It is easily removed from inside the rear of the camera. You will see a ring holding it on that you need to unscrew using a spanner.


Thank you very much for your reply. Could you possibly elaborate on that? I’ve never worked on a lens before and I definitely do not own a spanner. I suppose I will have to buy one? Also, this might be a really dumb question, but here it goes… there seems to be two sets of aperture blades. I can see one set opening and closing through the back of the lens when I turn the dial on the lens. There’s another set with larger blades that is closed and I can’t figure out how to open them. Thank you!


PostPosted: Wed Aug 23, 2023 4:38 am    Post subject: Reply with quote
Geordie McManus wrote:
woodrim wrote:
Geordie McManus wrote:
Could anyone help me figure out how to remove this lens (40mm 1.9) from a Lord 5D camera? I’m not having an easy time figuring it out. Thank you for any help!


It is easily removed from inside the rear of the camera. You will see a ring holding it on that you need to unscrew using a spanner.


Thank you very much for your reply. Could you possibly elaborate on that? I’ve never worked on a lens before and I definitely do not own a spanner. I suppose I will have to buy one? Also, this might be a really dumb question, but here it goes… there seems to be two sets of aperture blades. I can see one set opening and closing through the back of the lens when I turn the dial on the lens. There’s another set with larger blades that is closed and I can’t figure out how to open them. Thank you!


It has been a few years, but I will see what I can find to help you. The second set of blades you are seeing is likely a leaf-type shutter.


PostPosted: Wed Aug 23, 2023 7:59 am    Post subject: Reply with quote
Yes, it is a leaf shutter. You can disassemble the lens and remove the blades, or if you are bold you can try to pull the blades out with needle nose pliers, but they tend to break and you have to be careful not to damage the aperture blades.


PostPosted: Wed Aug 23, 2023 5:06 pm    Post subject: Reply with quote
kymarto wrote:
Yes, it is a leaf shutter. You can disassemble the lens and remove the blades, or if you are bold you can try to pull the blades out with needle nose pliers, but they tend to break and you have to be careful not to damage the aperture blades.


I did not remove the shutter blades, just leave the shutter open.

Here's a picture of the rear. Note the two notches in the retaining ring. That is where you would apply the spanner and turn counterclockwise to loosen. However, if you do not have a spanner (I may be irresponsible to suggest this), you can make it loose by careful use of a small, slotted-head screwdriver. I have placed a red line to emulate the placement and angle of the screwdriver. I have done this successfully many times. The angle is important to avoid damage to the glass in the case it slips. Place the point of the screwdrive as shown in a slot, then tap the screwdriver lightly with something to break the ring loose, then unscrew the remainder of the way with your fingers. The lens will come right off. AFter that, go back in this thread and read how to adapt the lens. I shoot Sony mirrorless, so applied a c-mount to M42 adapter, then a helicoid, then a m42 to desired mount.
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PostPosted: Wed Aug 23, 2023 5:18 pm    Post subject: Reply with quote
Dumb question is the lens itself a CMount or did you glue it to a C-Mount adapter? thanks for the support.

Mark


PostPosted: Wed Aug 23, 2023 5:30 pm    Post subject: Reply with quote
Gatorengineer64 wrote:
Dumb question is the lens itself a CMount or did you glue it to a C-Mount adapter? thanks for the support.

Mark


The lens thread is the same as C-mount thread. I posted a picture a few posts prior that shows the C-M42 adapter screwed on.


PostPosted: Mon Aug 28, 2023 10:21 pm    Post subject: Reply with quote
Have you pulled apart the Lord 5D with the 40mm 1.9? If so is it difficult? I had one that looked fantastic but the shutter was stuck. I bought it to pull apart for the lens but couldn't bring myself to ruin a rather seldom seen camera. I bought another "as is". It turns out the lever arm for the focus had come off, leaving a ring with 2 holes where the lever arm should be. The focus throw seemed stuck but it was impossible to get purchase. I trimmed some double stick tape and wrapped it around and it works, just a bit stiff. Shutter works and times seem correct. I want to pull the good focus ring from the bad camera for one complete functional camera and adapt the other for mirrorless.


PostPosted: Tue Aug 29, 2023 4:37 pm    Post subject: Reply with quote
jamaeolus wrote:
Have you pulled apart the Lord 5D with the 40mm 1.9? If so is it difficult? I had one that looked fantastic but the shutter was stuck. I bought it to pull apart for the lens but couldn't bring myself to ruin a rather seldom seen camera. I bought another "as is". It turns out the lever arm for the focus had come off, leaving a ring with 2 holes where the lever arm should be. The focus throw seemed stuck but it was impossible to get purchase. I trimmed some double stick tape and wrapped it around and it works, just a bit stiff. Shutter works and times seem correct. I want to pull the good focus ring from the bad camera for one complete functional camera and adapt the other for mirrorless.


I'm working from memory, so for what that's worth, the shutter is part of the lens, Removing the lens is non-destructive to the camera. I leave the shutter and aperture wide open and do the focusing with the helicoid. If the non-working shutter is fixed in a partially closed state, that's a problem that you probably need to open the lens to resolve. Or, maybe you can pull the blades out as kymarto had suggested. I have removed both f/1.8 and f/1.9 lenses.
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PostPosted: Thu Aug 31, 2023 8:35 pm    Post subject: Reply with quote
Okay. Bit the bullet and took it apart! My spanner would not fit down inside the film frame housing so I used a pair of fine tip scissors. Worked well, lens came straight off except for a short red wire. I figure for flash? I snipped it. The shutter was closed so I used the needle nose plier technique. From the front works better. The back lens has no spanner lugs but came out easily with a rubber wrench. I used a 25x 0.5-m42 ring. It bumped against the aperture ring which I hope to use. I thought of superglue to fix with enough of a gap but decided to fashion a bushing from a thin strip of copper instead.

Here the final position with NEX close m42 and longest helicoid I could achieve infinity. Which is 12-19.



And of course when I finish it is raining! First rain we have had since beginning week of June. So, desperately needed, as we are in the midst of one of the worst wildfire seasons ever. There are 22 or 23 burning in the state right now. I'll stop whining and wait for better weather for a serious trial.


PostPosted: Thu Aug 31, 2023 9:02 pm    Post subject: Reply with quote
Have fun with it. Great lens.


PostPosted: Fri Sep 01, 2023 10:35 am    Post subject: Reply with quote
1" - 25,4mm C-mount thread has a pitch 1/32" if I recall it correctly. This kind of shutter rear thread is 25mm 0,5mm pitch. The difference may be enough to create issues.


PostPosted: Fri Sep 01, 2023 11:28 am    Post subject: Reply with quote
Ernst Dinkla wrote:
1" - 25,4mm C-mount thread has a pitch 1/32" if I recall it correctly. This kind of shutter rear thread is 25mm 0,5mm pitch. The difference may be enough to create issues.

There is exact adapter available. Click here to see on Ebay


PostPosted: Fri Sep 01, 2023 4:36 pm    Post subject: Reply with quote
Yes. That is the adapter I used. I already had it for some other lens I had played with.


PostPosted: Fri Sep 01, 2023 10:13 pm    Post subject: Reply with quote
What a lens!

May I join in?


High: https://live.staticflickr.com/65535/53157095312_4837ed7c5d_6k.jpg


PostPosted: Fri Sep 01, 2023 11:16 pm    Post subject: Reply with quote
I managed to swap the defective focus ring for the good one from the lens donor camera. So I ended up with a fully functional novel looking Okaya Lord 5Dnand a m42 adapted lens for digital from 2 defective cameras. I had to cut and solder the flash wire but I have little doubt it works.


PostPosted: Sat Sep 02, 2023 1:07 am    Post subject: Reply with quote
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