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Wild M3B with Motic 1500.3 photo-bridge
Posted: Tue Aug 22, 2023 6:14 pm
by sreynolds
I have a new-to-me nice example of a Wild M3B which I am fitting for photography using direct projection. This post
https://www.microbehunter.com/microscop ... php?t=7354 describes a method to do that using a Motic 1500.3 photo bridge. I now have one of those, but I need a different adapter to use the Leitz-style 38mm to C-mount connection. Can anyone point me in the right direction?
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output port on 1500.3 - it measures about 32mm, and is too short to fit a camera beside the eye tubes
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When it gets to be nighttime I will try to find the position of the intermediate image with the camera bare sensor positioned above the port.
Update - I can bring the intermediate image into focus on a mirrorless camera sensor with the camera flange about 3.625" above the top of the arm of the photobridge. I got the photobridge from Ted Pella, and it came with a 'C mount base', which is what I show in the pictures. I find a Motic part number SW01131D listed as an 'SLR adapter' which appears to accept an eyepiece - which I don't want - but it looks like it might get me to the right height for the 38mm ISO to C-mount adapter I want to use.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Tue Aug 22, 2023 11:10 pm
by Scarodactyl
Just to be clear, you want to direct project onto a c-mount camera?
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 12:22 am
by sreynolds
Scarodactyl wrote: ↑Tue Aug 22, 2023 11:10 pm
Just to be clear, you want to direct project onto a c-mount camera?
I am using a mirrorless camera without lens - Olympus Pen E-PL7 - with a C-mount to Olympus adapter connected to a lens-less D10NLC 38mm ISO to C-mount. So, no, not a c-mount camera per-se.
- D10NLC C-mount to 38mm port adapter.jpg (26.49 KiB) Viewed 4762 times
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 12:28 am
by Scarodactyl
The c mount seems like an unnecessary intermediate in that equation, and a potential bottleneck or source of flare if you get one with a slightly tighter or less well flocked interior. Probably easier to just adapt on cheap m42 spacers, an m42 helicoid and an m42 to m4/3 adapter.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 12:52 am
by sreynolds
Scarodactyl wrote: ↑Wed Aug 23, 2023 12:28 am
Probably easier to just adapt on cheap m42 spacers, an m42 helicoid and an m42 to m4/3 adapter.
I will go that route if it turns out there is no suitable adapter from Motic - the post referenced above suggests that such a Motic adapter does exist - just can't find it, yet.
- J Firesto setup for camera using 1500_3 Motic adapter.jpg (121.06 KiB) Viewed 4758 times
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 3:42 am
by MichaelG.
.
Apologies if I am mis-reading your post … but if you already have the 1x C-Mount adapter as shown, then [
as per the linked previous discussion] you should only need to attach a suitable C to m4/3 adapter.
https://www.ebay.co.uk/itm/256123692902 for example.
MichaelG.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 12:21 pm
by sreynolds
MichaelG. wrote: ↑Wed Aug 23, 2023 3:42 am
Apologies if I am mis-reading your post …
Michael - I do have the C to M4/3 adapter - what I need is the spacer tube between the photobridge and the proper camera position - picture below shows camera in approx. location to capture intermediate image, with the D10NLC attached to the camera.
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Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 12:49 pm
by MichaelG.
Thanks for the clarification
Must admit it looks rather different spacing to what I thought was used in the other discussion.
[ post #16]
MichaelG.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 1:45 pm
by sreynolds
MichaelG. wrote: ↑Wed Aug 23, 2023 12:49 pm
Must admit it looks rather different spacing
It would end up being similar to the tube that comes standard with the Wild phototube - this is my M7A with Wild tube, without camera.
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Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 2:17 pm
by jfiresto
It appears that Motic reworked the photo bridge but did not update all their brochures. I have an older adapter shown in the K-Series brochure that downloads from some of their websites. The pictured photo bridge accepts an IS0-38 to C-mount adapter very much like the Leitz 543345, only with a broader and slightly taller flange.I just needed to raise a 543345 (or D10NLC) a millimeter or two.
You appear to have an SP100299D, that as far as I can tell, needs a different and much taller adapter,
an SP100458. Does its geometry look right?
EDIT: A little photogrammetry on the linked product image suggests the adapter has a 19mm inner diameter, the same that I measure for a 543345. I would expect a bit of vignetting (of a full 4:3 image) compared to the D10NLC which I measure at 21.4mm.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Aug 23, 2023 3:01 pm
by jfiresto
Scarodactyl wrote: ↑Wed Aug 23, 2023 12:28 am
The c mount seems like an unnecessary intermediate in that equation, and a potential bottleneck or source of flare if you get one with a slightly tighter or less well flocked interior. Probably easier to just adapt on cheap m42 spacers, an m42 helicoid and an m42 to m4/3 adapter.
I like that suggestion, given the photo bridge's long flange focal distance.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Thu Aug 24, 2023 1:02 am
by sreynolds
jfiresto wrote: ↑Wed Aug 23, 2023 2:17 pm
It appears that Motic reworked the photo bridge but did not update all their brochures.
Thank you, John. Same part number 1500.3 - different part. Go figure. I will work up something with M42 spacers and post pictures of outcome. May take a while.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Thu Aug 24, 2023 1:05 am
by Scarodactyl
If you or someone close has a 3d printer this is an easy task.
This is a good m42 helicoid for the price.
https://a.co/d/dvVYVxw
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Thu Aug 24, 2023 4:15 am
by MichaelG.
sreynolds wrote: ↑Thu Aug 24, 2023 1:02 am
jfiresto wrote: ↑Wed Aug 23, 2023 2:17 pm
It appears that Motic reworked the photo bridge but did not update all their brochures.
Thank you, John. Same part number 1500.3 - different part. Go figure. …
.
They certainly managed to confuse me
… but I think [
just maybe] this might be what you needed in the first place:
https://moticeurope.com/en/1x-c-mount-c ... s-168.html
Now that you are-where-you-are though … a DIY approach seems reasonable.
MichaelG.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Thu Aug 24, 2023 4:59 pm
by sreynolds
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Sep 27, 2023 8:16 pm
by sreynolds
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Sep 27, 2023 8:19 pm
by sreynolds
[duplicate post deleted]
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Wed Sep 27, 2023 8:49 pm
by Scarodactyl
Glad it worked out so well for you!
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Thu Sep 28, 2023 6:47 am
by jfiresto
Good job. Out of curiosity, is there a reason to have the E-PL7's LCD screen set in selfie-mode?
Flipped the other way, the upper dials and buttons are unobstructed and before you. You may, however, have to adjust to reading the menus upside down. I customize the controls to minimize that and consider it as honoring the pioneers of photography, who for decades had to compose their subjects viewed upside down.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Fri Sep 29, 2023 12:13 am
by sreynolds
jfiresto wrote: ↑Thu Sep 28, 2023 6:47 am
is there a reason to have the E-PL7's LCD screen set in selfie-mode?
John - I had started out with the camera the other way, and I don't remember if the image was upside down, but I didn't like the menus upside-down, so that is why I switched.
Re: Wild M3B with Motic 1500.3 photo-bridge
Posted: Fri Sep 29, 2023 8:28 am
by jfiresto
Sorry, I seemed to have unwittingly laid a red herring and perhaps should minimize my posts until I am fully recovered.
All my photo-tubes produce an erect specimen image on the camera LCD – just the menus are upside down, which I can manage.
I have three MFT cameras that I should review as microscope cameras. Your reports are giving me more food for thought. Thank you.