Search found 754 matches

by imkap
Mon Jun 12, 2023 11:43 pm
Forum: Microscopes and optics
Topic: Need help with a stuck part on a Zeiss PM3 tube head
Replies: 26
Views: 10132

Re: Need help with a stuck part on a Zeiss PM3 tube head

There is a set screw in a small hole just near the spring at 3 o clock. I think it holds the thing in place, so unscrew, soften with ethanol and try to remove. Just careful not to damage the set screw
by imkap
Mon Jun 12, 2023 11:02 pm
Forum: Microscopes and optics
Topic: Need help with a stuck part on a Zeiss PM3 tube head
Replies: 26
Views: 10132

Re: Need help with a stuck part on a Zeiss PM3 tube head

I think you should be able to remove the whole spring screw assembly by unscrewing the set screw. Just carefully and with a right screwdriver as Zeiss set screws are easy to break. Then soak in gasoline, ethanol or whatever, disassemble, regrease and assemble... You did unscrew the cap completely? I...
by imkap
Tue Jun 06, 2023 10:51 pm
Forum: Camera systems and imaging
Topic: Full Frame Camera Prices
Replies: 8
Views: 2864

Re: Full Frame Camera Prices

We have a lot better image since having a FF camera (12MP), 35mm film was what the manufacturer had in mind when building the microscope.
FF isn't about more pixels but about sensor size.
by imkap
Sat May 20, 2023 9:10 pm
Forum: Pictures and Videos
Topic: Bittium reticulatum
Replies: 0
Views: 1330

Bittium reticulatum

Here is a video of sea snails Bittium reticulatum, size iz approx 2mm. First and the last part of the video was recorded on our new trinocular SZ40 with NFK 2.5, rest on BH-2. I tested 4K and it does look better than 1080p despite having less FPS :roll: I'll record everything like this in the future...
by imkap
Sat May 20, 2023 9:03 pm
Forum: My microscope
Topic: New Carl Zeiss Standard RA38.
Replies: 19
Views: 9186

Re: New Carl Zeiss Standard RA38.

Do you know of some disassembly instructions to try to get to the bulb ? What would you recommend to do for the illumination ? I think you should be able to remove it by turning or something, never had the original bulb socket :| There is a screw beneath (in a base) you can remove the whole tube by...
by imkap
Sat May 20, 2023 7:23 pm
Forum: My microscope
Topic: New Carl Zeiss Standard RA38.
Replies: 19
Views: 9186

Re: New Carl Zeiss Standard RA38.

I suggest you find a way to light up that bulb, I think it is 6V and 15W, check somewhere. Lab power supply might be a good option, as it can be used with this bulb and whatever you want use later, probably available locally this Monday if you're in a hurry. :D Maybe find a small flashlight and put...
by imkap
Sat May 20, 2023 7:17 am
Forum: My microscope
Topic: New Carl Zeiss Standard RA38.
Replies: 19
Views: 9186

Re: New Carl Zeiss Standard RA38.

Thanks !! Can you recommend some cleaning/ servicing supplies till it gets here ? I am particularly trying to find some suitable lubricant or oil for the different moving parts. Understood on the condenser front. Actually I have been into amateur Microscopy for some time now but its the first time ...
by imkap
Sat May 20, 2023 4:23 am
Forum: My microscope
Topic: New Carl Zeiss Standard RA38.
Replies: 19
Views: 9186

Re: New Carl Zeiss Standard RA38.

Hi, looks great, congratulations. It seems like a good deal. Maybe needs some cleaning, but that's a fun part too, at least for me :) Your condenser might even have darkfield already, look for D when turning the turret. It looks like it may be 1.4 apl. which is great, these sell for more than 100€ b...
by imkap
Thu May 18, 2023 7:50 am
Forum: Pictures and Videos
Topic: An intriguing freshwater specimen.
Replies: 11
Views: 2303

Re: An intriguing freshwater specimen.

A Batman larva, nice find
by imkap
Wed May 10, 2023 1:37 pm
Forum: Microscopes and optics
Topic: Reichert Polyvar
Replies: 122
Views: 1837901

Re: Reichert Polyvar

Probably, I use 100% ethanol. Just don't force anything now, first disassemble then clean... Wipe each leaf carefully to remove residue. I use a wooden toothpick to help with assembly. It is hard to do with anything metal (magnetic). Not hard, you just need some time and calmness :mrgreen: Ok, that...
by imkap
Wed May 10, 2023 10:16 am
Forum: Microscopes and optics
Topic: Reichert Polyvar
Replies: 122
Views: 1837901

Re: Reichert Polyvar

Probably, I use 100% ethanol. Just don't force anything now, first disassemble then clean... Wipe each leaf carefully to remove residue. I use a wooden toothpick to help with assembly.
It is hard to do with anything metal (magnetic).

Not hard, you just need some time and calmness :mrgreen:
by imkap
Wed May 10, 2023 8:55 am
Forum: Microscopes and optics
Topic: Cheap WF10X/23 eyepieces for 30mm eye tubes
Replies: 13
Views: 4265

Re: Cheap WF10X/23 eyepieces for 30mm eye tubes

I bought the 10x/23 and they do have a bit wider field than GSWH10...
by imkap
Tue May 09, 2023 9:40 pm
Forum: Beginner's corner
Topic: Professional photography kit cleaners- will they be good for old microscopes?
Replies: 2
Views: 1039

Re: Professional photography kit cleaners- will they be good for old microscopes?

I'd say microscopes are simpler to service than cameras, as cameras are smaller. The only real fiddly part would be the microscope head. A serious mechanic stands behind their work, so whether they' will repair something they don't usually do, I think you must ask them. They might waste too much tim...
by imkap
Mon May 08, 2023 7:13 pm
Forum: Pictures and Videos
Topic: MEMS Microphone
Replies: 4
Views: 911

Re: MEMS Microphone

Nice :D
by imkap
Mon May 08, 2023 3:41 pm
Forum: Beginner's corner
Topic: - Scope Over Time -
Replies: 2
Views: 1496

Re: - Scope Over Time -

It is easier to find a complete working microscope at a good price than all the parts one by one, they add up pretty quickly especially if buying online. ... Just be patient. Zeiss, Nikon, Olympus or Leitz (Leica), American optical, Reichert are the brands that come in mind first to me... Availabili...
by imkap
Mon May 08, 2023 11:40 am
Forum: Illumination Techniques
Topic: Comparison of resolutions of dry 40X Zeiss 160mm objectives with Pleurosira
Replies: 9
Views: 1846

Re: Comparison of resolutions of dry 40X Zeiss 160mm objectives with Pleurosira

Great, how do you achieve oblique? Thanks. For brightfield, I set the condenser to the "J" position, set Kohler illumination, then close the condenser diaphragm for proper contrast. As usual. To achieve oblique, I then rotate the turret very slightly anticlockwise (could have done clockwise, it doe...
by imkap
Mon May 08, 2023 6:06 am
Forum: Digital processing
Topic: Photoshopping....too much?
Replies: 13
Views: 4336

Re: Photoshopping....too much?

I guess I'm asking where, in your mind, does "photo-journalism" end and "art" begin and whether or not we should note the difference in our images. Well if you added an organ to a rotifer, probably you should not claim it is a mutation... Post processing is needed because camera can get things wron...
by imkap
Sun May 07, 2023 6:33 pm
Forum: Microscopes and optics
Topic: Zeiss GFL compatible objectives?
Replies: 17
Views: 2547

Re: Zeiss GFL compatible objectives?

Hey everyone, I am starting to plan the DIY lighting portion of the microscope. My plan currently is to use the bulb housing as a mount. I have removed the old wiring and would like to fasten this small dimmable LED (https://www.amazon.com/gp/product/B00KWGM5PK/ref=ox_sc_act_title_1?smid=A20NP250MG...
by imkap
Sun May 07, 2023 2:48 pm
Forum: Digital processing
Topic: Photoshopping....too much?
Replies: 13
Views: 4336

Re: Photoshopping....too much?

Editing is a part of the process. It is up to the author's taste how much and in which direction. You could leave it to the camera processor if you like the results.

I like the image without the shadow more

Digital photographers use software and analog (film) use a darkroom.
by imkap
Sun May 07, 2023 6:36 am
Forum: My microscope
Topic: Zeiss stand- Help Identify
Replies: 14
Views: 3915

Re: Zeiss stand- Help Identify

Pete is right it's a standard GFL, same as mine just with an added accessory between the head and the arm. Probably an Optovar. GFL moves the arm up and down for course focus, unlike WL which moves the stage for both. Therefore it is able to take more (heavy) accessories. WL has an exchangable objec...
by imkap
Fri May 05, 2023 11:15 pm
Forum: Microscopes and optics
Topic: Aftermarket trinocular head and 20x eyepiece for a Kyowa SDZ?
Replies: 4
Views: 763

Re: Aftermarket trinocular head and 20x eyepiece for a Kyowa SDZ?

I almost bought the same microscope a while ago. Seller started to complicate so I opted out. Looks great. Nice and compact. I'm not sure you'll be able to convert to trinocular... You'll have to use one of the tubes which can yield good results. My Olympus worked good without an eyepiece, with a t2...
by imkap
Thu May 04, 2023 11:47 pm
Forum: Pictures and Videos
Topic: Assorted Peritrichs and Suctorians from marine sample
Replies: 5
Views: 1380

Re: Assorted Peritrichs and Suctorians from marine sample

Nice, I love the determined diatom on 2:34...
by imkap
Thu May 04, 2023 11:45 pm
Forum: Introduce yourself
Topic: New member and new to microscopy
Replies: 2
Views: 1044

Re: New member and new to microscopy

Hi and welcome. Congratulations on your purchase, microscopes are fun to take apart... :D Depth of field is shallow on large magnification, it is how it is... :D You can put a cover glass to limit the vertical movement of the specimen... Turning/moving different parts in the optical path tells you w...
by imkap
Thu May 04, 2023 11:28 pm
Forum: Microscopes and optics
Topic: Zeiss GFL compatible objectives?
Replies: 17
Views: 2547

Re: Zeiss GFL compatible objectives?

My next project is to repair or upgrade the lighting system which is currently inoperable. I will either need to find a bulb and transformer or convert to an LED. I saw in another thread that "retrodiode" provides a system for this. Does anyone have recommendations? If you have nothing currently yo...
by imkap
Thu May 04, 2023 7:33 pm
Forum: Microscopes and optics
Topic: Zeiss GFL compatible objectives?
Replies: 17
Views: 2547

Re: Zeiss GFL compatible objectives?

Delamination sometimes degrades the image quality noticeably, sometimes not. Therefore delaminated objectives don't need to be rejected before trying out, especially if found cheap. For photography, eyepieces and objectives need to be matched. For visual observation, I'm not bothered by a bit of CA ...
by imkap
Tue May 02, 2023 8:54 pm
Forum: Pictures and Videos
Topic: Planktonic gastropods in DF
Replies: 23
Views: 5665

Re: Planktonic gastropods in DF

Bit late but thanks for sharing. Something to be proud of. Do let us know if you make another. Thanks, we'll make more eventually but it isn't easy to find different actors :) I have a spare Zeiss (GFL 60s) stage I'll adopt on the SZ40, now that I got a trinocular with a transiluminator below. So h...
by imkap
Sun Apr 30, 2023 11:18 pm
Forum: For forum members who want to buy and sell equipment
Topic: FS: Olympus SZ40 stereo in EU
Replies: 2
Views: 1156

Re: FS: Olympus SZ40 stereo in EU

I'll put this on Catawiki auction in a few days, so if anyone is interested please say so before, or bid on auction :D ...

PS: I made it parfocal