Search found 754 matches
- 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
- 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...
- 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.
FF isn't about more pixels but about sensor size.
- 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...
- 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...
- 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...
- 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 ...
- 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...
- 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
- Wed May 10, 2023 9:40 pm
- Forum: Microscopes and optics
- Topic: What's the Microscopy Budget at BASF?
- Replies: 6
- Views: 1161
- 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...
- 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
It is hard to do with anything metal (magnetic).
Not hard, you just need some time and calmness
- 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...
- 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...
- Mon May 08, 2023 7:13 pm
- Forum: Pictures and Videos
- Topic: MEMS Microphone
- Replies: 4
- Views: 911
Re: MEMS Microphone
Nice
- 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...
- 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...
- Mon May 08, 2023 6:10 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?
- 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...
- 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...
- 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.
I like the image without the shadow more
Digital photographers use software and analog (film) use a darkroom.
- 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...
- 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...
- Thu May 04, 2023 11:51 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: FS: Olympus SZ40 stereo in EU
- Replies: 2
- Views: 1156
- 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...
- 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...
- 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...
- 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 ...
- 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...
- 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 ...
PS: I made it parfocal
PS: I made it parfocal