Search found 2787 matches
- Tue Apr 16, 2024 4:28 pm
- Forum: Microscopes and optics
- Topic: how scared should I be of mercury lamps
- Replies: 14
- Views: 388
Re: how scared should I be of mercury lamps
Monochrome emitters are plenty strong for brightfield fluorescence, even too strong in the blue range. Even with green (lime) which is the least efficient and thus weakest for a small emitter there was no issue on the scope I set up.
- Tue Apr 16, 2024 6:10 am
- Forum: Microscopes and optics
- Topic: how scared should I be of mercury lamps
- Replies: 14
- Views: 388
Re: how scared should I be of mercury lamps
LED retrofits are not that difficult or expensive and don't tend to explode ever.
- Tue Apr 09, 2024 2:31 am
- Forum: About the website, the magazine and this forum
- Topic: Private Message Stuck in Outbox
- Replies: 5
- Views: 1071
Re: Private Message Stuck in Outbox
They can still be edited or deleted before the recipient logs in so it isnt a pointless feature either.
- Tue Apr 02, 2024 5:13 pm
- Forum: Microscopes and optics
- Topic: Wild M8 vs Wild MZ3
- Replies: 19
- Views: 1504
Re: Wild M8 vs Wild MZ3
Oh wow, it's an actual trinocular head, not the photo addon. That's a valuable piece of equipment.
- Mon Apr 01, 2024 10:10 pm
- Forum: Beginner's corner
- Topic: Viewing Head compatibility?
- Replies: 2
- Views: 411
Re: Viewing Head compatibility?
I think all the -x Olympus infinity heads are compatible, though some are better than others.
- Mon Apr 01, 2024 1:02 am
- Forum: Microscopy accessories
- Topic: B&L Stereozoom SZ7 accessiories
- Replies: 4
- Views: 658
Re: B&L Stereozoom SZ7 accessiories
In this case there is a legitimate reason for the mount. The SZ7 has like double the reolution of other SZ family members and a fairly different optical system--its max NA of 0.2 handily beats Leica's current offerings in the series (and was equal to the recently discontinued S Apo). A normal SZ len...
- Sun Mar 31, 2024 2:39 am
- Forum: Microscopy accessories
- Topic: B&L Stereozoom SZ7 accessiories
- Replies: 4
- Views: 658
Re: B&L Stereozoom SZ7 accessiories
They're not totally impossible to get. What magnification are you after? The sz7 is pretty sifferent from the others optically.
- Sat Mar 30, 2024 5:01 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
That would make him an Abberration.zondar wrote: ↑Sat Mar 30, 2024 5:00 pmI call on Abbe visit us with his ghostly apparition to set everything right!
- Sat Mar 30, 2024 4:33 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
Oh, the normal plan 10x is a really good objective for its price, excellent corner to corner performance even direct on full frame and it also works surprisingly well with DIC, though I'd need to retest the best slider/condenser prism combo.
- Sat Mar 30, 2024 5:43 am
- Forum: Microscopes and optics
- Topic: Mystery Carl Zeiss Microscope
- Replies: 5
- Views: 588
Re: Mystery Carl Zeiss Microscope
Jokes aside they totally do for surgical applications.Sure Squintsalot wrote: ↑Fri Mar 29, 2024 9:05 pmYou're right. That is an unusual scope. In fact, I wasn't even aware that Zeiss made wall-mounted microscopes.
- Fri Mar 29, 2024 5:56 pm
- Forum: Microscopes and optics
- Topic: Olympus X-Line Objectives
- Replies: 6
- Views: 907
Re: Olympus X-Line Objectives
Macro Cosmos has tried them and they're definitely better than the previoud sapo line. They're not brand new and they go back before the Evident selloff.
- Fri Mar 29, 2024 4:45 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
- Wed Mar 27, 2024 9:56 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
I've never had problems with canon efcs, it is vibration free during shooting.
- Wed Mar 27, 2024 9:50 pm
- Forum: My microscope
- Topic: Euromex Microscopes?
- Replies: 5
- Views: 763
Re: Euromex Microscopes?
They are largely Chinese but they also have a relationship with Meiji and sell some of their Japanese made microscopes under their own brand.
- Wed Mar 27, 2024 1:34 am
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
I'd watch for a favorable auction, not a buy it now. I got mine for 450, this one is starting at 600 but it's also VC (a little better than apo) https://www.ebay.com/itm/315246893929
- Tue Mar 26, 2024 8:30 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
Just saying this may be worth a bid https://www.ebay.com/itm/276399144621
- Mon Mar 25, 2024 8:30 pm
- Forum: Microscopes and optics
- Topic: Wild M8 vs Wild MZ3
- Replies: 19
- Views: 1504
Re: Wild M8 vs Wild MZ3
The trinocular addon is quite valuable in its own right. You did well.
- Sun Mar 24, 2024 8:29 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
Using my planapo 60x/1.40 on my e800 was a bit disappointing since it has a dry condenser which throttles resolution. The oil condenser is very rare, I have never seen one for sale. I get better results using it with epi illumination/epi DIC on my other scope since it acts as its own high na oil con...
- Sun Mar 24, 2024 8:23 pm
- Forum: Microscopes and optics
- Topic: Leica Reichert Jung Polyvar (models)
- Replies: 88
- Views: 36121
Re: Leica Reichert Jung Polyvar (models)
Yes but the f.N. only matches the real or viewed ield with a 10X eyepiece.because they are the default and the system's logic is based entirely on 10X eyepieces. It seems to me that the confusion is arising from thinking of it this way, even if there's nothing technically wrong with it. A 1x object...
- Sun Mar 24, 2024 6:43 am
- Forum: Microscopes and optics
- Topic: Leica Reichert Jung Polyvar (models)
- Replies: 88
- Views: 36121
Re: Leica Reichert Jung Polyvar (models)
Field number is based on a hypothetical 1x objective, not a 10x eyepiece. It's just a question what the diameter of the imaged field would be with a 1x objective, regardless of how large it looks to the eye.
- Fri Mar 22, 2024 10:42 pm
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 61
- Views: 3589
Re: Do I need another objective?
First things first, get a cheap 20x/0.75 apo. Make sure it is the labeled one. It's an incredible objective and absurdly cheap because they were widely used in gene sequencers. The 20x fluor slider works pretty well with it. Edit: currently the price is a bit higher, the last glut was a while back. ...
- Fri Mar 22, 2024 8:57 pm
- Forum: Microscopes and optics
- Topic: GF Planachromat infinity optics for Jenamed microscope
- Replies: 15
- Views: 1094
Re: GF Planachromat infinity optics for Jenamed microscope
I think the 1x also required a special upper lens like some Nikon cfi60s did a generation or two ago (1x macro).
- Fri Mar 22, 2024 8:56 pm
- Forum: Microscopes and optics
- Topic: Wild M8 vs Wild MZ3
- Replies: 19
- Views: 1504
Re: Wild M8 vs Wild MZ3
Don't get an M3b imo unless it is quite cheap. Being a step mag isn't bad but only having 3 settings is a bit of a bummer vs 5 on the m3c or continuous on the m3z, the C is a basically strictly better with no optical downside, the m3z is somewhat nicer to use even if the zoom probably has some optic...
- Thu Mar 21, 2024 7:11 pm
- Forum: Microscopes and optics
- Topic: Polylite SC endusers(?)
- Replies: 49
- Views: 3030
Re: Polylite SC endusers(?)
Congratulations! Looks like you're getting good shots.
- Thu Mar 21, 2024 4:04 am
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB AO 570 or 580
- Replies: 4
- Views: 705
Re: WTB AO 570 or 580
That's a very good deal in my opinion. Good 580s are rare.
- Thu Mar 21, 2024 1:10 am
- Forum: Microscopes and optics
- Topic: Leica Reichert Jung Polyvar (models)
- Replies: 88
- Views: 36121
Re: Leica Reichert Jung Polyvar (models)
Btw I wanted to say thanks again for sharing your unique insights on all this.
- Wed Mar 20, 2024 11:55 pm
- Forum: Microscopes and optics
- Topic: Leica Reichert Jung Polyvar (models)
- Replies: 88
- Views: 36121
Re: Leica Reichert Jung Polyvar (models)
B&L made at least one DIC system, epi DIC for the balplan. A rare but impressive piece of equipment. The AO epi is also pretty exceptional.
- Thu Mar 14, 2024 10:39 pm
- Forum: Microscopes and optics
- Topic: Reichert U.S.A. and Leica. Why the undercorrection?
- Replies: 10
- Views: 807
Re: Reichert U.S.A. and Leica. Why the undercorrection?
I understand why this was necessary in the 60s and earlier, but I do find it odd that Nikon was able to manage so well without additional corrections in the 80s, followed by Olympus and Mitutoyo, while Leica and Zeiss cling to it still. I kind of assume Leica and Zeiss should have the best engineers...
- Tue Mar 12, 2024 5:25 pm
- Forum: My microscope
- Topic: what objectives have you tried on wild M8
- Replies: 1
- Views: 609
Re: what objectives have you tried on wild M8
65mm thread objectives have an added 1.25x magnification on m50/m60 systems like the M8, so it would act as a ~0.78x. Leica plan apo stereo objectives are quite nice.
- Tue Mar 05, 2024 11:55 pm
- Forum: Microscopes and optics
- Topic: Polylite SC endusers(?)
- Replies: 49
- Views: 3030
Re: Polylite SC endusers(?)
That .32X fractional lens is to compensate for the tube length and reduce unwanted alterations in W.D. It isn't needed if the tube length is kept to something close to the reference length. My understanding is thst, as designed, a viewing or afocal photo eyepiece projects an image at infinity focus...