Search found 72 matches
- Fri Oct 18, 2019 6:13 pm
- Forum: Beginner's corner
- Topic: Nikon Plan APO 40x 160 TL in an OMAX (Chinese Microscope) 160 TL?
- Replies: 9
- Views: 1098
Re: Nikon Plan APO 40x 160 TL in an OMAX (Chinese Microscope) 160 TL?
Remember too that there are Nikon planapo and Nikon CF planapo, so there are differences between those too. I believe those need differing compatible eyepieces CFW and CFWN respectably. Someone more familiar with Nikon than I , would know more about their compatability specs and performance charact...
- Thu Sep 26, 2019 9:19 pm
- Forum: Microscopes and optics
- Topic: Upgrading a Nikon E Plan PH3 Objective
- Replies: 11
- Views: 929
Re: Upgrading a Nikon E Plan PH3 Objective
While I don't own all of the Nikon objective grades in their phase contrast versions, I have fairly significant collection of Nikon CF/CFN objectives so that I should be able to provide a fairly informed opinion about the optical quality of each series. Nikon 40x: I have an E plan 40x 0.65, a CFN pl...
- Mon Sep 09, 2019 6:44 pm
- Forum: Microscopes and optics
- Topic: Stereo Triocular or Binocular
- Replies: 25
- Views: 1446
Re: Stereo Triocular or Binocular
I think that the best solution for you would be to use microscope objectives directly on a bellows. The resolution and image quality is way better than a stereo microscope. Stereo microscopes really aren't suited for photography. Here's a good intro: https://www.photomacrography.net/forum/viewtopic....
- Sat Sep 07, 2019 9:31 pm
- Forum: Digital processing
- Topic: Photoshop CS6 v Helicon v Zerene,and the rest
- Replies: 21
- Views: 2081
Re: Photoshop CS6 v Helicon v Zerene,and the rest
Looks promising for sure. But it seems like you lost much of the dynamic range when you converted them to .gif - as seen in the stepped, not smooth, color gradient in the background. Probably better to save them as jpegs.
- Sat Sep 07, 2019 12:17 pm
- Forum: Digital processing
- Topic: Photoshop CS6 v Helicon v Zerene,and the rest
- Replies: 21
- Views: 2081
Re: Photoshop CS6 v Helicon v Zerene,and the rest
Stacking very often improves things dramatically, even if you're only using three or four images. That said, you do need to be a bit careful when taking the pictures. If you haven't stacked microscopic subjects before (or any subjects, for that matter) I wouldn't rule out the possibility that your p...
- Thu Sep 05, 2019 8:14 pm
- Forum: Pictures and Videos
- Topic: Rotifer and some algae
- Replies: 12
- Views: 1218
Re: Rotifer and some algae
Hej Håkan,
I've admired your work for quite some time. Good to see you post on here as well! Amazing and inspiring photos as always.
Viktor, in Lund
I've admired your work for quite some time. Good to see you post on here as well! Amazing and inspiring photos as always.
Viktor, in Lund
- Wed Sep 04, 2019 6:13 pm
- Forum: Microscopy accessories
- Topic: Cleaning dirty DIC prisms
- Replies: 15
- Views: 1099
Re: Cleaning dirty DIC prisms
DIC prisms (Wollaston or Nomarski) are simply two very precisely made wedges of quartz or calcite that are cemented together with some sort of optical cement. Not sure what crystal and cement Zeiss used, though. If it's quartz (hardness: 7), it's really hard and I imagine very hard to damage when cl...
- Sun Sep 01, 2019 3:17 pm
- Forum: Specimens, samples and slides
- Topic: Potted Bamboo Hand Sectioned
- Replies: 30
- Views: 2549
Re: Potted Bamboo Hand Sectioned
That is true, but I also mean that stacking algorithm will find and combine the sharp parts, even if they occur in different pictures. So the central parts will be sharp in one picture, and the peripheral parts will be sharp in another picture. Put another way, a lens that isn't plan may be very sha...
- Sun Sep 01, 2019 8:21 am
- Forum: Specimens, samples and slides
- Topic: Potted Bamboo Hand Sectioned
- Replies: 30
- Views: 2549
Re: Potted Bamboo Hand Sectioned
Actually, since in most cases you are going to stack the pictures anyway, it might not be a big deal if a 4x isn't plan. The Lomo 3.7x for example is exceptionally sharp and free of CA when used for macro work, but it is far from plan.
- Tue Aug 27, 2019 11:00 pm
- Forum: Microscopes and optics
- Topic: Nikon Fluor objectives on a Leitz stand
- Replies: 34
- Views: 4154
Re: Nikon Fluor objectives on a Leitz stand
They can be pretty good value for sure, I got my set of 10x 0.50, 20x 0.75 and 40x 0.85 Nikon Fluor's for $250 (originally $300, but the seller knocked off $50 because the correction collar on the 40x was stuck, which I have since fixed). I also have the 40x 1.30 oil, but paid a bit more for it. All...
- Fri Aug 23, 2019 9:42 pm
- Forum: Microscopes and optics
- Topic: Nikon Fluor objectives on a Leitz stand
- Replies: 34
- Views: 4154
Re: Nikon Fluor objectives on a Leitz stand
Did you try to clean it? I once had an objective that looked ok when inspected by eye, but produced an inferior, washed-out image in practice. Turned out the front lens was covered by a thin layer of dried-up immersion oil. After cleaning, it was perfect. A high-NA 40x seems like a prime candidate f...
- Mon Jul 15, 2019 9:38 pm
- Forum: Microscopes and optics
- Topic: Unbranded NEW 4X Planachromate objective on a Zeiss Standard microscope
- Replies: 32
- Views: 2441
Re: Unbranded NEW 4X Planachromate objective on a Zeiss Standard microscope
CF/CF N distinction is also discussed here:
https://www.photomacrography.net/forum/ ... hp?t=10661
https://www.photomacrography.net/forum/ ... hp?t=10661
- Mon Jul 15, 2019 9:31 pm
- Forum: Microscopes and optics
- Topic: Unbranded NEW 4X Planachromate objective on a Zeiss Standard microscope
- Replies: 32
- Views: 2441
Re: Unbranded NEW 4X Planachromate objective on a Zeiss Standard microscope
An excellent set of reference images ... Thanks for sharing them. May I just ask: is that Nikon objective designated 'CF' ? ... and could you please post a photo of it, to aid identification. MichaelG. . Edit: if it's like this one ... no photo needed https://www.ebay.com/itm/Nikon-Plan-4X-0-1-160-...
- Sun Jul 14, 2019 6:58 pm
- Forum: Microscopes and optics
- Topic: Looking for a User's Manual for American Optical Epistar scope.
- Replies: 11
- Views: 1234
Re: Looking for a User's Manual for American Optical Epistar scope.
Charles Krebs constructed an even simpler setup using a UV flashlight, with really nicely results.
https://www.photomacrography.net/forum/ ... hp?t=33123
https://www.photomacrography.net/forum/ ... hp?t=33123
- Mon Jul 08, 2019 3:23 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WANTED - Olympus 60x dry infinity objective
- Replies: 19
- Views: 1750
Re: WANTED - Olympus 60x dry infinity objective
Never hurts to put in an offer for whatever you are willing to pay...
- Sat Jul 06, 2019 7:20 pm
- Forum: Pictures and Videos
- Topic: Achnanthes sp.
- Replies: 4
- Views: 704
Re: Achnanthes sp.
Spectacular photo!
How do you prepare these samples? Are they simple water mounts? I love seeing them 'fresh' like this.
How do you prepare these samples? Are they simple water mounts? I love seeing them 'fresh' like this.
- Sun Jun 23, 2019 6:12 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Wanted: Nikon CF plan apo 60x
- Replies: 8
- Views: 2390
Re: Wanted: Nikon CF plan apo 60x
As I said, I also have it and give it both my thumbs up. It's quite a spectacular objective, virtually zero false color. A friend has compared it directly to the newer CFN 60x 0.95 version. The CFN apparently has a little higher contrast, but they are very close. Sure, the very best modern infinity ...
- Wed Jun 19, 2019 4:15 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Wanted: Nikon CF plan apo 60x
- Replies: 8
- Views: 2390
Re: Wanted: Nikon CF plan apo 60x
There seems to be one available at dealcorner for $390: https://www.dealcorner.com/Nikon-Objectives/ One sold on auction on eBay in May for $249. I paid a around $225 for mine, but with a bit higher risk. That should give you an indication of what the lowest price you can reasonable expect to get on...
- Fri Jun 14, 2019 4:55 pm
- Forum: Beginner's corner
- Topic: Why do these two 20x objectives have a price difference?
- Replies: 24
- Views: 2047
Re: Why do these two 20x objectives have a price difference?
For example, I do not have a 4X objective. Perhaps a cheap 4X, 160mm Plan or PlanF objective might do, especially at at $20-$30. But if the WD is unknown, then what ? Since it's virtually guaranteed that a new Chinese 4x is at least very near 45mm parfocal DIN, then it's easy to see based on a phot...
- Wed Jun 12, 2019 10:21 am
- Forum: Illumination Techniques
- Topic: dIY DIC
- Replies: 29
- Views: 3912
Re: dIY DIC
Good point, John. I've been wondering why so few people talk about DIC using a slit condenser. If I've understood it correctly, the plasDIC system is basically a rebranding of the techniques that were already fully described in the very earliest DIY literature. (And implemented, for example, in the....
- Sat Jun 08, 2019 7:55 pm
- Forum: Illumination Techniques
- Topic: dIY DIC
- Replies: 29
- Views: 3912
Re: dIY DIC
A while ago I picked up a Nikon optiphot nosepiece that came with 4 epi DIC prisms: 5x, 10/40/100x (2pcs) and 20x prisms. Paid $180 for it. (It also came with 20x and 40x M plan objectives.) I've been experimenting a bit with these prisms on my Wild M20 stand. I still haven't optimized anything: I'v...
- Tue May 07, 2019 9:46 am
- Forum: Identification help
- Topic: Tiny Caterpillar?
- Replies: 2
- Views: 894
Re: Tiny Caterpillar?
It's Polyxenus sp.
- Fri Apr 26, 2019 2:17 pm
- Forum: Microscopes and optics
- Topic: Possible to lubricate iris-equipped objectives?
- Replies: 17
- Views: 3244
Re: Possible to lubricate iris-equipped objectives?
I'm pleased that worked out for you. Generally, those little seams can't take very much oil at a time anyway, with the excess flooding the surface awaiting removal. The size of the drop that gets absorbed at any one time, is pretty much self limiting. Glad to hear you say that. I re-applied oil to ...
- Fri Mar 01, 2019 8:35 pm
- Forum: Microscopes and optics
- Topic: A new AO objective design!?
- Replies: 13
- Views: 1539
Re: A new AO objective design!?
I have a Nikon CF Fluor 10x 0.50 objective where quite a bit of the black paint has come off due to poor packaging by an eBay seller. I got a partial refund, but kept it as the image is really good despite this. If you look through it at an angle, the damage is very obvious. But viewed straight thro...
- Sun Feb 24, 2019 5:11 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Looking for Wild Heerbrugg/Leica Photo Eyepiece Adapter 445932
- Replies: 4
- Views: 1599
Re: Looking for Wild Heerbrugg/Leica Photo Eyepiece Adapter 445932
If you bought it on eBay you definitely will get your money back, just report it as 'not as described'. Did you?
- Fri Feb 01, 2019 1:17 pm
- Forum: Beginner's corner
- Topic: Picture magnification question?
- Replies: 8
- Views: 2458
Re: Picture magnification question?
https://www.ebay.com/itm/171573622127
I have one of these that have both a grid and a scale, works very well and costs little.
I have one of these that have both a grid and a scale, works very well and costs little.
- Wed Jan 30, 2019 11:33 am
- Forum: Off Topic
- Topic: Single Cell Microbiology...
- Replies: 5
- Views: 4073
Re: Single Cell Microbiology...
The name "3D_man" suggests that it might be a 3D rendering, which I think is exactly what it is.
- Sun Jan 27, 2019 6:50 am
- Forum: My microscope
- Topic: Reichert Zetopan IK
- Replies: 13
- Views: 5716
Re: Reichert Zetopan IK
As a fellow with Nikon CF objectives on a black vintage microscope stand, I applaud you! What eyepieces do you have on there? A CF PL the trinocular? But the ones in the binocular head don't look like Nikon CF?
- Tue Jan 22, 2019 7:23 pm
- Forum: Camera systems and imaging
- Topic: reflection in center of FOV
- Replies: 43
- Views: 10544
Re: reflection in center of FOV
I use Doodlebug Design Crushed Velvet cardstock from scrapbook.com - highly recommended. Better than protostar. Never seen vantablack, but black 2.0, seems to have been a bit of marketing hyperbole.
- Tue Jan 22, 2019 6:36 pm
- Forum: Illumination Techniques
- Topic: Vertical Illuminator for Nikon Labophot question
- Replies: 14
- Views: 4844
Re: Vertical Illuminator for Nikon Labophot question
SA = spherical aberration.