Search found 222 matches

by ImperatorRex
Sat Oct 19, 2019 7:53 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Hi Hobbyst46, definitely the Zeiss Standard still performes very well, respectively if equipped with Planapos - and yes it will cost only a fraction of the invinite systems. From my experience I do not think that the SKPL 10x/20 makes a much better performance compared to a KPL 10x/20. So it is a ni...
by ImperatorRex
Sat Oct 19, 2019 6:47 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

My Zeiss Microscopes (Comparison photo adaption Zeiss Standard versus Olympus BX)

Hi, did a comparison of my photo adaptions I use currently: green rectangle: Olympus BX with Canon EOS600D (the intermediate image is directly projected to the camera sensor) red rectangle: Zeiss Standard with large field optovar 0,8x - KPL SKPL 10x/20 (Ocular) - YN EF35mm (Camera objective) - Canon...
by ImperatorRex
Thu Oct 03, 2019 6:22 pm
Forum: Illumination Techniques
Topic: A small comparison between two Zeiss turret phase contrast condensers
Replies: 6
Views: 189

Re: A small comparison between two Zeiss turret phase contrast condensers

What i recognized in an instant when mounting the 0,9 condenser: The image of the field aperture is so colourful and unsharp that it is difficult to set Köhler illumination at high magnifications. This is unconvenient but the question is what does it do to the optical performance once set up proper...
by ImperatorRex
Wed Oct 02, 2019 5:23 pm
Forum: Microscopy accessories
Topic: Olympus BX40's U-READB
Replies: 2
Views: 160

Re: Olympus BX40's U-READB

Hi Bob,
interesting, so what other turrets are you fitting to your BX?
by ImperatorRex
Tue Oct 01, 2019 7:14 pm
Forum: My microscope
Topic: Finally, I got an ortholux
Replies: 6
Views: 377

Re: Finally, I got an ortholux

Very nice your Othrolux - congratulatios.
by ImperatorRex
Mon Sep 30, 2019 7:07 pm
Forum: Pictures and Videos
Topic: Colurella sp
Replies: 14
Views: 425

Re: Colurella sp

Hi 75RR, do not get me wrong - I like your photos very much and I do not really care about some noise in the photos. But if you want to remove I thought it may be a good tip. Actually I do not use Photoshop anymore since I tried the DENOISE software. It allows a kind of automatisation, so several st...
by ImperatorRex
Sun Sep 29, 2019 7:04 pm
Forum: Pictures and Videos
Topic: Colurella sp
Replies: 14
Views: 425

Re: Colurella sp

It is the software DENOISE PROJECTS. It is reducing the noise but also many other kind of automized corrections.
by ImperatorRex
Sun Sep 29, 2019 6:21 pm
Forum: Pictures and Videos
Topic: Colurella sp
Replies: 14
Views: 425

Re: Colurella sp

Hi 75RR,
very nice photos.
I have filtered to remove some noise ... hope you like it.

Image

Image
by ImperatorRex
Sat Sep 28, 2019 9:30 pm
Forum: Pictures and Videos
Topic: Arcella hemisphaerica
Replies: 5
Views: 194

Re: Arcella hemisphaerica

Like it, well done!
by ImperatorRex
Sat Sep 28, 2019 5:10 pm
Forum: Pictures and Videos
Topic: euglenozoa
Replies: 12
Views: 384

Re: euglenozoa

Thanks for the info 75RR.
I often use water instead of oil for the condensor front lense, just because of ease of cleaning. Works quite well till something like n.A. 1.2 or bit more.
by ImperatorRex
Sat Sep 28, 2019 10:00 am
Forum: Pictures and Videos
Topic: euglenozoa
Replies: 12
Views: 384

Re: euglenozoa

Very nice catches 75RR. How did you manage the oil immersion? There seems to be quite a thick liquid layer under the coverglas and this usually causes issues for such high n.a. objectives (low working distance) and oil immersion (movement or "pumping" of the coverglas due to re-focusing)? .
by ImperatorRex
Sat Sep 28, 2019 7:59 am
Forum: Microscopes and optics
Topic: Considering an inverted
Replies: 11
Views: 379

Re: Considering an inverted

Hi mintakax, probabely difficult to find a "real" complete set thats completely ready and available for use (at least on ebay). For me it is not an issue since I like to grap for parts and pieces, maybe I like this even more than observing pond samples itself :-) I like the article from Steve Beats ...
by ImperatorRex
Fri Sep 27, 2019 8:42 pm
Forum: Microscopes and optics
Topic: Considering an inverted
Replies: 11
Views: 379

Re: Considering an inverted

Here is a really cheap offer: https://www.ebay.com/itm/Carl-Zeiss-IM-35-Microscope-with-Illuminator-Power-Supply/254339279247?hash=item3b37cd698f:g:MYUAAOSwE21dYKWW On such old Zeiss IM35 I often found that nosepiece and stage table / speciment carrier needed some re-greasing. Other than that compon...
by ImperatorRex
Thu Sep 26, 2019 8:53 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Hi Wes, the Zeiss Plan Neofluar 40/0,90 is a multi-immersion objective, so the collar allows to use the immersion medium of your choice: oil, water or glycerin. Water is very convenient to use, its very easy to clean. I usually prefer the the dry objective Zeiss Planapo 40/0,95 but it has a bit a gr...
by ImperatorRex
Wed Sep 25, 2019 8:03 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Well done 75RR, much better to compare. Also think the Olympus is doing quite well, also considering it is a phase contrast objective.
by ImperatorRex
Wed Sep 25, 2019 11:07 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Some corpped images: Olympus: https://up.picr.de/36844657or.jpg Zeiss: https://up.picr.de/36844659mv.jpg Obviously the Zeiss has some advantage due to higher n.A. and the water immersion. Also cover glass of the testplate has only thickness of 0.13, so the correction collar of the Zeiss Objective ma...
by ImperatorRex
Wed Sep 25, 2019 10:54 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Hi 75RR, think the important difference is the Field of View - the adaption with the Olympus allows to capture the full FOV 22+, while the Zeiss finite has less FOV and crops a rectangle out of the FOW of 20. Direct image of the intermediate image to the sensor of the camera also mean that is is les...
by ImperatorRex
Wed Sep 25, 2019 10:37 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

A quick comparision of the Photo-Adaptions: a) Olypus BX60 - UPlanFL40/0.75 PH2 - Canon EOS 600 (with flash) Focus on Pleurosigma angulatum: https://up.picr.de/36844539ew.jpg b) Zeiss IM35 - Plan Neofluar 40/0,90 Imm - SKpl W10/20 - YN35mm F2 - Canon EOS 650 (with flash) Focus on Pleurosigma angulat...
by ImperatorRex
Tue Sep 24, 2019 6:38 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

Hi 75RR, thank you - yes it has DIK. Took quite long until I decided to buy this microscope - so hardly a day or night without dreaming about this microscope. Finally...dreams become true. Dear Wes, still an old scope, must be something like 20 or more years old I guess. But like new after fixing fe...
by ImperatorRex
Tue Sep 24, 2019 4:42 am
Forum: Pictures and Videos
Topic: Stauroneis phoenicenteron
Replies: 7
Views: 253

Re: Stauroneis phoenicenteron

Phantastic photo Wes.
by ImperatorRex
Mon Sep 23, 2019 8:58 pm
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 76
Views: 23601

Re: My Zeiss Microscopes

I am very proud to present my second "non Zeiss" member in the microscope family: An Olympus BX60 microscope. This should be really my very very last scope: https://up.picr.de/36790962ob.jpg Packing was taken seriously ... 114lb/52kg with wooden crate - air freight from oversea, has some costs but i...
by ImperatorRex
Tue Sep 10, 2019 5:18 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Universal for sale
Replies: 8
Views: 730

Re: Zeiss Universal for sale

It also has the seven hole nosepiece...a very cheap catch! Also Objectives seem to be Planapos 10 and 25 😀
Congrats to the winner of the acrion.
by ImperatorRex
Thu Sep 05, 2019 10:27 am
Forum: Microscopy accessories
Topic: Cleaning dirty DIC prisms
Replies: 15
Views: 525

Re: Cleaning dirty DIC prisms

From my experience the different Wollastan Prismns itself do no lead to new working combinations. I never found such generation good combinations. A new variable to consider is a different Frontlense like the 0.9 n.A. Frontlense. It provides sometimes new combinations with sliders not foreseen by Ze...
by ImperatorRex
Mon Sep 02, 2019 3:19 pm
Forum: My microscope
Topic: Zeiss STD 18/W/L Nosepiece turret options
Replies: 16
Views: 1149

Re: Zeiss STD 18/W/L Nosepiece turret options

Hi 75RR, I personally never tried this on a 7 nosepiece, so I cannot provide the details where exactely the collision occures (I just remember such a comment from a past forum thread). Looking at a 5x nosepiece with DIC stools I could imagine that space may become an issue if distance between holes ...
by ImperatorRex
Mon Sep 02, 2019 1:29 pm
Forum: Microscopes and optics
Topic: Which microscope is this nosepiece for?
Replies: 7
Views: 423

Re: Which microscope is this nosepiece for?

...and there is a nice multi-immerision objective fitted! :D
by ImperatorRex
Mon Sep 02, 2019 1:24 pm
Forum: My microscope
Topic: Zeiss STD 18/W/L Nosepiece turret options
Replies: 16
Views: 1149

Re: Zeiss STD 18/W/L Nosepiece turret options

One handicap of the 7 place nosepiece is also that it is to packed and therefore the DIC stools cannot be installed on such a nosepiece.
by ImperatorRex
Mon Sep 02, 2019 5:44 am
Forum: Microscopes and optics
Topic: Infinity corrected microscopes
Replies: 13
Views: 710

Re: Infinity corrected microscopes

Scarodactyl wrote: in either system type you can theoretically do direct projection without extra optics (beyond the tube lens if needed), but it is only sometimes practical depending on the microscope system. Thanks Scarodactyl. As far as I know the issue with the finitey system is that oculars ar...
by ImperatorRex
Sun Sep 01, 2019 10:08 am
Forum: Microscopes and optics
Topic: Fine focus gone ...
Replies: 30
Views: 1848

Re: Fine focus gone ...

Hi 75RR,
indeed the fine focus of the Zeiss WL is absolutely stunning. Not just the mechanical accuracy, but also kosmetically and ergonomically the metall knobs are so nice.
by ImperatorRex
Sat Aug 31, 2019 8:25 am
Forum: Pictures and Videos
Topic: Prorocentrum sp
Replies: 4
Views: 390

Re: Prorocentrum sp

Like the video also very much, thank you 75RR for sharing.
Did you also watch the sample drying out after a while? Usually such is very usefull respectively for the high n.A. Objectives to catch details of the organells & internals.
by ImperatorRex
Sat Aug 31, 2019 8:18 am
Forum: Pictures and Videos
Topic: Nitzschia sigma
Replies: 17
Views: 1137

Re: Nitzschia sigma

Congrats 75RR - very well done :-)