Search found 187 matches

by Oliver
Wed Jul 08, 2015 8:28 pm
Forum: Resources (online, books etc.)
Topic: Olympus microscope documentation
Replies: 0
Views: 2177

Olympus microscope documentation

Quite comprehensive collection of Olympus manuals:
http://www.alanwood.net/photography/oly ... loads.html
by Oliver
Tue Jun 30, 2015 8:41 am
Forum: Beginner's corner
Topic: Seeking advice on my first microscope
Replies: 18
Views: 4406

Re: Seeking advice on my first microscope

Hello, not the AmScope B100B-MS, as it does not seem to have a light intensity control. The other Amscope ones are fine in this respect. The knobs for the mechanical stage are also horizontal, which is inconvenient. If you look at the objectives, you will see that some of them use the same, so there...
by Oliver
Mon Jun 29, 2015 9:50 pm
Forum: Camera systems and imaging
Topic: centre white spot
Replies: 3
Views: 2433

Re: centre white spot

The bright spot could be due to the reflection of light inside the phototube. once had a similar issue. Closing the koehler diaphragm resolved this (should you microscope have this), alternatively you might want to check if the inside of the tubes are sufficiently dark, to reduce reflection.
Oliver.
by Oliver
Sat Jun 27, 2015 5:17 am
Forum: Camera systems and imaging
Topic: Canon Live View - storing to laptop?
Replies: 8
Views: 3416

Re: Canon Live View - storing to laptop?

Hello, This is called "tethered shooting". Here is a link explaining it for Canon cameras. http://www.jibble.org/canon-tethered-shooting/ If you use the Canon software, then you can directly store the images directly on the computer. The software also allows you to take automatic interval pictures, ...
by Oliver
Fri Jun 19, 2015 5:33 pm
Forum: About the website, the magazine and this forum
Topic: Posting of images, which are not your own
Replies: 5
Views: 4204

Re: Posting of images, which are not your own

Hello, Yes, it is correct that hot linking might be also considered "stealing" of bandwidth or of the image, because you make it appear that someone elses image is your own. And indeed there have been cases like this before. I remember from the news that a company once sued for embedding weather cha...
by Oliver
Wed Jun 17, 2015 8:43 pm
Forum: Sandbox
Topic: Hot link and copy protection
Replies: 4
Views: 3686

Re: Hot link and copy protection

Intresting: when creating the post the image will hotlink, later it will not show. Even though there is a direct image address. Clicking on the link directly will forward to the homepage. http://theqcc.hennig.ca/Jun/17/Dolerite%20100x_125.jpg right-clicking can be enabled by disabling javascript, bu...
by Oliver
Wed Jun 17, 2015 8:27 pm
Forum: Sandbox
Topic: Hot link and copy protection
Replies: 4
Views: 3686

Re: Hot link and copy protection

Hello, The hotlink and copy protection makes it more difficult to hotlink and copy images, but once something is online, it is out there. You can always make a screenshot and then save the picture this way. I think that putting a watermark is generally a good idea, and also reducing the image resolu...
by Oliver
Sun Mar 08, 2015 6:58 pm
Forum: About the website, the magazine and this forum
Topic: Is there any way you, the adminstrator, can delete posts
Replies: 2
Views: 2643

Re: Is there any way you, the adminstrator, can delete posts

Hello,
There are, unfortunately, always posts, which are either ads or simply copy-pasted fromother posts. I would indeed prefer private messages and I will then remove them. I have already made the registration questionmore difficult, but there are always posts and members that sneak through.
Oliver
by Oliver
Sun Feb 22, 2015 7:26 am
Forum: Specimens, samples and slides
Topic: Water organisms in cold water
Replies: 6
Views: 4824

Re: Water organisms in cold water

The index needs to be updated, I will do this.
Oliver
by Oliver
Sun Jan 04, 2015 10:53 pm
Forum: About the website, the magazine and this forum
Topic: Quota issues
Replies: 4
Views: 2865

Re: Quota issues

Should work now..... hopefully!
Oliver.
by Oliver
Sun Jan 04, 2015 12:37 pm
Forum: About the website, the magazine and this forum
Topic: Quota issues
Replies: 4
Views: 2865

Quota issues

Dear forum members, Several members have experienced quota problems. The forum software limits the upload to 100MB (this is called the "quota") and the maximum storage space that the forum allows per user. I highly encourage all users who experience this issue to register at a free photo hosting sit...
by Oliver
Fri Jan 02, 2015 7:28 am
Forum: Sandbox
Topic: Forum Page???
Replies: 2
Views: 2653

Re: Forum Page???

first log in with the password sent to you, go to user control panel on top right, then profile, edit account settings.
oliver
by Oliver
Fri Jan 02, 2015 7:25 am
Forum: Beginner's corner
Topic: Is this normal?
Replies: 4
Views: 2489

Re: Is this normal?

Hello, A microscope that is put together is normal. the white spots appear to be reflections of some light. i assume that the camera takes the placeof one of the eyepieces. cover the second eyepiece, it could be that light entering the second eyepiece causes these reflections. the reflections stay t...
by Oliver
Mon Dec 29, 2014 7:33 am
Forum: Identification help
Topic: ID help needed. Parasites?
Replies: 5
Views: 2772

Re: ID help needed. Parasites?

Self-diganosis rarely works. 1/3 of the dry weight of stool are bacteria anyway. It is impossible in most cases to determine the organism directly from observation. You need biochemical or histological tests to do this. Chances are too big that you are simply observing indigestible food matter, etc....
by Oliver
Mon Dec 29, 2014 7:28 am
Forum: Sandbox
Topic: Black posts on Wild stero stand
Replies: 1
Views: 2413

Re: Black posts on Wild stero stand

Just guessing: maybe these are able to hold so-called swan-neck lamps for illumination of the specimen from both sides. Swan-neck lamps have a lamp on the tip but can be bent into place, because the "neck" is flexible. But I am only guessing.
Oliver
by Oliver
Mon Dec 29, 2014 7:09 am
Forum: Microscopes and optics
Topic: Which format to save your photos?
Replies: 12
Views: 3844

Re: Which format to save your photos?

Hello, JPG: lossy compression, image quality goes down when saved, but low image size and the loss of quality can be adjusted and in most cases not noticable. Used for the web due to small size, it is the standard for photography and can/should be used TIFF: loss less compression, used when processi...
by Oliver
Sun Dec 28, 2014 9:19 am
Forum: Identification help
Topic: What am I looking at (blood sample)?
Replies: 5
Views: 5409

Re: What am I looking at (blood sample)?

The stacking is due to the drying of the blood. Some alternative medicine advocates see in this rouleaux formation (as it is called) some diagnostic value, but there is noscientific evidence for this. The spiky red blood cells are due to osmotic imbalance, as the blood dries. It can also be that som...
by Oliver
Thu Dec 25, 2014 6:11 am
Forum: Microscopes and optics
Topic: M82ES having trouble fitting in an eyepiece
Replies: 4
Views: 2177

Re: M82ES having trouble fitting in an eyepiece

Hello,
Do not attempt to fix anything, you might end up making things worse and then the seller has an argument for not exchanging the microscope. If the "ring bump" is due to external force (bent metal?), then maybe there are other things also wrong. Mictoscope should be exchanged.
Oliver.
by Oliver
Wed Dec 24, 2014 12:45 pm
Forum: About the website, the magazine and this forum
Topic: Request for Help Please Part II
Replies: 6
Views: 3328

Re: Request for Help Please Part II

Hello, This forum is so active, that I almost overlooked this thread... Sorry for the late reply. Basically any method is fine. If I get your OK in advance, then I will simply pull the images posted on the forum and re-use them in the magazine (using your name, etc.). This is only meaningful, if the...
by Oliver
Fri Dec 19, 2014 6:03 am
Forum: About the website, the magazine and this forum
Topic: Request for help, please!
Replies: 15
Views: 10067

Re: Request for help, please!

I should have read the thread better!!
A big thank you to JimT and 75RR as well! There is one question left, however, and this is how to attribute the pictures in the magazine. What name do you want me to include beneath the pictures?

All the best, Oliver
by Oliver
Thu Dec 18, 2014 9:31 pm
Forum: About the website, the magazine and this forum
Topic: Request for help, please!
Replies: 15
Views: 10067

Re: Request for help, please!

A big thank you to Gekko and to Manfred to giving me permission! General info: While it is possible to only publish the pictures on this forum (or link them), it is sometimes better to send me the originals of higher resolution for republication. If you use photo hosting services, then the image siz...
by Oliver
Tue Dec 16, 2014 11:01 am
Forum: Identification help
Topic: Bacteria maybe?
Replies: 2
Views: 1815

Re: Bacteria maybe?

Hello,
Bacteria are unlikely, because an internal structure is visible. Most bacteria do not have internal structures visible with light microscopes (except PHB deposits or endospores).
Oliver
by Oliver
Tue Dec 09, 2014 9:37 pm
Forum: Microscopes and optics
Topic: New Lab Microscope for Imaging Blood Cells - less than $3000
Replies: 18
Views: 8432

Re: New Lab Microscope for Imaging Blood Cells - less than $

Hello, My interest in imaging blood cells is purely from an Art/Micrography/Microscopy perspective and not diagnose/analysis. OK. For your information, the second video is a textbook example of pseudoscience: it claims to be scientific, by using scientific terminology, but it is not. I wonder if the...
by Oliver
Sat Nov 29, 2014 10:19 am
Forum: Introduce yourself
Topic: Hello - introduction
Replies: 3
Views: 2591

Re: Hello - introduction

Thanks to Oliver whose behind-the-scenes efforts make this forum available to us.
And thanks to the whole community, which keeps the forum active and alive with valuable contributions!

Oliver.
by Oliver
Thu Nov 27, 2014 7:15 pm
Forum: Identification help
Topic: ID please
Replies: 6
Views: 2688

Re: ID please

These structures look like plant trichomes:
http://www.denniskunkel.com/DK/Plants/97999A.html

Scroll down to the middle:
http://cactiguide.com/forum/viewtopic.php?p=163054

Oliver
by Oliver
Tue Nov 25, 2014 5:36 am
Forum: Camera systems and imaging
Topic: That strange yellow glow...?
Replies: 5
Views: 2661

Re: That strange yellow glow...?

1. rotate the camera. if the position of the glow stays, then you have a camera issue. 2. remove the camera from the microscope and hold it to an even light sourse. check if the glow remains. aif so, then the problem is with the camera and not the microscope. I suspect that it might be a problem wit...
by Oliver
Sat Nov 22, 2014 1:49 pm
Forum: Microscopes and optics
Topic: Oil Objectives
Replies: 5
Views: 2504

Re: Oil Objectives

if you want to use pond life, then you use water, of course, and then coverglass with oil. But this is difficult, because the pond life swims in and out of focus, and the depth of field of the 100x oil objective is quite low. You must make sure that the water film is sufficiently thin. I always used...
by Oliver
Sat Nov 22, 2014 11:14 am
Forum: Microscopes and optics
Topic: Oil Objectives
Replies: 5
Views: 2504

Re: Oil Objectives

Hi, Do's: remove oil after use to reduce dust accumulation, but do not overclean to avoid scratches (clean lightly only, using lens paper) use oil as mounting medium (no cover glass), no water. use synthetic oil, natural oil can become hard make sure specimen is flat (eg bacteria sticking on slide) ...
by Oliver
Sat Nov 22, 2014 8:51 am
Forum: Pictures and Videos
Topic: To be relative or not to be. That is the question.
Replies: 5
Views: 1828

Re: To be relative or not to be. That is the question.

Hello, If you look at the photo contest winners (Nikon, Olympus have microphotography contests), then I think both aspects count. The images are pretty, but also are able to illustrate interesting scientific concepts or unusual perspectives or views. So they are "absolute" (i.e. absolutely pretty, a...