Search found 397 matches

by The QCC
Sun Jun 28, 2015 4:24 pm
Forum: Camera systems and imaging
Topic: Remembering a green hue
Replies: 10
Views: 4431

Re: Remembering a green hue

If you have a printer that can print accurate colours you may want to look at this link.
Pantone colour chart
by The QCC
Sun Jun 28, 2015 3:51 pm
Forum: Pictures and Videos
Topic: Renovation rubble, part 2
Replies: 5
Views: 1965

Renovation rubble, part 2

Part 1 of Renovation Rubble the thin section thickness was approx. 110 microns. The sample has been polished a bit more and now is approx. 90 microns. My thickness calculations in the past have ignored the layer of epoxy bonding the specimen to the glass slide. That omission resulted in a couple of ...
by The QCC
Sun Jun 28, 2015 1:46 am
Forum: Camera systems and imaging
Topic: Canon Live View - storing to laptop?
Replies: 8
Views: 3644

Re: Canon Live View - storing to laptop?

SteveSteve: I use a Canon 1000D on my microscopes. The Canon EOS utilities Remote Shooting is perfect for saving your photos on the PC. You also have the option of storing on both the camera and PC at the same time. If you did not get the CD with your camera, you can download the CD from Canon. Go t...
by The QCC
Thu Jun 25, 2015 11:25 pm
Forum: Home-made microscope adaptations
Topic: Experimentations with high powered LEDs for microscope illumination
Replies: 122
Views: 26742

Re: Experimentations with high powered LEDs for microscope illumination

Gekko: My first replacements for the mercury battery came from Gossen in Germany. They provided a small conversion kit and two silver oxide batteries. I recently have started using E625G manganese oxide batteries. REPLACES EPX625 The Cree CXA1310 looks interesting. I downloaded several application n...
by The QCC
Thu Jun 25, 2015 9:56 pm
Forum: Home-made microscope adaptations
Topic: Experimentations with high powered LEDs for microscope illumination
Replies: 122
Views: 26742

Re: Experimentations with high powered LEDs for microscope illumination

Crater Eddie: What wattage of halogen lamp did you replace with your 10w LED light source? I tried a 10W LED in my Labomed LB-592 with dismal results. The Labomed has a 100w (2000 lumen) halogen lamp. By my calculations, I would need a 25w LED replacement. I have a Gossen light meter with a microsco...
by The QCC
Thu Jun 25, 2015 6:08 pm
Forum: Microscopes and optics
Topic: The improper use of a condenser with swing out lens. An observation.
Replies: 4
Views: 3019

Re: The improper use of a condenser with swing out lens. An observation.

Judd: I am not familiar with AO microscopes with light source swing out lens, but I can tell you what the condenser and its aperture do in a not very technical way. When you are using a low power objective, one less than 10x, the condenser lens should be OUT. when using a higher power obj, 10x and a...
by The QCC
Thu Jun 25, 2015 1:43 am
Forum: Microscopes and optics
Topic: The improper use of a condenser with swing out lens. An observation.
Replies: 4
Views: 3019

The improper use of a condenser with swing out lens. An observation.

The linked presentation shows the relationship between the condenser, resolution and contrast when the condenser is improperly used. The microscope is a Labomed polarizing unit with swing out condenser and field diaphragm. The condenser with the swing out lens in place has a N.A. of 1.15 and a N.A. ...
by The QCC
Wed Jun 24, 2015 3:00 am
Forum: Pictures and Videos
Topic: And you thought sulphur was bright yellow.
Replies: 3
Views: 1185

Re: And you thought sulphur was bright yellow.

My method to working with soft and porous material is to soak the object in a diluted solution of Elmer's Glass glue. When the object is removed from the solution and dried it is quite workable.
by The QCC
Tue Jun 23, 2015 10:36 pm
Forum: Pictures and Videos
Topic: And you thought sulphur was bright yellow.
Replies: 3
Views: 1185

And you thought sulphur was bright yellow.

I cut a small chunk of really bright yellow sulphur in half and made them into thin section slides. The first grinding stage was with a 150 grit paper that produced a lot of sulphur dust. The dust was sprinkled into a puddle of glass glue and spread along a slide. Thus there are three samples: a) A ...
by The QCC
Mon Jun 22, 2015 11:51 am
Forum: Specimens, samples and slides
Topic: Half way up the learning curve.
Replies: 5
Views: 2424

Re: Half way up the learning curve.

I started out grinding on a glass lapping plate with silicon carbide grits. That method worked if I could cut a starting slice thin enough. Which I had great difficulty doing without a proper saw. I have "graduated" to using a power saw, flat lap machine and finishing off with the glass lap and 1 mi...
by The QCC
Sat Jun 20, 2015 11:04 pm
Forum: Specimens, samples and slides
Topic: Half way up the learning curve.
Replies: 5
Views: 2424

Re: Half way up the learning curve.

Dennis:

Thank you for the suggestion.

There is a guitar shop in out city. I will contact them.
by The QCC
Sat Jun 20, 2015 10:20 pm
Forum: Specimens, samples and slides
Topic: Half way up the learning curve.
Replies: 5
Views: 2424

Half way up the learning curve.

Eight preliminary thin section slides. The presentation shows the preliminary results of making eight thin section slides from mostly domestic rocks. Domestic in that I picked them up while out walking along the local creek. The slides need further grinding and polishing to achieve the 30 micron "id...
by The QCC
Sat Jun 20, 2015 6:08 pm
Forum: Pictures and Videos
Topic: Under the "G" - 7
Replies: 3
Views: 1040

Re: Under the "G" - 7

BillBillt wrote:Are these thin sections that you made?....
No, these are commercial preparations.

Some of mine are coming. Real soon now.
by The QCC
Sat Jun 20, 2015 3:47 am
Forum: Pictures and Videos
Topic: Under the "G" - 7
Replies: 3
Views: 1040

Under the "G" - 7

Bingo!
Glaucophane
Glaucophane
Glaucophane2L5X_15-10x-S100.jpg (92.49 KiB) Viewed 1040 times
Seven minerals that start with the letter "G"[/b][/url]
by The QCC
Wed Jun 17, 2015 9:04 pm
Forum: Sandbox
Topic: Hot link and copy protection
Replies: 4
Views: 3906

Re: Hot link and copy protection

Thanks for the comments. There are two levels of protection. One on the web page and another on the server. It is not the most secure as anyone with any knowledge of HTML can look at source or do a screen copy and save the image off line. I am part of an artists group that is slightly paranoid about...
by The QCC
Wed Jun 17, 2015 5:37 pm
Forum: Sandbox
Topic: Hot link and copy protection
Replies: 4
Views: 3906

Hot link and copy protection

This linked image has basic Hot Link and Copy Protection.

It is not 90% safe, but I would be interested to know what method you used to copy the image and or link the image.
by The QCC
Wed Jun 17, 2015 2:41 pm
Forum: Camera systems and imaging
Topic: Any experience with a Canon XTi?
Replies: 54
Views: 12666

Re: Any experience with a Canon XTi?

A list of Canon cameras with remote shooting AND Live View.
by The QCC
Wed Jun 17, 2015 2:33 pm
Forum: Camera systems and imaging
Topic: Any experience with a Canon XTi?
Replies: 54
Views: 12666

Re: Any experience with a Canon XTi?

Several Canon DSLR's have the first curtain shutter built in as a feature with Live View. I have been stating for quite some time, that my Canon 5D MkII and 1000D/XS do not show any mirror / shutter effect. The 5D is mounted on a 17kg microscope and the 1000d/XS is on a much lighter 5kg microscope. ...
by The QCC
Wed Jun 17, 2015 11:07 am
Forum: About the website, the magazine and this forum
Topic: Posting of images, which are not your own
Replies: 5
Views: 4470

Re: Posting of images, which are not your own

Dennis wrote:Just saying to have their pic appear here is stealing bandwidth from their server.
Hot Link protection prevents other web sites from using your bandwidth. It does not prevent copying your images.
There is no 100% way of preventing somebody gaining access to your images.
by The QCC
Tue Jun 16, 2015 4:34 pm
Forum: Microscopes and optics
Topic: Eyepieces vs. Screen.
Replies: 18
Views: 4417

Re: Eyepieces vs. Screen.

photomicrography being unofficially plastered with a frame What is now standard was once the exception. "Kleenex" was a brand name by Kimberly-Clark and now refers to any facial tissue. "Cellophane" was invented by Innovia Films , but is now just clear flexible crinkly film. As you mentioned previo...
by The QCC
Tue Jun 16, 2015 2:35 pm
Forum: Microscopes and optics
Topic: Eyepieces vs. Screen.
Replies: 18
Views: 4417

Re: Eyepieces vs. Screen.

There is more interest in whether the sensor gets covered than whether the image actually reflects what was perceived. So I do not clutter up this thread with more images, I have posted some microscopes images as I perceived them. In all cases what I perceived may well be not what others see. Altho...
by The QCC
Tue Jun 16, 2015 12:00 pm
Forum: Microscopes and optics
Topic: Eyepieces vs. Screen.
Replies: 18
Views: 4417

Re: Eyepieces vs. Screen.

when capturing what the microscope "sees" is the goal Other then researchers, I would be very curious to know how many amateur microscopists are truly interested in what the "microscope sees". As opposed to what they can see through the microscope. I am not a microscopist. Not even an amateur micro...
by The QCC
Tue Jun 16, 2015 11:34 am
Forum: Microscopes and optics
Topic: Eyepieces vs. Screen.
Replies: 18
Views: 4417

Re: Eyepieces vs. Screen.

A microscope without an eyepiece is a lens. Cameras have lens attached to them. My cameras have microscopes as lenses. My cameras are adjusted to see rectangular images. Ergo, my camera/microscope is set up correctly. If Mr. Krebs does not use my workflow. If he did, he would probably write" all art...
by The QCC
Tue Jun 16, 2015 1:06 am
Forum: About the website, the magazine and this forum
Topic: Posting of images, which are not your own
Replies: 5
Views: 4470

Re: Posting of images, which are not your own

The

Code: Select all

[img][/img]
only works if the website has NOT enabled HotLink Protection.
For example, images on my web site have HotLink Protection enabled.
by The QCC
Tue Jun 16, 2015 12:48 am
Forum: Microscopes and optics
Topic: Eyepieces vs. Screen.
Replies: 18
Views: 4417

Re: Eyepieces vs. Screen.

I really think I am the exception. The eyepieces for my Labomed microscope have never been installed. The caps are still on the tubes. I had real difficulty looking through the eyepiece and the camera at the same time on the monocular microscopes. Therefore, the rectangular format is in fact the nat...
by The QCC
Sun Jun 14, 2015 6:37 pm
Forum: Home-made microscope adaptations
Topic: Dual slide holders for a flat lap grinder.
Replies: 3
Views: 2572

Re: Dual slide holders for a flat lap grinder.

So you can install about 5 of those around your turntable and grind them at once? That was my original thought. But physics did me in. The slides need water flowing between them and the disc. As soon as the third slide was added, it started bouncing around because of the drought created by the prec...
by The QCC
Sun Jun 14, 2015 4:51 pm
Forum: Home-made microscope adaptations
Topic: Dual slide holders for a flat lap grinder.
Replies: 3
Views: 2572

Dual slide holders for a flat lap grinder.

Grinding rocks to make thin section slides can be a boring and time consuming task. Holding the slide to the flat lap disk by hand is both boring and tiring. I do not have a robot to hold the slide, so I came up with this Rube Goldberg solution. FlatLapWithHolders.jpg The holders consist of a 5cm le...
by The QCC
Sat Jun 13, 2015 7:45 pm
Forum: Home-made microscope adaptations
Topic: I saw the light. Inspred by billbillt
Replies: 1
Views: 2019

I saw the light. Inspred by billbillt

Taking billbillt as my inspiration, I dug out my 6w LED that was useless as an illuminating source for my main microscope. Gathering up some spare parts I assembled a working LED illuminator for the Hover Labs polarizing microscope. The only part I did not have was a socket for the lamp. The local h...
by The QCC
Sat Jun 13, 2015 11:36 am
Forum: Home-made microscope adaptations
Topic: 2Watt Capsule LED bulb W/G4 base Finally arrived
Replies: 9
Views: 3402

Re: 2Watt Capsule LED bulb W/G4 base Finally arrived

I am not sure what the LED watt to incandescent watt ratio is, but 1 LED watt is approx. 80-100 lumens.

I must have been eating mushrooms when I thought the $2.00 6w LED would replace my halogen light.

More to come...
by The QCC
Sat Jun 13, 2015 3:36 am
Forum: Home-made microscope adaptations
Topic: 2Watt Capsule LED bulb W/G4 base Finally arrived
Replies: 9
Views: 3402

Re: 2Watt Capsule LED bulb W/G4 base Finally arrived

I have seen the light!

I tried the LED on a 12VDC switching power supply and it works.
I will somehow put it in an old housing and try it as a light source for my grinding area AJ Optiks microscope.

More to come...