Search found 76 matches

by Glot
Wed Sep 29, 2021 11:37 pm
Forum: Microscopes and optics
Topic: Cover glass thicknes
Replies: 6
Views: 1780

Cover glass thicknes

Leitze Labourlux 11 Pol. Bought second hand. Used for petrology thin sections. The X4 objective does not have a cover glass thickness on it. Would that mean it's zero or at that power it doesn't matter? What effect would cover glass have in this situation on any power? Would using them or not using ...
by Glot
Sat Jul 10, 2021 10:09 am
Forum: Illumination Techniques
Topic: 50W LEDs
Replies: 10
Views: 4256

Re: 50W LEDs

I use 50 watt LED to light up small car parks. If they are decent qua.ity, they will be about 110 ,umens per watt. Your QI lamp won't be close to that. However, I really doubt what you have ordered is actually 50 watts so might still be okay. Heat sink applies. If its 50 watts, ypu will probably nee...
by Glot
Sat Jul 10, 2021 8:46 am
Forum: Digital processing
Topic: Picolay
Replies: 5
Views: 5179

Picolay

Has anyone figured out why Picolay is free? Nothing on the internet is free.
by Glot
Sat Jul 10, 2021 8:08 am
Forum: Home-made microscope adaptations
Topic: Mineral grains
Replies: 5
Views: 3259

Re: Mineral grains

Thanks Patta. Thats what I was trying to recall.
For those unfamiliar, this system help. Someone shows how to make a home made one.

https://youtu.be/j955_cOi_qE
by Glot
Sat Jul 10, 2021 8:06 am
Forum: Miscellaneous
Topic: What is your favorite microscopy YouTube channel?
Replies: 18
Views: 14119

Re: What is your favorite microscopy YouTube channel?

IBiology Techniques after this one.
by Glot
Sat Jul 10, 2021 8:04 am
Forum: Microscopes and optics
Topic: Long working distance
Replies: 3
Views: 1180

Long working distance

What type of microscope would you call one that has the charasterics of a stereo dissection microscope but with a single objective? I'm wanting large working distance, large focal range, mag up to about x100 max. I've considered a not junk digital. I mainly want to use it to photograph mineral speci...
by Glot
Sat Jul 10, 2021 7:59 am
Forum: Illumination Techniques
Topic: 50W LEDs
Replies: 10
Views: 4256

Re: 50W LEDs

You can use an isolation training if you like that idea. Doesnt need to be a step down. Isolation trannis have other isolation features. However, they have their fails. They only isolat the device from earth. You will still get an electric shock if you connect to both outputs. Also, I would be surpr...
by Glot
Wed Jul 07, 2021 8:12 am
Forum: Home-made microscope adaptations
Topic: Mineral grains
Replies: 5
Views: 3259

Mineral grains

There is a DIY tutorial online for a technique involving glueing a crystal grain to a needle and rotating it under polarised light. Does anyone know what this technique is called or even better, the tutorial I am looking for?
by Glot
Wed Jul 07, 2021 8:06 am
Forum: Home-made microscope adaptations
Topic: Stage adaption
Replies: 5
Views: 2917

Re: Stage adaption

Thanks everyone. That's pointed me in the right direction.
by Glot
Sun Jul 04, 2021 8:52 am
Forum: Home-made microscope adaptations
Topic: Stage adaption
Replies: 5
Views: 2917

Stage adaption

I have a cheap stereo. The fine focus is too coarse. I'm thinking of an adjustable stage to give me that sub mm adjustment. Does anyone have any ideas on a stage I could source that could be attached to an existing flat surface with modifications?
by Glot
Mon May 31, 2021 1:27 am
Forum: Miscellaneous
Topic: Loupes
Replies: 3
Views: 2582

Loupes

I am looking for a decent but affordable 10X loupe. Eyepeice, watchmaker type. NOT the folding type. Found a couple but can't find specs. Asco appears to be one contender but apart from the colour, not much info available about their models. Can anyone suggest a site or brand or model?
by Glot
Tue Apr 28, 2020 7:44 am
Forum: Miscellaneous
Topic: Lamps
Replies: 1
Views: 1990

Lamps

Does anyone know if there is anything special about a 6v or 12v G4 Halogen lamp for a microscope compared to a standard one?
by Glot
Sun Apr 19, 2020 9:15 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 6304

Re: Highest power LED suitable for microscope?

Something along these lines may be whst you are after.

https://www.lumileds.com/products/high-power-leds
by Glot
Sun Apr 19, 2020 9:15 am
Forum: Beginner's corner
Topic: What to buy. Advice
Replies: 3
Views: 1913

Re: What to buy. Advice

I was trying to explain in an uncomplicated way from one beginner to other beginners.
by Glot
Sun Apr 19, 2020 7:52 am
Forum: Beginner's corner
Topic: What to buy. Advice
Replies: 3
Views: 1913

What to buy. Advice

I am new and I know nothing. I have a zoomable stereo and a Leitz compound. The stereo is great fun, easy to use. It apparently goes from 7 to 45 mag. The focus is too coarse at higher mag but manageable. Maybe one day I can modify it. The advantages are a huge working distance and at lower mag, ver...
by Glot
Sat Apr 18, 2020 10:26 pm
Forum: Microscopes and optics
Topic: Working distance
Replies: 4
Views: 2498

Re: Working distance

I guess that's a fluke and not a rule.
by Glot
Sat Apr 18, 2020 10:25 pm
Forum: Miscellaneous
Topic: Slides
Replies: 5
Views: 3152

Re: Slides

Standard slides are easy but I use them for petrology thin sections and they are fragile. I have some 2mm glass which also allows me to cut custom sizes. I like 30 x 75. Now you mention the condenser, I will experiment
by Glot
Sat Apr 18, 2020 9:10 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 6304

Re: Highest power LED suitable for microscope?

There are basically two types of LED arrays. Constant voltage and constant current. I get the feeling you are trying to compare LED to incandescent directly. They are two different types of light source. Bit like comparing fluroescent to incandescent.
by Glot
Sat Apr 18, 2020 7:55 am
Forum: Miscellaneous
Topic: Slides
Replies: 5
Views: 3152

Slides

General question. Why are slides so thin? Can i use thicker glass?
by Glot
Sat Apr 18, 2020 7:53 am
Forum: Miscellaneous
Topic: What is your favorite microscopy YouTube channel?
Replies: 18
Views: 14119

Re: What is your favorite microscopy YouTube channel?

Frank Reiser from Frank's Beautiful Rocks and Minerals. He does one on using a petroscope.
https://youtu.be/YcQ65okLXTk
by Glot
Sat Apr 18, 2020 7:25 am
Forum: Microscopes and optics
Topic: Working distance
Replies: 4
Views: 2498

Re: Working distance

Thanks.
What would a typical WD for same objective be?
by Glot
Sat Apr 18, 2020 12:22 am
Forum: Microscopes and optics
Topic: Working distance
Replies: 4
Views: 2498

Working distance

With Leitz objectives. EF 40/ 0.65 P. Is the WD 0.65mm?
by Glot
Sat Apr 18, 2020 12:09 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 6304

Re: Highest power LED suitable for microscope?

You will need a COB style to get 10 watts. Bigclive.com on you tube has a lot of handy led info. If you are using raw LED then you need current limiting. Sounds like you need a better power supply if the voltage at its output is dropping. I use an iron ore lighting transformer (they are being thrown...
by Glot
Fri Apr 17, 2020 5:53 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 6304

Re: Highest power LED suitable for microscope?

Are you looking for a direct replacement or something you can play around and build yourself? Quality LED chips produce about 100 lumens per watt now. You can get chips with a CRI of 97. For quality LED chips, you will need to look outside normal suppliers.
by Glot
Fri Apr 17, 2020 5:45 am
Forum: Resources (online, books etc.)
Topic: Spindle stage
Replies: 3
Views: 3035

Re: Spindle stage

There is also a short you tube. Just search spindle stage.
by Glot
Tue Apr 14, 2020 11:40 pm
Forum: Resources (online, books etc.)
Topic: Spindle stage
Replies: 3
Views: 3035

Spindle stage

Some may find this interesting.
by Glot
Tue Apr 07, 2020 8:54 am
Forum: Resources (online, books etc.)
Topic: Lighting
Replies: 3
Views: 2863

Re: Lighting

Gotta love the university of you tube. There's some really good videos by a bloke called microbehunter,worth watching.
by Glot
Mon Apr 06, 2020 8:35 am
Forum: Resources (online, books etc.)
Topic: Lighting
Replies: 3
Views: 2863

Lighting

A lot of info well presented

https://youtu.be/ZRZ9_ov6Fak
by Glot
Wed Apr 01, 2020 9:01 am
Forum: Beginner's corner
Topic: Polarising
Replies: 19
Views: 16090

Re: Polarising

Jb89. Be very interested to hear conclusions. I have identified a couple of UV cure. Viscosity is a bit high at 2000 but found one that is 300 and RI of about 1.53. UV cure. Haven't tried it yet. I like the idea of controlling the rest time before cure to allow the bonding agent to flow very thin. T...