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TOPIC: Hi all !

Hi all ! 2 years 9 months ago #42

This is Danny Sanchez, reporting for duty.
Anyone here with any photomicrography questions!?

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Hi all ! 2 years 9 months ago #44

Hi Danny!

Thank you for taking the time to answer these questions!
Here is the photo I entered into the staff competition at Gem-A. It is a Fulgurite, with the image captured on an i-phone with a detachable lens, lit using a dark field loop. Following your talk at Conference I know you have a range of amazing equipment, but do you have any advice to the absolute beginner on a budget? :)

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Last edit: by Angharad Kolator Baldwin.

Hi all ! 2 years 9 months ago #45

Not wanting to hi-jack this thread, but thanks Danny for giving an interesting and at times very emotional talk on your experiences and work at the Gem-A conference this year. I am really pleased to see this initiative in place! Look forward to see the discussions!

Alan

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Last edit: by Alan Hart.

Hi all ! 2 years 9 months ago #48

it really was a pleasure, Alan. A million thanks.

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Hi all ! 2 years 9 months ago #49

I don't know Angs, I think that's a pretty successful photo. After all, it's fulgurite and you've really managed to convey its physical character and even suggested the "power" of energy behind it that was, after all, its inception!
but to answer your question: if you're trying to take informative, gemmological photos, my opinion is to splurge on light. you can use an iphone or a camera on microscope but if it's not lit well, you won't be maximizing your camera's depth of field.
i say splurge, in relative terms. there are all kinds of lights and they are everywhere - and on the second hand market, they're cheap.

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Hi all ! 2 years 9 months ago #50

Hi Danny,

Thanks for the advice! I'll let you know how I get on and post further photographic attempts! What are you working on at the moment? Any particular gemstones catching the limelight for you?

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Hi all ! 2 years 9 months ago #51

Hi Danny,
it was a pleasure to have met you at the Gem-A conference this year. Thanks for your fascinating presentation.
Could you give me some details about your lighting equipment please?
You recommended "floppy" light guides for illuminating microscopic inclusions.
I have seen a few of these on offer online, but is there any particular specification I should look out for?
Also, what should I be looking for as a light source ?

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Hi all ! 2 years 9 months ago #52

Hi Danny,

I missed your talk at the Conference but by all accounts, it sounds fantastic! Do you have a website that I can visit to see your work?
I would like to get into photomicrography but I am not even sure where to start! How do you know which gemstones to photograph? Or what types of stones will lend themselves well to being photographed?

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Hi all ! 2 years 9 months ago #53

Hi Danny,

I'm Barbara and we met at the conference where I really enjoyed your talk. Here are some images I took today, can you guess the stone?
I'm really interested in showing the dichroism, any ideas on how to improve that?





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Last edit: by Barbara Kolator.

Hi all ! 2 years 9 months ago #54

Hiya! Thanks for the kind words and it was MY pleasure! Ok. So.
Re: The light source, itself.
Ask as many people as you know, what they use. This is not just a photomicrgraphy tool - it's a life-long gemological tool. It's not expensive if you're comfortable buying second hand. For the average, 150 watt halogen light source, you shouldn't be paying more than 65£ (and can certainly be as inexpensive as 45£).
The one thing to be aware of is : different companies make different output ports for the light guides. Meaning: one company might have a 15mm output (hole for the light guide) and another might have a 7mm output.
But! I'll be really specific. For my regular, gemological observation, I use a Chiu Technical Corporation "Lumina". I bought it (second hand) for ... maybe 50 USD. - - Dolan Jenner "Fiber Lite" is another work horse that is SUPER inexpensive and I've never heard any complaints about.

As for the liquid light guide (floppy) - this is something much more specialized. Any gemological supply company will know what you're talking about and can help in a snap. This is the retail route.
The only thing to remember to look for is that it actually fits the output port on your light source and that you BE SURE to buy a pinpoint attachment. These are difficult to find second hand so you should just spurge and buy it anywhere you can.
(There's a man in the states name Jeff Wildman who sells all these things. There's probably someone in the UK as well.)

As a gemologist, who id's stones everyday in the scope for work, I don't know where I'd be without this whole kit. All three parts.


712348 wrote: Hi Danny,
it was a pleasure to have met you at the Gem-A conference this year. Thanks for your fascinating presentation.
Could you give me some details about your lighting equipment please?
You recommended "floppy" light guides for illuminating microscopic inclusions.
I have seen a few of these on offer online, but is there any particular specification I should look out for?
Also, what should I be looking for as a light source ?

The following user(s) said Thank You: Jonathan Mehdi

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