Kolet
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- Nov 11, 2010
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That sounds very interesting. Maybe down the road I'll attempt to purchase a laser that can fluoresce minerals.
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That sounds very interesting. Maybe down the road I'll attempt to purchase a laser that can fluoresce minerals.
Yeah, I'm getting a 445 nm blue laser. I'll have to read up on this subject. Seems interesting enough, for sure.
IMO a UV LED flashlight is better for getting materials to fluoresce - the broader beam works better for this than a laser would. I have a couple of UV LED lights that I use for scorpion hunting - one is 365 nm and filtered and it works really well, but a cheap UV LED light works almost as well and is about 1/3 the price.
I just purchased it. What have you done with yours so far?
and yeah, I have a few LED keychains.
The tennis balls *really* light up! I was scorpion hunting along a trail in a nearby park and found over a dozen. Lots of people walk their dogs on the trails, and they must have been dropping tennis balls as they go. They light up brightly in UV, all it takes is one small bit of the ball peeking out from under the leaves...
(+ Rep for your neat telescope in your avatar photo, I'd like to have two refractors like that connected side by side to use like super binoculars )
Thanks! There was someone who brought a pair of 6" refractors to RTMC one year set up as a binocular, don't remember if they were A/P's or not. These days a pair of refractors like the one in my avatar will set you back about $45K, if you can find them.
Not quite binoculars but here is my side-by-side refractor set-up.
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TeleVue TV-85 and William Optic FLT-110 APO on a WO EZTouch alt-az mount.
Neat scope set-up !
Do they always both point at the same exact object at the same time ? YES
Is that set up for allowing two people to view at the same time,YES or to give you two different magnifications of the same object without having to change eyepieces ?YES
(I'm a casual backyard observer, and not always familiar with the all the technical particulars of some set ups, but I keep learning more and more )Sounds like you already have a good grasp.
They are aligned very closely and point to the same object so two people can view simultaneously. Depending on eyepieces used, they can be the same magnification but the focal lengths are different so with the same focal length eyepieces you get different magnification.
Telescope focal length/eyepiece focal length = magnification.
e.g. 770mm/13mm = 59.2x and 660mm/13mm = 50.8x (Same eyepiece f.l.)
770mm/13mm = 59.2x and 660mm/11.1mm = 59.2x (Same magnification)
I usually have the smaller scope set up for wide field and the larger one zoomed in. Just different perspectives.
Thank you for your kind words.