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| 1 | 2 |  » Stats |
Members: 50,143
Threads: 82,316
Posts: 853,060
Top Poster: glsammy (15,069)
| | Welcome to our newest member, PeterHA17 | |  | 
18-01-2007, 11:08 AM
|  | Knight Commander of the Wild Empire | | Join Date: Jun 2005 Location: N.E.SOMERSET
Posts: 9,043
| | | Hand lense for field use
I cannot find the thread but someone enquired about a hand lense
I believe I recommended a 10x magnification 20mm dia lense
I have since been corrected and 6x-7x magnification are better
because of their greater depth of field when viewing three dimensional
objects such as bees and insects etc. Tips for selecting a hand lens magnifier for geology or earth science
__________________
Your garden their refuge, a jig-saw of habitats for wildlife under pressure |
19-01-2007, 06:44 PM
|  | Commander of the Wild Empire | | Join Date: Nov 2006 Location: Yorkshire Dales
Posts: 2,589
| | | Re: Hand lense for field use
Quote:
Originally Posted by nightshade  I cannot find the thread but someone enquired about a hand lense
I believe I recommended a 10x magnification 20mm dia lense
I have since been corrected and 6x-7x magnification are better
because of their greater depth of field when viewing three dimensional
objects such as bees and insects etc. Tips for selecting a hand lens magnifier for geology or earth science | I regularly use one to look at mosses and a 6x 0r 7x isn't really enough I use one which has a x10 at one end and a x20 at the other. I think it all depends what you want to use it on. For general purposes I'd go for double ended one with x8 and x15 if you can get them. Good ones (try Alana Ecology) can be quite expensive c.£30 or so.
__________________ Rob
More photographs at my Website |
20-01-2007, 08:11 AM
| | Knight Commander of the Wild Empire | | Join Date: Jun 2005 Location: N.E.SOMERSET
Posts: 9,043
| | | Re: Hand lense for field use
I bought mine from the USA as the exchange rate was very good
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