Mini-ERF??

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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Merlin66
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Mini-ERF??

Post by Merlin66 »

http://www.ebay.com/itm/Optical-Filter- ... 1e4e63b386
This caught my eye...


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swisswalter
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Re: Mini-ERF??

Post by swisswalter »

Hi Ken

thanks for looking around. That looks very good


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DSobserver
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Re: Mini-ERF??

Post by DSobserver »

:unsure: central band pass is 665nm so I don't expect great result at 656nm. And what about after 800nm and the IR :?


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colinsk

Re: Mini-ERF??

Post by colinsk »

And tilting it will red shift it even more.

I should have said that tilting it will blue shift it. :oops:


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