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Equipment Discussions >> ATM, Optics and DIY Forum

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dan_h
Carpal Tunnel


Reged: 12/10/07

Re: SK5 blanks, what to make? [Re: ccaissie]
      #5629402 - 01/18/13 06:43 AM

Quote:

Just shoved sk5 into a Kzfsn4 combo (ATTACHED)and it is much better than the standard doublet combo. Not optimized, as in the OSLO attachment in the previous post. Some combo with SK5 must be worth pursuing...




This was my original thinking, that there must be something this glass can be used for. However, its dispersion characteristics are really nothing special and it does not fall off of the line for normal glasses. It seems this glass works in some designs because it has a higher than usual index of refraction which provides for less curved surfaces than BK7 but beyond that, I don't have the knowledge/intuition to envision anything else. Hence I asked the question.

dan


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